Polycom Musical Table V2IU 4350 User Manual
User Manual  
V2IU 4350 Converged  
Network Appliance  
V7.2.2 — May 2007  
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Contents  
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–1  
The V2IU 4350 Converged Network Appliance . . . . . . . . . . . . . . . . . . . . . 1–1  
T1 Wide Area Network (WAN) Access Router . . . . . . . . . . . . . . . . . . 1–1  
Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
VoIP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Quality of Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Call Quality Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Future-proof Scalability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Feature Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–2  
Front Panel LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–3  
Back Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1–4  
2 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Physical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Required Tools and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–1  
Desktop Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2  
Wall-Mount Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–2  
Rack-Mount Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–3  
Connecting the Power and Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4  
Administration of the 4350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–4  
3 Configuring the V2IU 4350 . . . . . . . . . . . . . . . . . . . . . . . . 3–1  
Configuration Guide For IP Centrex Applications . . . . . . . . . . . . . . . . . . . 3–2  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–3  
Configuration Guide For Station Side IP PBX Applications . . . . . . . . . . . 3–4  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–5  
Configuration Guide For Trunk Side IP PBX Applications . . . . . . . . . . . . 3–6  
Configuration Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–7  
Configuration Guide For Hosted Video Applications . . . . . . . . . . . . . . . . 3–8  
Configuration Guide For Enterprise Video Applications . . . . . . . . . . . . 3–10  
1
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User Manual V2IU 4350 Converged Network Appliance  
System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12  
Configure the LAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–12  
Configuring VLANs in the 4350 . . . . . . . . . . . . . . . . . . . . . . . . . . 3–13  
Modify an Existing VLAN Configuration . . . . . . . . . . . . . . . . . . 3–15  
Delete an Existing VLAN Configuration . . . . . . . . . . . . . . . . . . . 3–15  
Assign the 4350’s ALG to your Priority VLAN . . . . . . . . . . . . . 3–16  
Configure the WAN Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–16  
Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–18  
Frame Relay Mode and DLCI . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–18  
Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19  
Payload Loopback . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19  
Configure the DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–19  
Delete a DHCP IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–21  
Disable The DHCP Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–21  
Configure Hostname, SNMP and Remote Logging . . . . . . . . . . . . . 3–22  
Configure SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–22  
Disable SNMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–23  
Configure Remote System Logging . . . . . . . . . . . . . . . . . . . . . . . 3–23  
Disable Remote System Logging . . . . . . . . . . . . . . . . . . . . . . . . . . 3–23  
Configure a local Hostname . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Enable Mean Opinion Scoring (MOS) . . . . . . . . . . . . . . . . . . . . . 3–24  
Set MOS Threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Change the Administration Password . . . . . . . . . . . . . . . . . . . . . . . . 3–24  
Read-only User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–25  
Enabling a Read-only User . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–25  
Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–26  
How Subinterfaces Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–26  
Configuring Subinterfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–27  
ToS Byte Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–28  
How the ToS Byte Setting Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–28  
Viewing or Changing the ToS Byte Setting . . . . . . . . . . . . . . . . . . . . 3–28  
H.323 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–30  
H.323 Activity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–35  
H.323 Alias Manipulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–35  
H.323 Neighboring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–37  
Regular Expressions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–39  
Forwarding Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40  
How Forwarding Rules Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40  
Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–40  
Configuring Forwarding Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–41  
Peering Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–43  
How Peering Proxy Works . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–43  
2
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Contents  
Configuring Peering Proxy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–47  
Adding an H.323 Prefix Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–48  
Clients List Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–49  
Enabling the Clients List Lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–50  
H.323 Activity Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–51  
Type of Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–52  
Call Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–52  
Call Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–54  
Viewing the H.323 Activity Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . 3–55  
VoIP Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–56  
Configure the VoIP ALG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–57  
Configure VoIP Subnet Routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–59  
Enter a VoIP Subnet Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–60  
Delete a VoIP Subnet Route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–60  
Configure IP Phones, IADs or Softphones . . . . . . . . . . . . . . . . . . . . . 3–61  
Data Networking Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–62  
NAT for Data Traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–62  
Configure Dynamic NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–63  
Configure Static NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–63  
Delete a Static NAT entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–64  
Static IP routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–64  
Configure the static route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–64  
Delete the static route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–65  
Firewall Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–65  
Enable or disable the firewall . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–66  
Configure Basic settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–66  
Configure Advanced Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–66  
Remove Advanced Setting Entries . . . . . . . . . . . . . . . . . . . . . . . . 3–68  
Traffic Management Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–68  
Enable Traffic Shaping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–69  
Optionally enable priority IP addresses . . . . . . . . . . . . . . . . . . . . . . . 3–70  
Enable CAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–70  
Determining the maximum number of concurrent calls . . . . . . 3–71  
Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–71  
A Closer Look at Traffic Management in the 4350 . . . . . . . . . . . . . . 3–71  
Classifying . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–72  
Upstream Traffic Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–72  
Priority classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–72  
Scheduler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–72  
Traffic shaper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–72  
Downstream Traffic Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3–73  
3
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User Manual V2IU 4350 Converged Network Appliance  
4 System Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–1  
Viewing Software Version, Hardware Platform and the LAN MAC Address  
4–1  
Viewing the ALG registration code . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Enter the Registration Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Viewing Networking Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–2  
Routing Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Link Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Interface Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–3  
Viewing Advanced System Information . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
System Uptime . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
Process Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
Memory Usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–4  
System Logging Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
Passive Voice Call Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
Accessing Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5  
Verify Registered Voice and Video Devices . . . . . . . . . . . . . . . . . 4–6  
Performing a Ping Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7  
Performing a Traceroute Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–7  
Restarting Networking Processes . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8  
Rebooting the 4350 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–8  
5 Saving and Restoring the V2IU 4350 Configuration . . . . . . 5–1  
The ewn Command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–1  
Create a Backup File and Save in Local Flash . . . . . . . . . . . . . . . . . . . 5–2  
Copy a Backup File to a Remote TFTP Server . . . . . . . . . . . . . . . . . . . 5–2  
Download a Backup File from a Remote TFTP Server . . . . . . . . . . . . 5–2  
List the Available Backup Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–2  
Delete a Backup File . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5–3  
Load a Backup File so that it Becomes the Running Configuration . 5–3  
6 Upgrading the V2IU 4350 . . . . . . . . . . . . . . . . . . . . . . . . . 6–1  
Upgrade Procedure for Software Revision 1.3.11 or Later . . . . . . . . . . . . 6–1  
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Appendix–1  
Troubleshooting Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–1  
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix–2  
Regulatory Notices . . . . . . . . . . . . . . . . .Regulatory Notices–1  
END-USER LICENSE AGREEMENT FOR POLYCOM® SOFTWARE .  
Regulatory Notices–1  
4
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Contents  
FCC PART 68 NOTICE TO USERS OF DIGITAL SERVICE Regulatory  
Notices–10  
INDUSTRY CANADA (IC) NOTICE . . . . . . . . . . . . . Regulatory Notices–11  
5
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User Manual V2IU 4350 Converged Network Appliance  
6
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1
Introduction  
The V2IU 4350 Converged Network Appliance  
The V2IU 4350 is an intelligent, all-in-one networking solution for enterprises  
and service providers. It reduces costs by simplifying the deployment,  
management and security of converged voice, video and data networks. The  
4350 provides the following important functions for converged networks:  
T1 Wide Area Network (WAN) Access Router  
The 4350 provides an integrated T1 CSU/DSU for small and medium office  
connectivity.  
The 4350E is designed for use in Australia, New Zealand, Korea and Japan. The  
T1 port on the 4350E is functionally disabled through software. The T1 port should  
not be connected to the telco network.  
Note  
•
•
•
•
Fully integrated CSU/DSU  
T1 support  
Fractional T1 support  
Layer 2 protocol support for: HDLC, Cisco HDLC (cHDLC), PPP, MLPPP,  
MLPPPoFR, Frame Relay  
•
•
On-board RJ-48 connector for easy direct connection  
T1/E1 framer and transceiver  
— B8ZS/HDB3 zero suppression  
— Response to Inband Loop codes (ANSI)  
— Manual payload loop through the GUI  
•
•
•
External transmit clock input and receive clock output headers  
Timing: internal or external (loop times from the network)  
Provides long haul CSU or short haul DSU signaling  
1 - 1  
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User Manual V2IU 4350 Converged Network Appliance  
•
Meets FCC part 68 protection requirements  
Security  
A stateful packet inspection firewall is used in combination with a VoIP  
application layer gateway to provide comprehensive “media-aware” security.  
The 4350 also supports IPSec for secure site-to-site networking.  
VoIP  
The 4350 resolves NAT/FW traversal problems for SIP, MGCP and H.323  
traffic. It allows a single public IP address to be used for multiple VoIP clients.  
Quality of Service  
The 4350 maximizes WAN link utilization while optimizing voice quality  
using prioritization and shaping.  
Call Quality Monitoring  
Passive call quality monitoring for each SIP or MGCP voice call includes  
statistics needed to enforce SLAs and resolve networking problems that  
negatively affect call quality.  
Future-proof Scalability  
The 4350 is a powerful, flexible platform that can be deployed initially as a  
low-cost WAN access router and then licensed through software for more  
advanced VoIP features and increased call performance. It is the ideal  
platform for service providers offering DIA, hosted VoIP and managed  
security services or enterprises migrating to converged voice and data  
networks.  
Feature Summary  
•
VoIP  
— SIP, MGCP (for voice) and H.323 (for video) application layer gateway  
enables a single public IP address to be used for multiple VoIP  
endpoints  
•
QoS  
— Class based queuing/prioritization  
1 - 2  
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Introduction  
— Diffserv marking and policing  
— Traffic shaping  
— VoIP call admission control prevents oversubscription of priority  
queue  
•
•
Security  
— Stateful packet inspection firewall  
— VoIP aware firewall dynamically provisions and closes UDP ports  
used for VoIP calls  
— IPSec: 3DES, SHA-1  
— NAT/PAT server hides enterprise LAN topology  
Passive Call Quality Monitoring  
— Per call statistics include mean opinion score (average and minimum),  
jitter, latency, packet loss and much more  
— Alarms for poor MOS scores  
— Active call count indicators  
Front Panel LEDs  
The LEDs display real-time information for key functions of the 4350. They are  
as follows:  
LED Label  
Power  
Activity  
Off  
Description  
A
B
Power switch is off (or no power from the AC outlet)  
Power is supplied to the unit  
Green  
Off  
Status  
The unit could not boot up because of self test  
failure  
Green  
Self test passed  
Flashing Green  
Configuration is being written to permanent storage  
or an upgrade is in progress  
C
T1  
Off  
The T1 is in an alarm state and not synchronized  
T1 is in sync and no alarms are reported  
Green  
1 - 3  
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User Manual V2IU 4350 Converged Network Appliance  
Back Panel  
The back panel of the 4350E contains the following connections:  
Name  
Description  
A
B
Power Connector  
Accepts the plug from the supplied power cord to connect the unit to an AC  
power source  
10/100 Mbps LAN Ports  
4 x Local Area Network (LAN) ports to connect the IP phones or an  
Ethernet switch. Unit can also be configure through any of these ports using  
the web interface  
C
D
USB Ports  
2 x USB ports (Not Used)  
Ethernet WAN Port  
Can be used as an alternative to the T1 WAN ports. This port is typically  
used when connecting the 4350 to an existing T1/E1 WAN router, cable or  
xDSL modem.  
E
Management Console Port  
This port is used to establish a local console session with the 4350 using a  
VT100 terminal or emulation program. The cable required is a  
straight-through 8-wire cable. The serial port uses a baud rate of 9600, 8  
data bits, 1 stop bit and no parity.  
This port is used for debug or local diagnostic purposes only. Primary  
configuration of the 4350 is performed from a web browser as covered in  
VOS User Manual  
F
Erase Button  
T1/E1 WAN  
Press the Erase button twice in quick succession to reset the CLI password  
to the factory default.  
Press the Erase button three times in quick succession to reset the  
Polycom V2IU 4350 to the factory default. This will reset all passwords and  
erase all prior configurations.The default LAN address will now be  
192.168.1.1.  
G
T1/E1 port is used to connect to a data T1 line. The device at the far end of  
the line is a router or other device expecting TCP/IP data. Individual DS-0  
channels on T1 are not used to carry uncompressed voice.  
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2
Getting Started  
Physical Installation  
The V2IU 4350 is designed for desktop, rack or wall-mount installation. Please  
observe the following guidelines when installing the system:  
•
Never assume that the AC cord is disconnected from a power source.  
Always check first.  
•
Always connect the AC power cord to a properly grounded AC outlet to  
avoid damage to the system or injury.  
Ensure that the physical location of the installation has adequate air circulation  
and meets the minimum operating conditions as provided in the  
environmental specifications for the system.  
Secure the power supply using a fastener or nearby shelf so that it does not hang  
from the power connector.  
Warning  
Required Tools and Materials  
The following items are required:  
•
If the unit is to be mounted on the wall:  
— 1 Flat or Phillips screw driver  
— 2 round or flat head Phillips or slotted screws - 1 ½ inch long  
— 2 hollow wall anchors  
•
If the unit will be mounted in a shelf:  
— 1 Flat or Phillips screw driver  
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User Manual V2IU 4350 Converged Network Appliance  
•
If the T1/E1 port will be used to connect to WAN:  
— T1 cable to connect the T1/E1 port to a T1 line.  
To reduce the risk of fire, use only 26 AWG or larger wire (e.g. 24, 22, 20, etc.) to  
connect the T1 port on your unit to an RJ-45 jack.  
Warning  
•
Ethernet cables to connect the LAN ports to LAN switches or to individual  
IP phones. They can also be used to connect the Ethernet WAN port to a  
WAN router, a Cable Modem or a DSL Modem, if T1/E1 port is not being  
used to connect to the WAN.  
Desktop Installation  
1. Remove the 4350 and accessories from the shipping container.  
2. Place the 4350 on a flat, dry surface such as a desktop, shelf or tray.  
3. Connect the power and network cables to the appropriate ports on the  
back of the system.  
To reduce the risk of fire, use only 26 AWG or larger wire (e.g. 24, 22, 20, etc.) to  
connect the T1 port on your unit to an RJ-45 jack.  
Caution  
Wall-Mount Installation  
1. The 4350 can be wall-mounted using the two mounting brackets on the  
bottom of the appliance. We recommend using two round or pan head  
screws.  
2. Install two screws 5.9" (150 mm) horizontally apart on a wall or other  
vertical surface. The screws should protrude from the wall so that you  
can fit the appliance between the head of the screw and the wall. If you  
install the screws in drywall, use hollow wall anchors to ensure that the  
unit does not pull from the wall due to prolonged strain from the cable  
and power connectors.  
3. Remove the 4350 and accessories from the shipping container.  
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Getting Started  
4. Mount the 4350 on the wall as shown below.  
Do not mount the 4350 on the wall as shown below.  
1. Connect the power and network cables to the appropriate ports on the  
back of the system.  
Secure the power supply using a fastener or nearby shelf so that it does not hang  
from the power connector.  
Warning  
Caution  
To reduce the risk of fire, use only 26 AWG or larger wire (e.g. 24, 22, 20, etc.) to  
connect the T1 port on your unit to an RJ-45 jack.  
Rack-Mount Installation  
You can mount the 4350 in a shelf by using the rack-mount kit supplied with  
the product.  
1. Attach the ear mounts to both sides of 4350 with the screws.  
2. Attach the 4350 with the ear mounts to the shelf by screwing the ear  
mounts to the shelf with screws.  
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User Manual V2IU 4350 Converged Network Appliance  
Connecting the Power and Cables  
The 4350 comes with an AC power cord and power adapter for connecting the  
unit to the AC outlet.  
Always connect the AC power cord to an AC outlet suitable for the power supply  
that came with the unit in order to reduce the risk of damage to it.  
Warning  
•
Connect one end of the AC power cord to the power adapter and the other one  
to the AC outlet.  
•
Connect plug from the power adapter to the Power Connector on the 4350.  
Sometimes a little force is necessary to get the plug properly positioned  
Secure the power adapter using a fastener or tie wrap to nearby shelf so that it  
does not hang from the power connector.  
Caution  
If you are connecting to the WAN using the T1, then connect the T1 cable to  
the T1/E1 port and the other end of the cable to the T1 line. Enable the T1 port  
from the Network Configuration Menu. In this case, the Ethernet WAN port  
will not be available.  
If you are connecting to a WAN router, cable modem or DSL modem, then  
connect the Ethernet cable to the Ethernet WAN port on 4350 and the other end  
to the WAN device.  
Administration of the 4350  
The 4350 is configured using a web browser such as Internet Explorer or  
Netscape Navigator. The 4350 is shipped with a pre-configured IP address for  
its LAN port of 192.168.1.1. To connect to the 4350, do the following:  
1. Connect a PC using an IP address of 192.168.1.2 and subnet mask of  
255.255.255.0 to LAN port 4 of the 4350.  
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Getting Started  
2. Launch a web browser on the PC and enter the URL string: 192.168.1.1.  
Press Return.  
3. Enter the username root and the password default to log into the system.  
The 4350 main configuration menu appears.  
For secure management of your network, be sure to change the default userid and  
password as described under Change the Administration Password.  
Note  
4. Configure the system using the information provided in Chapter 3.  
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3
Configuring the V2IU 4350  
The V2IU 4350 is a flexible, easy to use converged network appliance that  
provides many critical networking functions for IP based voice, video and  
data. It can be installed in several different topologies:  
•
•
•
•
At the customer premise for IP Centrex and hosted video applications  
At the station side of enterprise IP PBXs  
At the trunk side of enterprise IP PBXs  
At the public/private IP address boundary for enterprise video  
applications  
Most users will follow the steps provided in the “Configuring The Systems  
Settings” section of this manual to initially connect the 4350 into their IP  
network. The remainder of the configuration can be different based on the  
application, VoIP topology and presence of other networking equipment such  
as firewalls or DHCP servers. In general, however, the steps used to configure  
the 4350 are:  
Step  
Task  
1
2
3
4
5
System configuration  
VoIP configuration  
Data networking configuration  
Firewall configuration  
Traffic management configuration  
Some of the steps are optional depending on your particular application. We  
have provided configuration guidelines below for each of the application  
types supported by the 4350.  
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User Manual V2IU 4350 Converged Network Appliance  
Configuration Guide For IP Centrex Applications  
A typical 4350 installation for an IP Centrex application requires no external  
router or firewall. The 4350 WAN port is connected directly to the T1/E1 line  
and the LAN port(s) are connected directly to enterprise devices and/or  
Ethernet switches.  
VoIP Operations Center  
Application Server  
Softswitch  
NMS  
T1  
Gateway  
PSTN  
PSTN  
Enterprise  
Enterprise  
T1/FT1  
T1/FT1  
4350  
4350  
Gateway  
EM003  
VoIP signaling is performed in the service provider network via a softswitch  
and the 4350 acts as a proxy for the voice devices installed in the enterprise  
LAN. In this configuration a single public IP address is used to proxy for all of  
the IP phones and to route to multiple PC’s installed on the LAN.  
The 4350 performs the following functions in this application:  
•
•
WAN/LAN IP routing.  
Traffic shaping and priority queuing to guarantee high quality voice  
traffic. These mechanisms protect voice and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for VoIP traffic. At the same time they ensure the best  
utilization of WAN bandwidth by enabling data traffic to burst up to full  
line rate in the absence of voice calls. Precedence is automatically given to  
traffic coming from IP phones and other devices using the 4350’s  
Application Layer Gateway function.  
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Configuring the V2IU 4350  
•
•
NAT/PAT translation for IP phones and PC’s. This allows a single public  
IP address to be used on the WAN link to represent all of the private IP  
addresses assigned to the LAN IP phones and PC’s.  
Static NAT entries. This enables the customer to use a WAN public IP  
address for data servers (web, mail, ftp, etc.) connected behind the 4350.  
These servers can then be configured with private IP addresses for  
additional security.  
•
•
A “VoIP” aware firewall. A full Layer 7 gateway for voice traffic and a  
stateful packet inspection firewall for data traffic.  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new calls and then return the equivalent of a “fast  
busy” to new call requests.  
•
•
DHCP server and TFTP relay. These features are used to simplify and  
expedite the IP configuration of phones and PC’s. This also includes VoIP  
signaling gateway information (MGCP, SIP, and H.323.  
Call quality monitoring (using MOS, jitter, latency, packet loss and much  
more) and test tools.  
Configuration Outline  
Configure For IP Centrex  
Task  
Subtask  
Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional but recommended  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
Firewall Configuration  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
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User Manual V2IU 4350 Converged Network Appliance  
enable Call Admission Control  
Optional  
Configuration Guide For Station Side IP PBX Applications  
Most private enterprise VoIP networks use an IP PBX at the corporate  
headquarters location to provide voice switching between headquarters,  
branch offices and the PSTN. The 4350 is used in these environments to  
securely connect branch office employees to the IP PBX installed in the  
corporate headquarters location.  
Headquarters  
IP PBX  
4350  
T1  
PSTN  
Branch Office  
Branch Office  
T1/FT1  
T1/FT1  
4350  
4350  
Gateway  
EM004  
The installation of an 4350 on the station side of an enterprise IP PBX is very  
similar to the IP Centrex application above. The branch office is connected to  
the corporate network using a private T1/E1 link connected directly to the  
WAN port of the 4350. The LAN port(s) of the 4350 are connected directly to  
enterprise devices and/or Ethernet switches.  
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Configuring the V2IU 4350  
The IP PBX in the corporate headquarters location performs VoIP signaling  
and the 4350 acts as a proxy for the voice devices installed at the branch office.  
Please note that in the configuration the 4350 located at the Headquarters  
location is acting as a WAN router only. The 4350s installed at the brand offices  
perform the following functions in this application:  
•
•
WAN/LAN IP routing.  
Traffic shaping and priority queuing to guarantee high quality voice  
traffic. These mechanisms protect voice and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for VoIP traffic. At the same time they ensure the best  
utilization of WAN bandwidth by enabling data traffic to burst up to full  
line rate in the absence of voice calls. Precedence is automatically given to  
traffic coming from IP phones and other devices using the 4350’s  
Application Layer Gateway function.  
•
NAT/PAT translation for IP phones and PC’s. This allows a single IP  
address to be used on the WAN link to represent all of the private IP  
addresses assigned to the LAN IP phones and PC’s.  
•
•
A “VoIP” aware firewall. A full layer 7 gateway for voice traffic and a  
stateful packet inspection firewall for data traffic.  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new calls and then return the equivalent of a “fast  
busy” to new call requests.  
•
•
DHCP server and TFTP relay. These features are used to simplify and  
expedite the IP configuration of phones and PC’s. This also includes VoIP  
signaling gateway information (MGCP, SIP, and H.323).  
Call quality monitoring and test tools.  
Configuration Outline  
Configure For Station  
Side IP PBX  
Task  
Subtask  
Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
Yes  
Optional  
Optional but  
recommended  
configure SNMP  
Optional  
Yes  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
Optional  
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User Manual V2IU 4350 Converged Network Appliance  
Data Networking Configuration  
Firewall Configuration  
dynamic NAT  
Optional but  
recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
Optional  
Configuration Guide For Trunk Side IP PBX Applications  
Companies with existing IP-based WAN links for inter-office voice and data  
communications can use the 4350 as a traffic shaper to meet the stringent jitter,  
latency and packet loss requirements for toll quality voice. The 4350 is  
deployed at the edge of the WAN in both headquarters and branch office  
locations, as shown below.  
Branch Office  
4350  
Headquarters  
IP PBX  
T1/E1  
T1/E1  
IP PBX  
4350  
Frame Relay  
Or  
IP Network  
Branch Office  
4350  
IP PBX  
EM005  
The 4350 performs WAN/LAN IP routing and traffic management functions  
in this application. In particular, it provides prioritization to ensure voice  
packets are not delayed or dropped while allowing data traffic to use all  
remaining bandwidth.  
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Configuring the V2IU 4350  
Configuration Outline  
Configure For Trunk Side IP  
Task  
Subtask  
PBX Application?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Not required  
Optional  
VoIP Configuration  
enable the VoIP ALG  
Not required  
configure a VoIP subnet route Not required  
Data Networking  
Configuration  
dynamic NAT  
Not required  
static NAT  
Not required  
Not required  
Not required  
Not required  
Not required  
Yes  
static IP routing  
Firewall Configuration  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Traffic Management  
Configuration  
enable Call Admission  
Control  
Not required  
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User Manual V2IU 4350 Converged Network Appliance  
Configuration Guide For Hosted Video Applications  
A typical 4350 installation for hosted video applications is depicted in the  
diagram below. In this scenario, the 4350s are used to connect all of the video  
endpoints to the Gatekeeper. The video endpoints should be configured to  
point to the LAN address of the 4350 as the Gatekeeper and the 4350 will proxy  
RAS and call setup messages to the Gatekeeper  
Service Provider  
ISDN,  
PSTN Network  
PSTN  
H.323  
Gatekeeper  
NMS  
Softswitch  
Gateway  
MCU  
5300-S  
Aggregation Router  
Hotspot  
NAT/Firewall  
Public IP  
Network  
PSTN  
SIP Voice  
User  
T-1/E-1  
NxT-1/E-1  
Company A  
Company B  
5300-E  
Aggregation  
Router  
4350  
H.323 Video  
Endpoint  
Gateway  
IP  
Phone  
V500  
H.323 Video  
Endpoint  
Laptop  
IP  
Phone  
EM008B  
The 4350 is installed at the customer premises and is used as a demarcation  
point for the video service by providing the following functions:  
•
WAN/LAN IP routing.  
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Configuring the V2IU 4350  
•
•
Traffic shaping and priority queuing to guarantee high quality video  
traffic. These mechanisms protect video and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
call quality possible for voice and video traffic. At the same time they  
ensure the best utilization of WAN bandwidth by enabling data traffic to  
burst up to full line rate in the absence of video calls. Precedence is  
automatically given to traffic coming from video endpoints and other  
devices using the 4350’s Application Layer Gateway function.  
Video NAT/PAT translation for video endpoints and PC’s. This allows a  
single IP address to be used on the WAN link to represent all of the private  
IP addresses assigned to the LAN video endpoints and PC’s.  
•
•
A video aware firewall. A full layer 7 gateway for video traffic and a  
stateful packet inspection firewall for data traffic  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new video calls and then return the equivalent of a  
“fast busy” to new call requests.  
Configure For Hosted  
Task  
Subtask  
Video Applications?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Firewall Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
Optional  
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User Manual V2IU 4350 Converged Network Appliance  
Configuration Guide For Enterprise Video Applications  
A typical 4350 installation for enterprise video applications is depicted in the  
diagram below. In this scenario, the 4350s are used to connect all of the video  
endpoints to the Gatekeeper. The video endpoints should be configured to  
point to the LAN address of the 4350 as the Gatekeeper and the 4350 will proxy  
RAS and call setup messages to the Gatekeeper.  
Headquarters  
PC  
H.323  
Gatekeeper  
Application  
Server  
Softswitch  
PC  
PC  
NMS  
IP Phone  
PSTN  
Gateway  
5300-S  
5300-E  
IP Phone  
IP Phone  
Aggregation Router  
IP  
Network  
PSTN  
PSTN  
T-1/E-1  
NxT-1/E-1  
Branch Office  
Company B  
Aggregation  
Router  
5300-E  
4350  
4
H.323  
Gateway  
Endpoint  
H.323  
Gateway  
PC  
IP Phone  
Laptop  
IP Phone  
EM009A  
The 4350 is installed at the private/public IP address boundary and provides  
the following functions:  
•
•
WAN/LAN IP routing.  
Traffic shaping and priority queuing to guarantee high quality video  
traffic. These mechanisms protect video and data traffic from contending  
for the same network resources to guarantee low latency and the highest  
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Configuring the V2IU 4350  
call quality possible for voice and video traffic. At the same time they  
ensure the best utilization of WAN bandwidth by enabling data traffic to  
burst up to full line rate in the absence of video calls. Precedence is  
automatically given to traffic coming from video endpoints and other  
devices using the 4350’s Application Layer Gateway function.  
•
Video NAT/PAT translation for video endpoints and PC’s. This allows a  
single IP address to be used on the WAN link to represent all of the private  
IP addresses assigned to the LAN video endpoints and PC’s.  
•
•
A video aware firewall. A full layer 7 gateway for video traffic and a  
stateful packet inspection firewall for data traffic  
Call Admission Control (CAC). CAC uses a deterministic algorithm to  
decide when there are insufficient network resources available to  
adequately support new video calls and then return the equivalent of a  
“fast busy” to new call requests.  
Configure For Hosted  
Task  
Subtask  
Video Applications?  
System Configuration  
configure LAN/WAN interface  
set ethernet link rate  
enable the DHCP server  
configure SNMP  
Yes  
Optional  
Optional  
Optional  
VoIP Configuration  
enable the VoIP ALG  
configure a VoIP subnet route  
dynamic NAT  
Yes  
Optional  
Data Networking Configuration  
Firewall Configuration  
Optional but recommended  
static NAT  
Optional  
Optional  
Yes  
static IP routing  
enable the data firewall  
configure basic settings  
configure advanced settings  
enable traffic shaping  
Optional  
Optional  
Yes  
Traffic Management  
Configuration  
enable Call Admission Control  
Optional  
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User Manual V2IU 4350 Converged Network Appliance  
System Configuration  
This section explains how to configure the 4350 to function in your IP network.  
You will configure the T1/E1 WAN interface, Ethernet interfaces, network  
addresses, DNS settings, default gateway, SNMP settings and change the  
administrative password.  
1. Physically connect to the 4350 as described in Administration of the 4350  
on page 2-4.  
A browser-based configuration GUI should appear, as shown here.  
2. Select the Network entry in the Configuration Menu.  
Configure the LAN Interface  
The 4350 provides an integrated 4 port 10/100 Mbps ethernet switch that can  
be optionally configured to support 802.1q VLANs. Integrated VLAN support  
simplifies the integration of the 4350 with existing VLAN-based networks. The  
4350 is able to receive 802.1q-tagged packets from a downstream VLAN switch  
and appropriately route and process them per its firewall rules. Packets  
received from the WAN are placed in the appropriate VLAN based on IP  
address routing.  
By default VLANs are not enabled and a single IP address is used for all 4  
ethernet ports. The configuration of this address is as follows:  
1. Enter the IP Address.  
2. Enter the Subnet Mask (e.g. 255.255.255.0).  
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Configuring the V2IU 4350  
3. Press Submit.  
Configuring VLANs in the 4350  
As depicted in the diagram below, VLANs are used to connect the 4350 to an  
Ethernet switch that has been configured to use VLANs.  
VLANid 1/2  
4350  
VLAN  
Switch  
VLANid 1/3  
VLANid 1/2/3  
(VLANid 16)  
P1  
WAN  
P2  
P3  
P4  
VLANid 1/2/3  
802.1  
EM006  
Typically, all VoIP devices are placed in the same VLAN while data devices  
are placed in a different VLAN. This is to ensure priority treatment of the VoIP  
traffic on the LAN. Note that the 4350 does not require VLANs to prioritize  
VoIP traffic; prioritization is determined by the VOS Application Layer  
Gateway, regardless of VLAN. Some important notes about VLANs:  
•
A physical LAN port will operate in either 802.1 or 802.1q mode, not both  
simultaneously  
•
•
•
The 4350 supports up to 16 VLANs  
A unique IP Subnet is assigned to each VLAN  
You can associate one or more VLANs to each LAN port operating in  
802.1q mode  
•
•
•
Traffic within a VLAN is switched among all ports with membership  
Traffic between VLANs is routed by the 4350  
The 4350 ALG can only be assigned to one VLAN id  
— Only ALG traffic is prioritized over the WAN  
— Other non-VoIP traffic in the same VLAN will not receive priority  
treatment  
•
•
A DHCP server can be enabled/disabled per VLAN  
Cisco Discovery Protocol is not supported  
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User Manual V2IU 4350 Converged Network Appliance  
•
802.1p is not currently supported  
1. Select the Network link.  
2. Select Enable VLAN support.  
3. Press Submit.  
Be careful when changing a port from 802.1 to 802.1q mode. Any 802.1 devices  
connected to that port (such as your management PC!) will loose access to the  
4350. Port 4 is only able to receive 802.1 frames, so a PC can always be connected  
to this port if the configuration of the other ports is unknown.  
Caution  
4. Select System.  
5. Select VLAN Configuration.  
6. Adjust LAN Port Membership drop-down boxes to specify 802.1 or  
802.1q mode, as desired. Press Modify.  
If changing modes, the radio-buttons or checkboxes will change from one  
style to the other.  
7. Under Add and configure a new VLAN enter a new VLAN ID, the 4350’s  
IP address within this VLAN, and the Network Mask. Press Add.  
A new VLAN entry will be added to the VLAN Configuration above.  
8. Depending on the mode of a physical port, assign it to one or more  
VLANs:  
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Configuring the V2IU 4350  
— 802.1 mode: Assign the port to any ONE VLAN.  
— 802.1q mode: Assign the port to any number of VLANs  
Perform steps 1 through 6 above for each VLAN you wish to create.  
Modify an Existing VLAN Configuration  
1. Select the Network link.  
2. Select VLAN Settings.  
3. Change the desired settings.  
4. Press the Modify to modify the VLAN. The Reset button will restore the  
input area being modified to its previous value.  
Delete an Existing VLAN Configuration  
1. Select the Network link.  
2. Select VLAN Settings.  
3. Press the trash can icon next to the VLAN you wish to delete.  
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Assign the 4350’s ALG to your Priority VLAN  
Once you have completed your VLAN configuration you must assign the 4350  
ALG to the VLAN containing your VoIP phones.  
1. Select the VoIP ALG from the main configuration menu.  
2. Use the drop down menu to assign the ALG to the VLAN ID containing  
your VoIP phones.  
3. Press Submit.  
Configure the WAN Interface  
The 10/100 Ethernet WAN port is configured as follows:  
1. Select ADSL-PPPoE if you want to connect to Internet using ADSL and  
your ISP has given PPPoE username and password. Press Submit. You  
will be prompted to enter username and password, enter these and press  
Submit again.  
2. Select DHCP if you want to get WAN side IP address using DHCP server  
available in WAN side of the network. Press Submit.  
3. Select Static IP address if you want to manually assign the IP address  
configuration to the ethernet WAN interface.  
4. Enter the IP Address.  
5. Enter the Subnet Mask (e.g. 255.255.255.0).  
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Configuring the V2IU 4350  
6. Enter the Default Gateway. This is usually the upstream router’s IP  
address. Packets destined for IP networks not known to the 4350 are  
forwarded to the default gateway for handling.  
7. Enter the Primary DNS Server. The DNS server is used by the 4350 to  
resolve domain names to IP addresses. The value entered into this field is  
provided to IP devices that use the 4350 as a DHCP server. The 4350 VoIP  
ALG also uses it if domain names are used instead of IP addresses to  
identify signaling and/or TFTP servers (see the section entitled  
“Configuring the VoIP ALG” for more details).  
8. Enter the Secondary DNS Server. This server will be used in the event  
that the primary DNS server is not reachable.  
9. Press Submit.  
To enable the T1 interface:  
1. Select Network.  
2. Select the T1 radio button.  
3. Select Submit.  
To configure the T1 parameters:  
1. Select Network.  
2. Select the T1 link next to the radio button to proceed to the T1  
Configuration page.  
The T1 Configuration menu will display, as shown here.  
The 4350 supports a wide range of T1/E1 Layer 2 configuration parameters.  
The specific values you will need must be supplied by the WAN provider.  
Each of the 4350’s configurable parameters are described below.  
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Protocol  
Display and set the T1 Layer 2 protocol. Supported protocols are:  
HDLC  
Cisco HDLC  
•
•
•
•
•
PPP  
ANSI (Frame Relay)  
CCITT (Frame Relay)  
1. Select the desired T1 protocol.  
2. Press Submit.  
Frame Relay Mode and DLCI  
When the Protocol is one of ANSI or CCITT, then additional Frame Relay  
configuration parameters are required.  
The Frame Relay Mode is usually set to DTE for the customer premises.  
The Frame Relay DLCI is set by the WAN provider and identifies the far-end  
device across the Frame Relay network. This DLCI can also be used to carry  
voice traffic only by enabling the Secondary DLCI for data.  
Most installations will use a single DLCI for both voice and data traffic.  
However, in instances where the network will provide a different quality of  
service based on DLCI number it is desirable to place all voice traffic on one  
DLCI and then configure a second DLCI for data. In this case, the Secondary  
DLCI is configured as follows:  
1. Select Network.  
2. Select the T1 link next to the radio button to proceed to the T1  
configuration page.  
3. Select Enable in the Frame Relay Secondary Settings section of the page.  
4. Enter the Secondary DLCI, IP Address, Network Mask and Gateway for  
the data traffic using the Secondary DLCI.  
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Configuring the V2IU 4350  
Timing  
Display and set the clock timing source for the T1/E1 interface. The timing can  
be either derived from the network (External) or provided to the T1 interface  
by the V2IU (Internal). With a carrier-provided T1, the timing is usually  
derived from the network (External, the default setting).  
Mismatched timing modes can result in WAN connectivity but with intermittent data  
loss.  
Warning  
Payload Loopback  
Display and set the loopback setting. During T1 line testing the local interface  
can be set to Loopback to allow the network provider to verify connectivity  
and line quality. For normal operation the setting should always be No  
Loopback (the default setting).  
Configure the DHCP Server  
The 4350 can act as a DHCP server granting IP addresses to PCs, workstations,  
servers or voice devices (IP phones, IADs or softphones) connected to its LAN  
interfaces. DHCP is a protocol that enables IP devices to obtain temporary or  
permanent IP addresses (out of a pool) from centrally administered servers.  
The user can configure blocks of IP addresses, a default gateway, DNS servers,  
NTP server address, Time offset from NTP value, WINS address and  
TFTP/FTP server name that can be served to the requesting IP devices.  
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User Manual V2IU 4350 Converged Network Appliance  
In addition the 4350 will provide its LAN IP address in DHCP user options 150  
and 151 for use by IP phones. Some IP phones use these values for  
configuration of their TFTP server and MGCP control server addresses.  
The DHCP server in the 4350 should not be used if a DHCP server already exists in  
the same subnet as the 4350. Also, it is recommended that you assign static IP  
addresses for common-access devices such as network printers or fax machines.  
Note  
You can also enable or disable the 4350 DHCP server on a per VLAN basis.  
1. Select DHCP Server.  
2. If you are using VLANs select the desired VLAN ID from the drop down  
menu.  
3. The default value for the DHCP server is disabled. Click the top checkbox  
to enable or disable the internal DHCP server (default is disabled). If you  
are using VLANs select the desired VLAN ID.  
4. Enter the Lease Duration.  
The lease duration is the amount of time in days that an IP device may use  
an assigned IP address before requesting that it be renewed. The default  
value is 7 days and the valid range of input is 1 to 30 days.  
5. Enter the Subnet Mask.  
This is the subnet mask that will be sent via DHCP to the requesting IP  
devices.  
6. Enter the DHCP IP Addresses.  
This is the pool of IP addresses that will be provided to the requesting IP  
devices. You can enter both individual IP addresses or a range of  
addresses using the following format:  
192.168.1.2 (single address)  
192.168.1.4-10 (address range 192.168.1.4 through 192.168.1.10)  
The range format can only be used for class C addresses (those with a subnet  
mask of 255.255.255.0).  
Note  
7. Enter the Time Offset (DHCP user option 2).  
8. Set the time offset in hours from UTC for your local location. This value is  
optional; if supplied, it will be delivered to clients.  
9. Enter the NTP Server Address (DHCP user option 42).  
This is the IP address of a Network Time Server. This value is optional; if  
supplied, it will be delivered to clients.  
10. Enter the WINS Address.  
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Configuring the V2IU 4350  
If you are not using WINS leave this field blank.  
Note  
The Windows Internal Naming Service (WINS) is a service that keeps a  
database of computer name-to-IP address mappings so that computer  
names used in Windows environments can be mapped to IP addresses.  
The WINS Address is the IP address of the WINS server in your network.  
This value will be delivered to clients.  
1. Enter the TFTP/FTP Server Name (DHCP user option 66).  
Some IP phones use this setting to locate the TFTP or FTP servers which  
contain the phone software image used during boot. By default this option  
is the same as the TFTP server on the VoIP ALG page.  
2. Primary and Secondary DNS  
The primary and secondary DNS values come from those set under the  
WAN interface configuration, see Configure the WAN interface. These  
values will be delivered to clients.  
3. Default Gateway  
The default gateway is automatically set to the 4350’s LAN address, see  
Configure the LAN interface. This value will be delivered to clients.  
4. Press Submit.  
Delete a DHCP IP Address  
1. Select DHCP Server.  
2. To delete an IP address or a range of IP addresses highlight an entry or  
range of entries in the DHCP IP Addresses list and press the Delete key  
on your keyboard.  
3. Press Submit.  
Disable The DHCP Server  
4. Select DHCP Server.  
5. Uncheck\ the Enable DHCP Server checkbox.  
6. Press Submit.  
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User Manual V2IU 4350 Converged Network Appliance  
Configure Hostname, SNMP and Remote Logging  
The 4350 can be managed remotely by an SNMP network management system  
such as HP Openview. The 4350 supports SNMPv1 or SNMPv3 and MIB-II  
(RFC1213). All MIB-II variables are read only. The MIB variables sysContact  
and sysLocation are set by the web GUI.  
Messages generated by the 4350 can be sent to a remote log server.  
The configuration screen is reached through the Configuration Menu:  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
Configure SNMP  
1. Select the Enable SNMP v1 or v3 checkbox. If using SNMPv1 enter the  
Read-Only Community. If using SNMPv3 enter the User Name,  
Passphrase and Security method.  
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Configuring the V2IU 4350  
2. Enter the System Location.  
This is a comment string that can be used to indicate the physical location  
of the 4350. By default, no value is set.  
3. Enter the System Contact.  
This is the administrative contact information for the 4350. By default, no  
value is set.  
4. Enter the SNMP Port.  
This is the port that the 4350 uses for SNMP communications with the  
network management system. The default is 161.  
5. Press Submit.  
Disable SNMP  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Uncheck the Enable SNMP checkbox.  
5. Press Submit.  
Configure Remote System Logging  
The 4350 can be configured to log system messages to an external syslog  
server.  
1. Select the Enable Remote System Logging checkbox.  
2. Enter the IP address of the Remote Syslog Host.  
By default messages are sent to the remote host on port 514. This port can  
be changed by using the syntax ADDRESS:PORT.  
3. Press Submit.  
Disable Remote System Logging  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Uncheck the Enable Remote System Logging checkbox.  
5. Press Submit.  
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Configure a local Hostname  
A locally configured hostname is useful for remote management. This name  
can appear as the identifier string for the 4350 on a system management  
console.  
>> Enter a host name in the field provided.  
Enable Mean Opinion Scoring (MOS)  
The 4350 produces useful statistics on a per call basis that can be written to  
syslog. These include MOS, jitter, latency, packet loss and much more.  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Select Enable MOS.  
Set MOS Threshold  
You can define a minimum MOS value in the 4350 such that a message will be  
sent to syslog when the measured MOS value drops below the minimum. This  
is useful when for monitoring a particular location for call quality problems  
and enables pro-active resolution of problems that negatively affect call  
quality.  
1. Select System.  
2. Select System Overview.  
3. Select Services Configuration.  
4. Enter the minimum MOS threshold in the Set MOS threshold field.  
5. Press Submit  
Change the Administration Password  
We strongly recommend that you change the default password for the root  
administrative account using the following steps:  
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Configuring the V2IU 4350  
The new password must be between 6 and 20 characters in length. Any  
combination of alpha and numeric characters is accepted.  
Note  
1. Enter the password you chose in step C again in the Confirm Password to  
ensure that there were no mistakes in the initial entry.  
2. Press Submit.  
Read-only User  
This feature works by creating a new user with read-only access to the system.  
All information is displayed in a non-changeable form. Information changed  
in entry boxes cannot be submitted. In fact, most Submit and OK buttons are  
not visible.  
Note: You must have administrator privileges and log in as an administrator  
to change read-only user.  
Enabling a Read-only User  
To enable a read-only user, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click Network.  
Note: You must have administrator access and log in as an administrator  
to change read-only user.  
2. Scroll down to the area of the screen shown below.  
3. Click changed. The following window screen appears:  
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Note: All open web browsers must be closed when you change between  
administrative user “root” and read-only “rouser.”  
4. Enter a new password. The password must be a minimum of six  
characters long.  
4. Re-enter the new password to confirm it.  
5. Click Submit.  
Now when you access the system using this user name (rouser) and password,  
all fields are read-only.  
Subinterfaces  
The Subinterfaces feature allows a system administrator to assign additional  
IP addresses to interfaces. These are sometimes referred to as aliases or  
loopback interfaces. An additional address may be assigned to the system’s  
WAN interface to support, for example, another management IP address.  
How Subinterfaces Works  
A common use for subinterfaces is forwarding a public subnet. A subinterface  
may be created to support a subnet forwarded through the Polycom V2IU  
4350. When forwarding a subnet through the Polycom V2IU 4350, it is  
necessary to assign an address for this subnet to the system to act as the  
subnet's gateway. To configure forwarding rules, use the Forwarding Rules  
submenu under the Firewall configuration link.  
When applied to the WAN/Provider interface, these addresses are protected  
by the same firewall policy that is applied to the WAN/Provider address.  
Several other features in the system automatically create Subinterfaces. VRRP  
(if supported) and Static NAT automatically create Subinterfaces.  
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Configuring the V2IU 4350  
When viewing the Network Information page, Subinterfaces are designated in  
the Interface Information section with the device name and number, separated  
by a colon (for example, eth0:100).  
Configuring Subinterfaces  
To configure subinterfaces, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click Network.  
2. Click Subinterfaces. The window shown below opens.  
3. On this screen, complete the following information:  
•
•
IP Address is the address to be assigned to the subinterface.  
Netmask is the network mask to use for the address. If several addresses  
are applied to an interface and these addresses are in a common network,  
they must use a common subnet. The system does not support  
supernetting.  
•
Interface is the port where the subinterfaces will be configured.  
4. When you have finished entering this information, click Add. The  
following popup appears:  
5. Click OK. The new subinterfaces entry appears on the Subinterfaces  
window in the list area.  
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User Manual V2IU 4350 Converged Network Appliance  
ToS Byte Setting  
Since the Internet itself has no direct knowledge of how to optimize the path  
for a particular application or user, the IP protocol provides a limited facility  
for upper layer protocols to convey hints to the Internet Layer about how the  
trade-offs should be made for the particular packet. This facility is the “Type  
of Service” or ToS facility.  
ToS settings allow the service provider to prioritize time sensitive traffic, such  
as voice plus video to ensure minimized packet loss and delay through their  
network. When providing end-to-end QOS, it is important that the voice plus  
video traffic be placed in the correct queues to deliver a higher QOS than  
regular traffic. Regular traffic, that is not time sensitive, can be delayed with  
little or no indication to the user, while the slightest delay in voice plus video  
can cause auditable differences. The ToS byte setting helps prioritize traffic  
going to the WAN so a provider can prioritize the traffic correctly in its  
network.  
Although the ToS facility has been a part of the IP specification since the  
beginning, it has been little used in the past. However, the Internet host  
specification now mandates that hosts use the ToS facility. Additionally,  
routing protocols (including OSPF and Integrated IS-IS) have been developed  
which can compute routes separately for each type of service. These new  
routing protocols make it practical for routers to consider the requested type  
of service when making routing decisions.  
How the ToS Byte Setting Works  
For all RTP traffic (voice and video), the Polycom V2IU 4350 marks the ToS  
byte in the IP header as “High Priority,” and strips (set to 0) the ToS byte for  
all other traffic. Unchecking the “Enable ToS Byte Stripping” option means  
that the ToS byte will not be stripped from non-RTP traffic, but will remain  
unchanged.  
Note: For most situations, you should leave this setting as it is. Only change it  
if your provider indicates that you should do so.  
Viewing or Changing the ToS Byte Setting  
To view or change the ToS byte setting, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click Traffic Shaper.  
2. Scroll down the area of the screen shown below.  
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Configuring the V2IU 4350  
3. For most situations, you should leave this setting as it is. Only change it if  
your provider indicates that you should do so. If your provider indicates  
that you need to change the ToS byte setting, that provider should also  
provide the other parameters required on this screen.  
4. If you have changed the values, click Submit to activate the new settings.  
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H.323 Configuration  
To access the H.323 Settings page, select VoIP ALG > H.323 in the Configura-  
tion Menu.  
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Configuring the V2IU 4350  
The H.323 Settings page has the following areas:  
•
•
•
•
•
•
•
•
Gatekeeper Mode  
WAN/Provider-side gatekeeper mode settings  
LAN/Subscriber-side gatekeeper mode settings  
Embedded gatekeeper mode settings  
LRQ Size  
Default Alias  
Stale Time  
Multicast Messages  
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•
•
H.460.18 Support  
Alias Restrictions  
In the Gatekeeper mode area, select one of the following modes:  
Item  
Description  
None  
H.323 is disabled.  
WAN/Provider-side  
gatekeeper mode  
Specifies that the system will forward all client RAS  
messages to the gatekeeper. If this is selected, you must  
configure the settings in the WAN/Provider-side  
gatekeeper mode settings area.  
LAN/Subscriber-side  
gatekeeper mode  
Specifies that the system will act as a gatekeeper. If this  
option is selected, you must configure the settings in the  
LAN/Subscriber-side gatekeeper mode settings area.  
Peering-Proxy mode  
Allows calls to be forwarded to other endpoints based on  
the information sent from the endpoints. All the  
information about routing the call must be sent as part of  
the request or prefixes must be configured.  
Embedded gatekeeper Provides gatekeeper functions and accepts endpoint  
mode  
registrations. If this option is selected, you must configure  
the settings in the Embedded gatekeeper mode settings  
area.  
If WAN/Provider-Side Gatekeeper mode is selected, you must configure the  
following parameters:  
Item  
Description  
WAN/Provider-side GK  
address  
Specifies the IP address of the gatekeeper  
Modify Time-To-Live  
Allows you to override the value for time-to-live returned  
by the gatekeeper before forwarding the response to the  
endpoint.  
New Time-To-Live  
Specifies how long an endpoint's registration should be  
valid.  
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If LAN/Subscriber-Side Gatekeeper mode is selected, you must configure the  
following parameters:  
Item  
Description  
LAN/Subscriber-sideGK Enter the IP address of the gatekeeper.  
address  
Allow public IP in LCF  
Select the checkbox if the gatekeeper has been deployed  
with multiple outbound proxies and must decide which  
proxy to use based on the IP address returned in the LCF.  
This is an advanced configuration option and should  
usually not be selected.  
If Embedded Gatekeeper is selected, you must configure the following  
parameters:  
Item  
Description  
Time-to-Live(s)  
Enter a time in seconds. This setting controls how  
long an endpoint’s registration should be valid. At  
the end of this period the endpoint sends another  
registration request.  
Prevent calls from  
Blocks unregistered LAN-side endpoints from  
unregistered endpoints: making calls through the device.  
In the LRQ Size area, you can limit the number of source aliases in a  
forwarded LRQ message to a maximum of two to allow interoperability with  
gatekeepers that cannot handle more than two source aliases.  
In the Default Alias area, you can specify a default alias to be added to incom-  
ing calls without a destination message in the Q.931 Setup message. This alias  
allows the embedded gatekeeper or a LAN/Subscriber-side gatekeeper to  
route the call to a default endpoint. Enter a default alias and select one of the  
following types:  
•
•
E.164  
H.323  
In the Stale Time area, you can arrange to delete clients that have not sent any  
registration requests for the specified interval. This area includes the  
following configurable parameters:  
Item  
Description  
Delete stale clients  
Stale time (m)  
Select this checkbox to enable the stale timer feature.  
Specify the length of the interval in minutes.  
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Some RAS messages can be multicast in order to automatically detect gate-  
keepers. In the Multicast Messages area, you can enable listening to multicast  
messages. This area includes the following configurable parameter:  
Item  
Description  
Listen to multicast  
messages  
Select this checkbox to enable listening to multicast  
messages.  
In the H.460.18 Support area, you can configure H.460.18 support. This allows  
the system to do NAT/Firewall traversal for clients behind NAT or firewall  
devices. This area includes the following configurable parameters:  
Item  
Description  
Disabled  
Disables H.460.18 support.  
Enables H.460.18 support.  
Enabled  
Keep-alive time(s)  
Specifies the keep-alive time if H.460.18 support is  
enabled.  
In the Alias Restrictions area, you can set a limit on the number of aliases that  
are allowed to register with the system. If this number is exceeded when a cli-  
ent tries to register, the registration is rejected. This area includes the follow-  
ing parameter:  
Item  
Description  
Max Aliases  
Enter the maximum number of allowed aliases. If the value is set  
to 0, the maximum is not enforced.  
The H.323 Settings page includes the following two buttons:  
Item  
Description  
Submit  
Reset  
Applies the settings configured on this page.  
Clears all fields and selections and allows you to enter new  
information.  
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Configuring the V2IU 4350  
H.323 Activity  
To access the H.323 Activity page, select VoIP ALG > H.323 Activity in the  
Configuration Menu.  
The H.323 Activity page is a read-only page that shows the following infor-  
mation:  
•
•
•
•
•
Current time  
WAN Gatekeeper status  
Current payload bandwidth  
Estimated total bandwidth  
Activity log of recent H.323 events  
H.323 Alias Manipulation  
Alias manipulation is performed immediately when a message (such as an  
ARQ, LRQ or a Setup) is received. Any matching pattern is replaced with the  
specified string, allowing you to replace characters or strings that are hard or  
impossible to dial on certain endpoints. Normal call look-up is performed  
following alias manipulation.  
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To access the H.323 Alias Manipulation page, select VoIP ALG > H.323  
>Alias Manipulation in the Configuration Menu.  
This page includes the following areas:  
Item  
Description  
Destination  
H323-ID or  
E.164 Alias  
Modification  
table  
Lists alias manipulation rules.  
Rules are executed in the order in which they are listed. Use the  
arrows to move entries up and down, or use the Index field to  
specify where a new or edited rule falls in the list.  
Add a rule  
Allows you to add new prefixes to the Prefix Routing and  
Gatekeeping Neighboring table.  
Item  
Description  
Action  
Pattern  
Indicates whether the rule is to be added or edited.  
Specifies the pattern to be matched. See <l_link>“Regular  
Expressions” on page 39 for details on valid patterns.  
Index  
Determines the order in which the rule is scanned in the  
Destination H323-ID or E.164 Alias Modification table. To add a  
rule between two rules with consecutive indexes (n and m), use  
the higher index (m).  
Replace  
Specifies the string that will replace the matched pattern.  
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The H.323 Alias Manipulation page includes the following buttons:  
Item  
Description  
Commit  
Reset  
Applies the settings configured on this page.  
Clears all fields and selections and allows you to enter new  
information.  
H.323 Neighboring  
Neighboring and prefix routing can be used to route calls based on a match-  
ing prefix in the destination alias of the call. The call decision is made follow-  
ing alias manipulation and acts on the modified string, similar to other call  
lookup processes such as registered client look-up. Each prefix is associated  
with a domain name or IP address that is used in the event that the prefix  
matches.  
To access the H.323 Neighboring page (formerly the Prefix Routing page),  
select VoIP ALG > H.323 > Neighboring in the Configuration Menu.  
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This page includes the following areas:  
Item  
Description  
Prefix Routing Lists rules for forwarding incoming calls based on their dialed  
and  
alias.  
Gatekeeper  
Neighboring  
table  
Rules are executed in the order in which they are listed. Use the  
arrows to move entries up and down, or use the Index field to  
specify where a new or edited rule falls in the list.  
Add a prefix  
Allows you to add new prefixes to the Prefix Routing and  
Gatekeeper Neighboring table.  
Item  
Description  
Action  
Prefix  
Indicates whether the rule is to be added or edited.  
Specifies the prefix pattern to be matched against the dialing  
string. See <l_link>“Regular Expressions” on page 39 for details  
on valid patterns.  
Index  
Strip  
Determines the order in which the rule is scanned in the Prefix and  
Gatekeeper Neighboring table. To add a rule between two rules  
with consecutive indexes (n and m), use the higher index (m).  
Indicates whether the matching prefix is stripped from the dialing  
string.  
Add  
Specifies a string to be prepended to the dialing string.  
Neighbor  
Determines whether a location request (LRQ) is sent when this  
prefix matches.  
•
•
If enabled, the prefix becomes a neighboring statement.  
If disabled, the incoming Q.931 Setup is forwarded to the given  
address without a preceding LRQ.  
This field is used for interoperability with other gatekeepers that  
may not accept a Setup without a preceding LRQ.  
Local Zone  
Address  
Provides compatibility with remote gatekeepers that are  
configured to accept LRQs only from sources that match its  
configured remote zone. If a gatekeeper is configured to accept  
requests only from a known source, enter the zone in this field.  
Specifies the IP address or domain name of the device to which  
the call is to be forwarded.  
The H.323 Neighboring page includes the following buttons:  
Item  
Description  
Commit  
Reset  
Applies the settings configured on this page.  
Clears all fields and selections and allows you to enter new  
information.  
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Configuring the V2IU 4350  
Regular Expressions  
Alias manipulation patterns and prefixes use regular expressions to match a  
string in the destination alias. A regular expression can be a string of literal  
characters to match or a set of special expressions.  
Alias manipulation patterns can match a sub-string at any location and  
number of times within the alias. Prefixes are always searched from the left of  
the alias and cannot match a middle part or the end of the alias.  
Regular expressions are listed in <l_link>Table 1 and <l_link>Table 2 lists  
some example expressions.  
Table 1 Regular Expressions  
Symbol  
Description  
.
Matches any single character.  
[]  
Matches any single character listed between the []. For example,  
[abc], [123]. If the characters are separated by a -, all characters  
between the two are matching, e.g. [a-z], [0-9]  
()  
Matches the literal string given, e.g. (abc)  
|
Matches the block on either side of the |, e.g. a|b.  
Matches 0 or 1 of the preceding block.  
?
*
Matches 0 or more of the preceding block.  
+
Matches 1 or more of the preceding block.  
\
Escapes the special meaning of the next character.  
Matches exactly 'a' numbers of the preceding block.  
Matches 'a' or more of the preceding block.  
Matches between 'a' and 'b' (inclusive) of the preceding block.  
{a}  
{a,}  
{a,b}  
Table 2 Example Regular Expressions  
Expression  
100  
Description  
Matches the string 100.  
Matches 555123 or 123.  
Matches 408 or 555.  
(555)?123  
(408|555)  
555[0-9]{3}  
#
Matches 555 followed by exactly 3 digits.  
Matches the character '#'.  
\*  
Matches the character '*'. Note that '*' by itself is a regular  
expression and must therefore be escaped with a '\' to match the  
character itself.  
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Forwarding Rules  
Forwarding Rules allows a system administrator to forward data traffic for a  
subnet from one interface to another, overriding the Firewall’s default drop  
rules.  
Allowing a subnet to be forwarded is commonly used when servers with  
public addresses are placed behind the system. Configuring the network in  
this way allows the system to manage and prioritize bandwidth, sharing it  
between the VoIP services and the servers.  
How Forwarding Rules Works  
When forwarding, one address from the forwarded range of addresses must  
be assigned to the rule's output interface. The Polycom V2IU 4350 uses this  
address to act as a gateway router for the subnet. The address may be  
assigned using the Subinterfaces page.  
Note: The subnet and forwarded addresses are not protected by the firewall.  
A similar method for forwarding traffic is provided by Proxy ARP. Proxy ARP  
is used to “bridge” addresses within a single subnet range from one interface  
to another. Often this is used to bridge and forward a public address to the  
protected side of the system without having to subnet the public address  
range. Proxy ARP does not require an additional gateway address on the sys-  
tem for the subnet, but does not allow port and protocol filtering for for-  
warded data.  
Example  
In this example:  
•
The ISP has supplied two separate subnets to the customer:  
— A small one (2 hosts) for the WAN link  
— A large one (254 hosts) for a bank of servers  
•
•
67.40.41.2 is the WAN IP address for the Polycom V2IU 4350  
NAT is a private IP range of 192.168.1.xxx using the WAN address for PCs  
and Phones  
•
On the LAN side of the Polycom V2IU 4350 are the following:  
— Private IP subnet (192.168.1.xxx)  
— Public IP subnet (67.40.40.xxx)  
This is shown below.  
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Configuring the V2IU 4350  
Configuring Forwarding Rules  
To configure address forwarding rules, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click Firewall.  
2. Click Forwarding Rules. The window shown below opens.  
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3. On this screen, complete the following information:  
•
•
•
•
•
IP Subnet: The subnet to be forward through the firewall from the Input  
Interface to the Output Interface.  
Netmask: The network mask to apply to the IP Subnet to create the range  
of IP addresses that are forwarded through the firewall.  
Input Interface: The interface where data is received that is destined for  
the forwarded subnet (destination address(es)).  
Output Interface: The interface where data is received that is sent from the  
forwarded subnet (source address(es)).  
Protocol: The following protocols are used:  
— UDP: for the specified network, allows the specified UDP port or port  
range to pass through the system  
— TCP: for the specified network, allows the specified TCP port or port  
range to pass through the system  
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— Any: for the specified network, allows all ports and protocols through  
the system. No ports are required because not all protocols support  
the concept of ports.  
•
Port or Port Range: The port number or port range allowed through the  
system when UDP or TCP are selected. A port range is specified by  
separating the starting and ending ports with a colon ':' (for example,  
22:80). The ports parameter is not supported when you select Any  
protocol because not all protocols support the concept of ports.  
4. When you have finished entering this information, click Add.  
5. Click OK. The new forwarding entry appears on the Forwarding Rules  
window in the list area.  
Peering Proxy  
H.323 prefixes can be used to route calls based on a matching prefix in the  
destination alias of the call. Each prefix is associated with a domain name or IP  
address to send the call to in case the prefix matches.  
The prefixes are searched in order, that is, the first prefix is tried first, and then  
the next one on the list until the system finds a matching prefix. This means  
that if there are multiple matching prefixes, the first one is used.  
How Peering Proxy Works  
The Polycom V2IU 4350 supports the concept of an H.323 Peering Proxy. This  
function provides advanced security layers or peering points within the  
network where a security layer is needed. Peering Proxy allows network  
providers to add internetworking connections between their “trusted”  
network and an unknown network. This topology hides their trusted network  
and the Stateful packet inspection Firewall provides the policies to ensure  
security. You can add Peering Proxies in series with one another to push the  
core H.323 networking infrastructure to meet individual security  
requirements.  
The illustration below shows a sample diagram with dial plan and call flow  
examples. It is a snapshot of how the Peering Proxy can be deployed. Peering  
Proxy however, is not limited to this specific scenario, so contact your Polycom  
representative to discuss specific network requirements for full Peering Proxy  
support.  
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Note: A minimum configuration for Peering Proxy would be for inbound only  
prefixes, since there may be many endpoints to statically route calls to. There  
might also be a master gatekeeper to which all endpoints are registered. In this  
case, you would only need 1 prefix pointing to the master gatekeeper and let  
that gatekeeper signal the other endpoints directly.  
In the example above, the Polycom V2IU 4350 Peering Proxy is installed in  
“Private Video Network A and B,” a peering point into this network. This  
network could have additional peering points to allow topology spreading of  
network resources. However, this example shows only a single point. Peering  
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Proxy provides an access point into this network and is responsible for the  
E.164 dial plan using NANP (North American Numbering Plans or NAP’s).  
The NAP’s in this case are 831 and 408.  
Dial plan integrity is required to insure proper routing of prefix's. This means  
that if users are to dial into your network, they could be required to enter a  
“Prefix” on their V2IU with a corresponding destination IP. If the user was to  
dial another user NOT destined to your network with the same beginning  
prefix, the prefix configured on this V2IU would create a prefix match and the  
call would route incorrectly. The call routes to the destination defined in the  
prefix and not to the intended endpoint. The example shows “Private Video  
Network A's Peering Proxy” with an inbound prefix defined as 8315…… Any  
inbound call that matches 8315 with any 6 digits creates a prefix match and  
sends the call to 10.10.11.1. Refer to “Regular Expressions” in the Info button  
on the GUI interface for information on all the methods for defining prefixes.  
Private Video Network A is one example of a V2IU configured in “LAN Side  
Gatekeeper” mode with an ANNEX O dial method to dial “Off Net.” Internal  
“On Net” endpoints registered to the LAN Side Gatekeeper will dial E.164  
only. This allows any location to place calls to any location with an ANNEX O  
dial plan, that is, E.164@WAN_IP or other V2IU's deployed on the network. In  
this example a Peering Proxy has been deployed to allow dialing ingress and  
egress to the Public Internet. At each V2IU location required to egress, the  
Public Internet requires a “Prefix” to be configured. This allows that location's  
endpoint to dial “Off Net” to the Public Internet. This prefix can be configured  
to any digit and may be part of the externally dialed E.164 in the  
E.164@WAN_IP, that is, to reach site A by dialing [email protected]  
where the prefix is defined as 415* or 415……. In this example, a “9” was  
chosen. The prefix is then mapped to the LAN interface of the Peering Proxy  
10.10.11.1. The dial string is now [email protected] and a strip rule for  
the prefix is applied. This is needed to route the call at the destination  
correctly. If the Site C V2IU does not strip the “9”, the destination V2IU fails the  
call with a “No Registered Client” message (call failures can be viewed under  
the “H323 Activity” page in the GUI), since the “9” becomes part of the E.164.  
If you choose a prefix that matches the destination E.164, set Site A’s V2IU to  
NOT strip matching prefixes.  
NOTE: In this illustration E.164@WAN_IP was used as an example. Peering  
Proxy and all V2IU's support user@host ANNEX O dialing methods, for  
example [email protected] or [email protected] or [email protected] with a DNS SRV record  
configured to point to an A record for the WAN IP of the V2IU.  
The following sections demonstrate the Dial Plan for ingress and egress calls  
to Private Video Network A as shown in the illustration.  
Outbound from Site C to Site A  
Site C dials an endpoint located at Site A: [email protected]. The  
PathNavigator receives the call and generates a Q.931setup to the V2IU for that  
subnet. The V2IU processes the Q.931 setup from the calling endpoint. The  
V2IU looks for a prefix match. In this case, the “9” creates a match. The “Strip  
Matching Prefix” rule is applied, the “9” is stripped, and the call is routed to  
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the Peering Proxy IP 10.10.10.1. The Peering Proxy applies the same rule set, in  
this case, NO matching prefix is found and ANNEX O dialing is applied. The  
call is now routed to Site A's V2IU. The call is forwarded to the LAN Side  
PathNavigator where the registered client with the E.164 of 4155551000 is  
located and the call is gatekeeper routed to the called endpoint.  
Inbound from Site A to Site C  
Site A dials: [email protected]. (The destination IP is the Peering Proxy  
WAN IP address.) The Peering Proxy is configured with prefix 8315……and is  
mapped to the WAN IP of the V2IU 10.10.11.1. As explained earlier, the prefix  
could be 831* or 83…… and so on, depending upon dial plan requirements.  
The PathNavigator receives the Q.931setup from the endpoint and forwards  
the call to the V2IU for that subnet. The V2IU receives the Q.931 setup from the  
calling endpoint. The V2IU looks for a prefix match, finds NO matching prefix,  
and ANNEX O dialing is applied. The call is now routed to the Peering Proxy  
IP 67.40.40.4. The Peering Proxy receives the Q.931 setup and looks for a prefix  
match, in this case “8315” creates a match. The Peering Proxy now changes the  
destination IP to 10.10.11.1 and routes the call to Site A’s V2IU. The Q.931 setup  
is forwarded to the LAN Side PathNavigator where the registered client with  
the E.164 of 8315551000 is located, and the call is gatekeeper routed to the  
called endpoint.  
Outbound from Site C to Site D  
Site C dials an endpoint located at Site D: [email protected]. The  
PathNavigator receives the call and generates a Q.931 setup to the V2IU for  
that subnet. The V2IU processes the Q.931 setup from the calling endpoint. The  
V2IU looks for a prefix match, in this case the “9” creates a match. The “Strip  
Matching Prefix” rule is applied, the “9” is striped, and the call is routed to the  
Peering Proxy IP 10.10.10.1. The Peering Proxy applies the same rule set, in this  
case NO matching prefix is found, and ANNEX O dialing is applied. The call  
is now routed to the Peering Proxy for “Private Video Network B” IP  
68.30.30.4. The Peering Proxy receives the Q.931 and looks for a prefix match.  
In this case, “5125” creates a match. The Peering Proxy now changes the  
destination IP to 172.16.2.1 and routes the call to Site D's V2IU. The V2IU is  
configured for Embedded Gatekeeper Mode. In this mode, the endpoint is  
directly registered and an E.164 registered client match is made. The call is  
then routed to the called endpoint.  
Outbound from Site D to Site B  
Site D dials an endpoint located at Site B: [email protected]. The V2IU  
Embedded Gatekeeper is configured with a prefix of “9” to point to Peering  
Proxy 172.16.1.1. The V2IU looks for a prefix match. In this case, the “9” creates  
a match. The “Strip Matching Prefix” rule is applied, the “9” is striped, and the  
call is routed to Peering Proxy IP 172.16.1.1. The Peering Proxy applies the  
same rule set. In this case NO matching prefix is found and ANNEX O dialing  
is applied. The call is now routed to Site B. The V2IU is configured for  
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Embedded Gatekeeper Mode. In this mode, the endpoint is directly registered,  
an E.164 registered client match is made, and the call is routed to the called  
endpoint.  
Outbound from Site C to Public IP Endpoint  
Site C dials the public endpoint: [email protected]. The PathNavigator receives the  
call and generates a Q.931 setup to the V2IU for that subnet. The V2IU receives  
the Call setup from the calling endpoint, and the V2IU looks for a prefix match.  
In this case, the “9” creates a match. The “Strip Matching Prefix” rule is  
applied, the “9” is striped, and the call is routed to the Peering Proxy IP  
10.10.10.1. The Peering Proxy applies the same rule set, in this case NO  
matching prefix is found, and direct IP dialing is applied.  
Inbound from Public IP Endpoint to Site C  
Public IP endpoint is NOT registered to a gatekeeper and must dial an IP+EXT  
to reach Site A’s endpoint,. In this case, the IP address is 67.40.40.4 and EXT  
8315551000. The Peering Proxy receives the call and looks for a prefix match.  
In this case “8315” creates a match. The Peering Proxy now changes the  
destination IP to 10.10.11.1 and routes the call to Site A’s V2IU. The Q.931 setup  
is forwarded to the LAN Side PathNavigator where the registered client with  
the E.164 of 8315551000 is located, and the call is gatekeeper routed to the  
called endpoint.  
Configuring Peering Proxy  
To configure peering proxy, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click VoIP ALG.  
2. Click H.323. The window shown below opens.  
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3. On this screen, check “Peering-Proxy mode”.  
4. Scroll to the bottom of the window and click Submit.  
Adding an H.323 Prefix Entry  
You can add prefixes by entering the prefix string and the target address.  
To add an H.323 prefix entry, use the following steps:  
1. Using the configuration graphical user interface, from the Configuration  
Menu on the right-hand side, click VoIP ALG.  
2. Click H.323 Prefixes. The window shown below opens.  
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The prefix routing table shows all currently configured prefixes. The  
prefixes are searched in the order they are entered. Each prefix can be  
moved up or down in the list. You can select and delete prefixes.  
3. To strip a matching prefix, select the checkbox and click Submit.  
If you enable this, all matching prefixes are stripped from the destination  
alias before the call is forwarded.  
4. To add an entry, enter the prefix and the address.  
The prefix string can be a regular expression as described above. The  
target address can be a domain name or an IP address.  
5. Click Add. The new entry appears in the table.  
Clients List Lock  
Client List lockdown allows you to prevent new clients from registering. This  
is done as follows:  
•
Creating a client, as follows:  
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— Manually entering all clients that are allowed to use the system  
— Running the system without the Client List lockdown feature until all  
desired clients have registered  
•
Enabling this feature.  
This feature is useful for lists involved with 911 usage.  
When this feature is in effect, any message from an unauthorized SIP client  
will be rejected with a “403 Forbidden” response. MGCP messages will be  
discarded.  
Enabling the Clients List Lock  
To configure clients list lock, use the following steps:  
6. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click VoIP ALG. The following window  
appears.  
3. On this screen, check “Enable Client List lockdown”.  
4. Scroll to the bottom of the window and click Submit.  
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Configuring the V2IU 4350  
H.323 Activity Monitor  
The H.323 Activity Monitor shows any recent H.323 events that may be of  
interest to the administrator of the system. The information appears in three  
columns:  
•
•
•
Event/Time  
Source  
Destination  
Following this information are a number of lines with event specific informa-  
tion such as call-id, duration, call-status, and so on.  
Abnormal events have their event specific information listed in red.  
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Type of Events  
The events that may currently be listed in the activity monitor are as follows:  
•
Bandwidth change - the endpoint requested a change of the bandwidth  
used for its call, only sent if the bandwidth management is enabled.  
•
Call Setup – Only sent if the call was ‘successfully’ established. A call is  
successfully established if the H.245 media negotiation connection was  
established.  
•
•
Call Termination – Sent when a call terminates. You can have a call  
termination event without a call setup event, for example, a failed call that  
doesn’t reach the H.245 established state will not cause a call setup event,  
but only a call termination event.  
Registration Reject – Sent when a registration was rejected. This includes  
the authority that rejected the registration (our side or the gatekeeper (only  
in WAN GK mode) as well as a text reason for the rejection.  
•
•
•
•
Gatekeeper reachability changed (only in WAN GK mode). Gatekeeper  
status toggled from reachable to unreachable or vice versa.  
Location Request – Received a location request from a neighboring  
gatekeeper.  
Location Confirm – Sent, or forwarded, a location confirm to a previous  
request.  
Location Reject - Sent, or forwarded, a location reject to a previous  
request.  
Call Status  
The call status shows the last state of the call at the time of the event. Each call  
progresses through a number of states when being established. If a call fails,  
the call-status in the call termination event can help trouble-shoot the cause of  
the call failure. For example, if the call fails at the “Caller/Callee admission  
request received” state, there may be a problem communicating with the  
gatekeeper, whereas if the call fails at the “Attempting to establish outgoing  
Q.931 TCP connection” state, the remote endpoint may not be reachable.  
The following are call status messages:  
•
“Caller admission request received”  
Received an admission request from the source endpoint and forwarded it to  
the gatekeeper.  
•
“Caller admission response received”  
Received an admission response (either confirm or reject) from the gatekeeper  
and forwarded it to the source endpoint.  
•
“Incoming Q.931 TCP connection established”  
Received an incoming Q.931 TCP connection from the source.  
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•
“Attempting to establish outgoing Q.931 TCP connection”  
Successfully resolved the destination of the call and attempting to establish an  
outgoing Q.931 TCP connection to the destination.  
•
“Q.931 signaling received and forwarded”  
Both Q.931 TCP connections have been successfully established and Q.931  
signaling has been received and forwarded.  
•
“Callee admission request received”  
Received an admission request from the destination endpoint and forwarded  
it to the gatekeeper.  
•
“Callee admission response received”  
Received an admission response (either confirm or reject) from the gatekeeper  
and forwarded it to the destination endpoint.  
•
“Incoming H.245 TCP connection established”  
Received an incoming H.245 TCP connection from the source.  
•
“Attempting to establish outgoing H.245 TCP connection”  
Attempting to establish an outgoing H.245 TCP connection to the destination.  
•
“H.245 signaling received and forwarded”  
Both H.245 TCP connections have been successfully established and H.245  
signaling has been received and forwarded. At this point, the call is consid-  
ered established, even though no media channels have been opened up yet.  
•
“Outgoing media channel established”  
An outgoing media channel (from the LAN/subscriber side to the WAN/pro-  
vider side) has been opened.  
•
“Incoming media channel established”  
An incoming media channel (from the WAN/provider side to the LAN/sub-  
scriber side) has been opened.  
•
“Bidirectional media channels established”  
Media channels have been opened in both directions. This is a normal call  
where media is being sent in both directions.  
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Call Termination  
The call termination cause may also give some information about why the call  
terminated or failed to be established.  
•
“Out of system resources”  
The call could not be completed because the system was out of system  
resources.  
•
“Client owning the call has been deleted”  
The call could not be completed because the client that made this call was  
deleted during the call setup.  
•
“Connection to destination could not be established”  
A TCP connection to the destination could not be established.  
•
“Connection refused by destination”  
The call could not be completed because the destination refused the incoming  
TCP connection.  
•
“No route to destination”  
A TCP connection to the destination could not be established because the des-  
tination could not be reached. This could happen if there is no route to the  
destination or, if the destination is on the same subnet, the destination does  
not answer to ARP requests.  
•
“Connection to destination timed out”  
The TCP connection attempt to the destination timed out before it could be  
established.  
•
“Call ended by source”  
The call was gracefully terminated by H.323 signaling from the source. This  
usually indicates that the endpoint intended to terminate the call.  
•
“Call ended by destination”  
The call was gracefully terminated by H.323 signaling from the destination.  
This usually indicates that the endpoint intended to terminate the call.  
•
“Connection terminated by source”  
The call was terminated because the source terminated the TCP connection  
without prior call termination signaling.  
•
“Connection terminated by destination”  
The call was terminated because the destination terminated the TCP connec-  
tion without prior call termination signaling.  
•
“No admission confirm received”  
The call could not be established because the admission response was not  
received from the gatekeeper.  
•
“Cannot resolve destination”  
The call could not be established because the destination could not be  
resolved.  
•
“At maximum bandwidth usage”  
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Configuring the V2IU 4350  
The call could not be established because the system already is at the maxi-  
mum allowed bandwidth.  
•
“Received admission reject”  
The call was terminated because an admission reject was received from the  
gatekeeper.  
•
“Received disengage request”  
The call was terminated because the endpoint requested to tear down the call.  
•
“Received invalid data”  
The call could not be established because the system received invalid data on  
the signaling channel.  
•
“Cannot find client”  
The call could not be established because the called client could not be found.  
Viewing the H.323 Activity Monitor  
To configure the H.323 Activity Monitor, use the following steps:  
5. Using the configuration graphical user interface, from the Configuration  
Menu on the left-hand side, click VoIP.  
6. Click H.323 Activity. The window shown below opens.  
2. On this screen, the event list contains three columns:  
— The Event/Time field - shows the type of event and the time that it  
occurred.  
— The Source field - shows the source of the event as an IP address and  
an alias (when available).  
— The Destination field - shows the destination of the event as an IP  
address and an alias (when available).  
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User Manual V2IU 4350 Converged Network Appliance  
VoIP Configuration  
The 4350 provides a VoIP application layer gateway (ALG) for the SIP, MGCP,  
and H.323 protocols. The ALG proxies the connection between the VoIP  
softswitch, IP PBX or gatekeeper and voice and video devices such as IP  
phones, IADs or softphones. By acting as a proxy the 4350 is able to provide  
several important functions for IP based voice and video:  
•
Provide NAT/PAT services for voice and video traffic. NAT/PAT for  
VoIP enables you to use a single public IP address on the WAN interface  
of the 4350 to represent multiple private IP addresses assigned to voice or  
video devices on the LAN. The NAT function maps both IP address and  
IP port number between the public and private addresses so that all  
signaling and VoIP media packets are translated. A single public IP  
address can support up to 253 voice and video devices.  
•
Provide security services for voice and video traffic.  
— NAT/PAT services hide enterprise LAN topology from hackers.  
— The ALG acts as a “voice and video aware” firewall and ensures only  
authenticated voice traffic enters the enterprise LAN. This is  
accomplished by the dynamic provisioning of signaling and media  
ports for authenticated voice devices. The implementation is stateful  
and open ports are closed automatically when no longer required to  
support the voice or video call.  
•
Enable mobility in the enterprise LAN for voice devices. This is useful, for  
example, when using WiFi or moving office locations. In these instances  
the IP address of the voice and video device may be changed.  
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Configuring the V2IU 4350  
Configure the VoIP ALG  
In order to configure the VoIP ALG the 4350 must be told where to reach the  
signaling servers and TFTP server on behalf of the voice devices.  
1. Select VoIP ALG.  
2. If using VLANs assign the ALG to a specific VLAN id using the drop  
down menu.  
3. If you are using MGCP enter the MGCP Server IP Address, MGCP Media  
Gateway Port and MGCP Notified Entity Port.  
4. If you are using SIP enter the SIP Server IP Address and SIP server port.  
The SIP server port is the port used by the SIP registrar. The default value  
is port 5060.  
5. If you are using H.323 enter the H.323 Gatekeeper IP Address.  
6. Enter the TFTP Server Address. This address is used to identify the TFTP  
server that contains the images used by IP phones at boot up. The 4350  
performs a TFTP server relay function.  
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User Manual V2IU 4350 Converged Network Appliance  
It is not necessary to program in an FTP server address if your IP phones use the  
Note  
FTP protocol instead of TFTP to retrieve their images. A relay function is not  
needed for FTP as the 4350 will forward FTP traffic to the destination server as  
programmed in your IP phone.  
7. Automatic MGCP Re-registration is used to re-register MGCP endpoints  
every time the network or system restarts. Enable this feature to  
automatically synchronize the softswitch and phones immediately after a  
restart. The default is Enabled.  
8. The MGCP Re-registration Rate is used to set the number of MGCP RSIP  
messages to send per second to the Media Gateway Controller when  
re-registration is needed. If the MGCP Re-registration Rate needs to be  
changed, enter a value between 1 and 5. Generally, this value does not  
need to be modified. The default value is 5 msg/second.  
9. The system re-registers clients when it starts up. If any of these  
re-registration requests fail, the system will wait for the configured  
number of seconds and then retry the re-registration for the clients that  
failed. The system will make at most 10 re-registration requests for failed  
attempts. If the MGCP Re-registration Retry Delay needs to be changed,  
enter a value between 30 and 60 seconds. Generally, this value does not  
need to be modified. The default value is 30 seconds.  
10. The H.323 TerminalType is used to specify the type of terminal that the  
Voice Appliance should use. It can be either endpoint or gateway. The  
Maximum Bandwidth specifies the bandwidth to allow for H.323 calls.  
The bandwidth is specified in kbps and if it is set to 0, bandwidth  
management is not enforced. Only calls with media traversing the 4350 is  
counted towards the bandwidth maximum.  
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Configuring the V2IU 4350  
11. The Current payload bandwidth calculates the current video traffic,  
without IP overhead, traversing the Appliance. The Estimated total  
bandwidth calculates the total video traffic, plus IP overhead, traversing  
the Appliance.  
12. The H.323 Max Aliases limits the number of aliases that are allowed to  
register with the Voice Appliance. If this number is exceeded when a  
client tries to register, the registration will be rejected. If the value is set to  
0, the maximum is not enforced.  
13. The SIP LAN Side Gateway is used to configure a LAN side SIP gateway  
to which calls that are not for a registered phone can be sent. The name of  
the gateway is the name that is configured for the gateway in the  
soft-switch and the IP address is the address where the gateway can be  
reached.  
14. Press Submit.  
Configure VoIP Subnet Routing  
It is not necessary to configure VoIP subnet routing if all of your voice and  
video devices are installed on the same IP subnet as the 4350. In some  
installations the voice and video devices are located in different subnets than  
the 4350 and connected via intermediate routers. In these instances it is  
necessary to configure a return path in the 4350 by specifying the intermediate  
router who knows how to reach the voice devices. This router must be  
reachable by the 4350.  
IP Phones  
V2IU  
Router  
WAN  
Subnet B  
Subnet B  
EM007B  
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User Manual V2IU 4350 Converged Network Appliance  
VoIP Subnet Routing is separate and independent from static data routes (see  
Note  
Static IP routing). VoIP subnet routes must be configured for each LAN subnet that  
contains devices making use of the 4350’s Application Layer Gateway (ALG).  
These entries tell the ALG that the identified subnet is allowed to make use of its  
services and what router the ALG should use to reach that subnet.  
Enter a VoIP Subnet Route  
1. Select System.  
2. Select System Overview.  
3. Select VoIP Subnet Routing.  
4. Enter the IP Network (e.g. 10.10.12.0).  
This is the IP address of the remote subnet containing the voice devices.  
5. Enter the Netmask (e.g. 255.255.255.0).  
This is the mask of the IP address of the subnet containing the voice  
devices.  
6. Enter the Gateway (e.g. 10.10.10.2).  
This is the IP address of the intermediate router that knows the return path  
to the remote subnet from the 4350.  
7. Press Submit.  
Perform steps 1 through 7 for each remote subnet containing the voice devices.  
The 4350 is limited to a total of 20 different VoIP subnets.  
Note  
Delete a VoIP Subnet Route  
1. Select System.  
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Configuring the V2IU 4350  
2. Select System Overview.  
3. Select VoIP Subnet Routing.  
4. Enter the IP Network (e.g. 10.10.12.0).  
This is the IP address of the remote subnet containing the voice devices.  
5. Enter the Netmask (e.g. 255.255.255.0).  
This is the mask of the IP address of the subnet containing the voice  
devices.  
6. Enter the Gateway (e.g. 10.10.10.2).  
7. This is the IP address of the intermediate router that knows the return  
path to the remote subnet from the 4350.  
8. Select the Delete Subnet checkbox.  
9. Press Submit.  
Perform steps 1 through 8 for each remote subnet that you wish to delete.  
Configure IP Phones, IADs or Softphones  
After configuring the 4350 VoIP ALG the voice devices must be configured to  
point to the LAN interface of the 4350 as their signaling gateway and  
optionally as their TFTP server (if they use the TFTP protocol to retrieve their  
software images). The steps required to setup these devices differ from vendor  
to vendor. Using the DHCP server included in the 4350 will significantly  
simplify the setup of these devices if they are able to obtain their IP  
configuration via DHCP. Please consult the applicable users guide of each  
device for detailed instructions.  
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User Manual V2IU 4350 Converged Network Appliance  
Data Networking Configuration  
The 4350 provides static IP routing and two types of Network Address  
Translation (NAT) functions for data traffic. This section describes the use and  
configuration of these features.  
NAT for Data Traffic  
NAT allows hosts on a private internal network (the LAN side of the 4350) to  
anonymously communicate with devices on an external network (the WAN  
side of the 4350). The 4350 with NAT enabled will re-write outbound packet  
headers using public IP addresses in place of private IP addresses so that the  
private IP addresses are not exposed to the external network. Additionally, the  
ports used by the IP addresses are also changed as they traverse the 4350. This  
is known as Port Address Translation (PAT) and provides an additional  
security measure. The 4350 maintains a table of these mappings so that return  
packets can be forwarded to the correct host on the private network.  
The 4350 provides two types of NAT functions: dynamic NAT and static NAT.  
Dynamic NAT allows many private IP addresses to be mapped to a single  
public IP address (using different port numbers of the public IP address).  
Static NAT maps private IP addresses and port. For example, mapping a  
public IP address to a specific machine on the private network responsible for  
receiving email.  
The 4350 ALG automatically handles NAT for voice devices.  
Note  
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Configuring the V2IU 4350  
Configure Dynamic NAT  
Use Dynamic NAT when you have multiple PCs installed on the LAN side of  
the 4350 that require Internet or WAN access. Once Dynamic NAT is enabled  
the 4350 will automatically perform an address translation for all packets  
to/from the LAN side PCs.  
1. From the Configuration Menu select NAT.  
2. Use the Enable Lan NAT checkbox to enable or disable dynamic NAT.  
The default value for dynamic NAT is enabled.  
3. Press Submit.  
Configure Static NAT  
Use Static NAT when a server or PC located in the private network needs to be  
accessible from the external network. Some examples include a corporate web  
server, a mail server or an FTP server. In these instances, the 4350 statically  
maps the public IP address of each server to the actual private IP address of  
the server.  
In order for Static NAT to function dynamic NAT must be enabled.  
Note  
1. Select NAT.  
2. Enter the public and private IP addresses and ports to be mapped in  
Static NAT Client Entries using the following format:  
Protocol;PublicIPAddress/netmask-port>PrivateIPAddress-port  
For example, the entry “tcp;198.66.203.19-80>192.168.1.3-8080” will map  
all web traffic destined to public IP address 198.66.203.19 to the private  
webserver 192.168.1.3 port 8080. The public IP address of 198.66.203.19 is  
automatically created as a “subinterface” or “secondary address” on the  
WAN interface of the 4350 so that external hosts can reach the web server.  
Each entry should be placed on a new line.  
3. Press Submit.  
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Delete a Static NAT entry  
1. Select NAT.  
2. To delete an IP address or a range of IP addresses highlight the entry in  
the Static NAT Client Entries list and press the Delete key on your  
keyboard.  
3. Press Submit.  
Static IP routing  
In addition to locally connected IP networks the 4350 can forward traffic for a  
remote data network by configuring a static route entry. Any packets destined  
for the remote data network will be forwarded to the specified gateway  
address in the entry.  
Configure the static route  
1. Select System.  
2. Select System Overview.  
3. Select Route.  
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Configuring the V2IU 4350  
4. Select the Apply Route checkbox.  
5. Enter the IP Network address. This address is the remote data network  
you would like the 4350 to forward to the gateway. The hosts portion of  
the IP address should be set to “0”. For example, 10.10.20.0  
6. Enter the Netmask of the remote data network. For example,  
255.255.255.0  
7. Enter the Gateway IP address of the interface that will receive all packets  
destined for the remote data network.  
8. Press Submit.  
Delete the static route  
1. Select System.  
2. Select System Overview.  
3. Select Route.  
4. Remove the check in the Apply Route checkbox.  
5. Press Submit.  
Firewall Configuration  
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User Manual V2IU 4350 Converged Network Appliance  
The 4350 uses a Stateful Packet Inspection (SPI) firewall to protect data devices  
installed behind the LAN interface. Voice devices are protected by the 4350  
Application Layer Gateway (ALG) as described in VoIP Configuration.  
The firewall is enabled by default. The default behavior of the firewall is to:  
•
•
•
•
•
deny all traffic originating from the WAN  
allow all traffic originating from the LAN  
allow only return traffic for connections that originated from the LAN  
deny all traffic originating from the WAN to the 4350 itself  
allow all traffic originating from the LAN to the 4350  
The default behavior can be modified using the basic and advanced settings  
fields on the firewall configuration page. We recommend that you use the 4350  
firewall, however it can be disabled if the 4350 is installed behind an existing  
legacy firewall.  
Enable or disable the firewall  
1. Select Firewall.  
2. Use the Enable Firewall checkbox to either enable or disable the firewall.  
3. Select Submit.  
Configure Basic settings  
To allow or deny HTTP, Telnet and SSH traffic originating from the WAN to  
the 4350 simply use the checkboxes provided in the basic settings area of the  
firewall configuration page. By default, access from the WAN into the 4350 is  
disabled.  
Denying HTTP, Telnet or SSH traffic from the WAN may result in losing  
management connectivity to the 4350 if you are configuring the system remotely  
using the WAN link.  
Warning  
1. Select Firewall.  
2. Use the three Allow access from WAN side checkboxes to enable or  
disable HTTP, Telnet, and/or SSH access from IP devices on the WAN  
side of the 4350.  
3. Select Submit.  
Configure Advanced Settings  
A comprehensive security policy can be created using the advanced settings of  
the 4350 firewall. The policy actions that can be taken on any packet processed  
by the 4350 are summarized in the following table:  
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Configuring the V2IU 4350  
Action  
Description  
Input format  
Allow TCP Port  
Allows traffic with the  
specified TCP port to  
terminate on the 4350.  
*Valid values range from 1 through 65535. *Multiple  
entries are separated by a space  
*Range value specified by the : character. For example,  
25:50 means perform the action on ports 25 through 50  
Allow UDP Port  
Deny Hosts (IP)  
Allows traffic with the  
specified UDP port to  
terminate on the 4350.  
*Valid values range from 1 through 65535. *Multiple  
entries are separated by a space  
*Range value specified by the : character. For example:  
25:50 means perform the action on ports 25 through 50  
Denies all traffic with the  
source IP address  
matching the specified  
hosts  
*Multiple entries are separated by a space  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Deny Hostwise  
TCP (IP-Port)  
Denies all traffic  
*Multiple entries are separated by a space  
matching the specified  
TCP port numbers and  
the specified source IP  
addresses  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Deny Hostwise  
UDP (IP-Port)  
Denies all traffic  
*Multiple entries are separated by a space  
matching the specified  
UDP port numbers and  
the specified source IP  
addresses  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
Allow Hostwise  
TCP (IP-Port)  
Allows all traffic matching  
the specified TCP port  
numbers and the  
specified source IP  
addresses  
*Multiple entries are separated by a space  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
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Allow Hostwise  
UDP (IP-Port)  
Allows all traffic matching  
the specified UDP port  
numbers and the  
specified source IP  
addresses  
*Multiple entries are separated by a space  
*Port are specified using a - character. For example:  
192.168.3.1-23 for Telnet.  
*Port ranges are specified using a : character. For  
example: 192.168.3.1-23:50 means port 23 through 50  
*Classful IP addresses are assumed by default. For  
example: 192.168.3.1 uses a class c mask. Subnets can  
be specified using the / notation. E.g. 192.168.3.1/24  
If a given packet does not match any of the configured rules, it is dropped.  
1. Select Firewall.  
2. Enter the desired Advanced Settings using the table above as a guide.  
3. Select Submit.  
Remove Advanced Setting Entries  
To remove an advanced firewall setting simply highlight the value in the entry  
box and delete it using the keyboard.  
1. Select Firewall.  
2. Highlight the entry to be deleted in the Advanced Settings list and press  
the Delete key on your keyboard.  
3. Press Submit.  
Traffic Management Configuration  
Traffic management is required to ensure high quality voice and video calls  
when voice, video, and data traffic share the same WAN link. Voice and video  
traffic must be prioritized for transmission over data traffic to meet the  
stringent jitter, latency and packet loss requirements for high quality voice and  
video. The 4350:  
•
Automatically prioritizes voice and video traffic over data traffic to ensure  
high quality voice and video calls.  
•
Maximizes WAN link utilization by allowing data traffic to burst up to full  
line rate in the absence of voice and video calls.  
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Configuring the V2IU 4350  
•
•
Controls the data transfer rate of far-end WAN TCP devices to limit WAN  
link congestion.  
Supports network-based QoS applications by setting the TOS bits for all  
VoIP packets sent to the WAN and the LAN. TOS bits are used so that  
VoIP packets can be prioritized in the network by DiffServ enabled  
routers. The TOS bit value used by the 4350 is to “minimize delay and  
maximize throughput”, or 0xb8 hexadecimal. This value is set for all VoIP  
packets processed by the 4350 and overwrites any specific TOS bit  
configuration set by VoIP endpoints.  
•
Ensures that bandwidth allocated to new voice and video calls does not  
adversely affect the quality of existing active calls (Call Admission Control  
or CAC).  
The 4350 combines sophisticated traffic management mechanisms including  
classification, prioritization, queuing, rate limiting and CAC to ensure high  
quality voice and video calls. Fortunately the system manages this complexity  
for you and configuring traffic management is very straightforward:  
1. Enable traffic shaping.  
2. Specify the upstream and downstream bandwidth of your WAN link.  
3. Enable CAC.  
Please follow the steps below to configure and enable traffic management.  
Enable Traffic Shaping  
1. From the Configuration Menu, select Traffic Shaper.  
2. Select the Enable traffic shaper checkbox.  
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3. Specify the upstream and downstream bandwidth of your WAN link  
4. Enter the WAN Downstream Bandwidth in Kbps.  
5. Enter the WAN Upstream Bandwidth in Kbps.  
For FT1/T1/E1 links the upstream and downstream bandwidths will always be the  
same value (the link is full-duplex).  
Note  
Optionally enable priority IP addresses  
VoIP traffic from devices that use the VoIP ALG function (phones, video  
stations, softphones on Pcs, etc.) are already marked as high priority and do  
not need to be manually configured in this list. This list is used to prioritize  
voice traffic from trunk interfaces of IP PBXs or other high priority devices that  
do not use the VoIP ALG function of the 4350.  
>> Enter the IP address of other high priority devices in the priority IP  
Addresses box.  
You can enter individual IP addresses or a range using by appending a  
“-“character to the last octet. For example, 10.10.10.2-5 would specify  
10.10.10.2, 10.10.10.3, 10.10.10.4 and 10.10.10.5 as voice devices.  
Care must be taken to ensure that the IP addresses entered do not include data  
devices such as PCs or workstations. Traffic from these devices will be placed in  
the priority voice queue internal to the 4350 and burst up to full line rate. This will  
starve actual voice devices by consuming priority bandwidth and result in dropped  
calls, busy signals & poor voice quality.  
Warning  
Enable CAC  
The 4350 uses CAC to limit the number of active voice calls over the WAN link.  
This is necessary because a typical installation uses a ratio of 1:2 or 1:4 active  
voice calls to voice devices on the assumption that 50% or 25% of all users are  
on the phone at the same time. These ratios are guidelines only and at times  
the number of concurrent calls may exceed the amount of WAN bandwidth  
available to process the calls. In this instance existing phone calls will  
experience poor quality or be dropped all together. To prevent this from  
occurring a typical voice installation will set a threshold for the maximum  
number of concurrent voice calls supported by the WAN access link. New call  
requests in excess of this threshold will receive the equivalent of a “fast busy”  
and the WAN link will not become oversubscribed.  
For IP Centrex installations the maximum number of concurrent voice calls is  
usually configured in the 4350 by enabling CAC. When the 4350 is deployed  
in IP PBX applications the maximum number of concurrent calls could be  
configured in the IP PBX. If the PBX is responsible for this setting you do not  
need to configure CAC in the 4350. Please check with your IT administrator to  
determine if this is the case.  
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Configuring the V2IU 4350  
Determining the maximum number of concurrent calls  
The maximum number of concurrent calls that can be supported by the WAN  
access link is calculated using the following formula:  
Max calls = (Maximum WAN upstream bandwidth * .85)/VoIP codec rate  
where,  
Maximum WAN upstream bandwidth = value entered in step D above (in  
Kbps)  
VoIP codec rate = 85.6Kbps for G.711 voice devices or 29.6Kbps for G.729 voice  
devices.  
The maximum WAN upstream bandwidth is multiplied by .85 in the formula  
above to reduce the total bandwidth available for voice calls by 15%. This  
reduction is necessary because the 4350 automatically reserves 15% of the total  
WAN bandwidth for low priority data traffic so that it is not starved  
completely. Starving data traffic completely would increase the number of  
retry attempts and exacerbate congestion on the link during periods of peak  
usage.  
Examples  
The maximum number of G.711 voice calls supported by a T1 (1.536 Kbps)  
WAN is calculated as follows:  
(1.536*.85)/85.6 = 15.3 or 15 total voice calls.  
The maximum number of G.711 voice calls supported by a 768Kbps fractional  
T1 WAN is calculated as follows:  
(768*.85)/85.6 = 7.6 or 7 total voice calls  
The maximum number of G.729 voice calls supported by a 256Kbps fractional  
T1 WAN is calculated as follows:  
(256*.85)/29.6 = 7.4 or 7 total voice calls  
After determining the maximum number of voice calls CAC is enabled as  
follows:  
1. Select the Enable Call Admission Control checkbox.  
2. Enter Maximum number of calls allowed as calculated above.  
3. Press Submit.  
A Closer Look at Traffic Management in the 4350  
The traffic management mechanisms provided by the 4350 are designed to  
ensure high priority real-time voice and video traffic is processed before lower  
priority data traffic. At the same time, bandwidth not in use by voice and video  
traffic is made available so that data traffic can burst up to full line rate making  
efficient use of WAN bandwidth. Traffic management mechanisms are  
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User Manual V2IU 4350 Converged Network Appliance  
applied to traffic in both the upstream (LAN to WAN) and downstream (WAN  
to LAN) direction. Each direction is independent of the other and can support  
different size priority queues.  
Classifying  
High priority voice and video traffic generated by endpoint devices is  
automatically identified by the V2IU’s VoIP Application Layer Gateway. Other  
VoIP devices (not making use of the ALG) can be defined as high-priority by  
their IP address. The user configures these addresses into the priority list in the  
Traffic Shaper section of the 4350 web GUI.  
As the 4350 processes packets they are identified as either high or low priority  
based on this configuration. Packets identified as high priority are marked as  
such in the TOS bits of their IP header, allowing prioritization by downstream  
routers. The TOS field is set to 12 hexadecimal “minimize delay and maximize  
throughput.” This value overwrites any prior value.  
Upstream Traffic Management  
The 4350 appliance uses a combination of Class Based Queuing and simple  
classless queuing to send data in the upstream direction. The Class Based  
Queue (CBQ) consists of two priority classes (high and low), a scheduler to  
decide when packets need to be sent, and a traffic shaper to rate-limit by  
delaying packets before they are sent. Each of these is described in more detail  
below.  
Priority classes  
Voice and video traffic is placed in the high-priority queue and data traffic is  
placed in the low-priority queue. The IP header TOS field of packets in the  
high-priority queue is set to “minimize delay and maximize throughput”.  
Scheduler  
High-priority data is polled before low priority data, thereby minimizing the  
latency for voice and video traffic. High-priority data is allowed to use up to  
85% of the total WAN bandwidth. Although preferential treatment is given to  
high-priority data, 15% of the WAN link is always reserved so that  
low-priority data is not starved.  
High priority data is polled before lower priority data to reduce overall latency  
for voice traffic.  
Traffic shaper  
To smooth bursts from high speed data links (typically from the LAN Ethernet  
heading to the WAN) the 4350 appliance uses a buffer that clocks data out at  
rates not exceeding automatically-calculated maximums. Low-priority data is  
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Configuring the V2IU 4350  
clocked out at the WAN link’s full rate LESS the bandwidth currently being  
used for high-priority (voice) data. High-priority data is clocked out at the  
WAN’s full link rate. Any long-lasting burst condition in low-priority data will  
cause these packets to be delayed and, if necessary, dropped.  
Downstream Traffic Management  
Since the 4350 is the final transmitting device for WAN traffic in the upstream  
direction (LAN to WAN) it is easy to see how its QoS mechanisms can be  
applied to traffic it is transmitting to guarantee sufficient bandwidth for voice  
traffic. We have control over how packets are handed to the WAN interface.  
In the downstream direction (WAN to LAN) we are installed at the receiving  
end of a service provider link and therefore have no control over the amount  
of voice or data traffic being sent to us over the WAN interface. How then can  
we still guarantee the quality of in-bound voice traffic when it is entirely  
possible for an FTP session, for example, to consume the vast majority of  
downstream bandwidth?  
Fortunately this is possible by shaping on both the egress LAN and egress  
WAN ports of the 4350 appliance and leveraging the congestion avoidance  
mechanisms built into TCP. Essentially, data packets received by the 4350’s  
WAN interface at a rate that exceeds the T1’s bandwidth LESS the bandwidth  
used for active voice calls are delayed (then dropped if necessary) before being  
forwarding on to its LAN interface. Similarly, data traffic sent back to the 4350  
for transmission to the WAN are also delayed (as described in the above  
section). This results in the WAN-based devices following the rules of TCP/IP  
congestion avoidance and slowing down their transmit rate. This technique is  
quite effective in practice, as end stations usually reduce their transmit rate  
before VoIP signaling has completed for new call setup.  
For example consider the scenario where there are no voice calls over a WAN  
link and multiple FTP sessions are consuming all available bandwidth:  
1. A new call request is received by the 4350 from the WAN.  
2. All signaling messages for the call are classified as voice traffic and  
therefore prioritized for transmission to the LAN before servicing the  
inbound FTP data.  
3. RTP traffic (the voice data within an ongoing VoIP session) is similarly  
classified as voice traffic and treated with priority.  
4. FTP data is buffered (or dropped) by the 4350 and return data, including  
the FTP ACKs, are also delayed. This results in a throttling of the transmit  
rate by the (far-end) FTP hosts, reducing overall WAN bandwidth  
consumption.  
Generally, excessive UDP traffic must be shaped in the service provider  
network, as UDP does not provide congestion avoidance mechanisms. The  
exception to this is in the case of RTP UDP-based messages for voice traffic.  
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User Manual V2IU 4350 Converged Network Appliance  
Although RTP makes use of UDP the 4350 appliance is able to provide its own  
congestion avoidance mechanism for voice traffic using Call Admission  
Control (CAC).  
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4
System Diagnostics  
The V2IU 4350 provides a powerful set of diagnostic information,  
troubleshooting tools and utilities for system maintenance to network  
operators.  
Viewing Software Version, Hardware Platform and the LAN  
MAC Address  
The software version, hardware platform, and LAN MAC address are  
common pieces of information requested by technical support and are  
accessed directly through the System page of the 4350 web GUI.  
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User Manual V2IU 4350 Converged Network Appliance  
Viewing the ALG registration code  
You will also find a link to the ALG registration code on the System page. The  
registration code enables the ALG and is pre-installed at the factory. If the  
registration code is inadvertently deleted you can re-enter the code using the  
following steps:  
Enter the Registration Code  
1. Select System.  
2. Select registration code.  
3. Select Edit Registration Code.  
4. Enter the Registration Code.  
The registration code can be found on the sticker located on the bottom of  
the 4350.  
5. Press Submit.  
Viewing Networking Information  
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System Diagnostics  
To view the networking configuration and status of the 4350 proceed to the  
Network Information page as follows:  
1. Select System.  
2. Select System Overview.  
3. Select Network Information.  
The following networking information is displayed:  
Routing Information  
The system routing table contains the static routes for hosts and networks that  
are configured on the 4350. If just the LAN and WAN IP addresses have been  
configured there will be four lines displayed:  
•
•
•
•
The private subnet will be associated with the LAN interface.  
A public subnet present for the WAN interface.  
An entry for the 4350 loopback interface  
The 4350’s default gateway forwarding to the WAN interface  
Additional lines may be displayed depending on the contents of the Route and  
VoIP Subnet Routing pages. Each of the entries on these pages will cause an  
additional entry in the routing table.  
Link Status  
Link Status displays the status of the ethernet interfaces. Ethernet  
autonegotiation is often unreliable, especially between different vendors or  
old and new networking equipment. Failure of autonegotiation is generally  
not a cause for concern. However, if the negotiated rates change intermittently  
or the link is reported as down or no link, the link rate may need to be set  
manually on the Set Link Rate page. Intermittent data and voice outages may  
be caused by link flapping when the two endpoints of the Ethernet cable  
cannot reach agreement using autonegotiation. If the link rate is set manually,  
ensure that the device at the far end of the connection can communicate at the  
desired rate. Incompatible rates can cause a loss of communication with the  
4350.  
Link status for the Ethernet ports is displayed via the LEDs adjacent to each  
physical port.  
Interface Information  
The specific status and configuration information for the system interfaces is  
displayed in the Interface Information section. HDLC0 shows the interface  
statistics for the T1/E1 WAN link. ETH0 shows the interface statistics for the  
internal LAN interface between the 4350 processor and the built-in LAN  
switch. Interface statistics for the external LAN ports are not displayed.  
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User Manual V2IU 4350 Converged Network Appliance  
The interface statistics can point to areas of congestion in the network. If the  
errors statistic is a few percent or more of the total packets sent it may be an  
indication of excessive congestion on the network interface. If the congestion  
is not corrected the quality of voice calls will be affected. The topology of the  
network attached to the network interface with the errors should be examined  
and modified to better segment and isolate network traffic.  
Viewing Advanced System Information  
To view advanced system information for the 4350 proceed to the System  
Information page as follows:  
1. Select System.  
2. Select System Overview.  
3. Select System Information.  
The following system information is displayed:  
System Uptime  
System Uptime displays the current time, the amount of time elapsed since the  
last system reboot, and the system load averages for the past 1, 5, and 15  
minutes. Uptime can help trace when a power outage may have interrupted  
service. Load averages that remain greater than 2 indicate excessive system  
loading. Partitioning voice traffic using a second system may be required.  
Process Information  
Displays the active processes in the 4350.  
Memory Usage  
Displays detailed memory allocation information that may be of use to  
technical support.  
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System Diagnostics  
System Logging Messages  
Displays information logged during system boot and normal operation.  
Logging messages may indicate unauthorized attempts to access the 4350,  
process restart messages, and excessive resource utilization messages.  
Passive Voice Call Monitoring  
The 4350 monitors live voice calls and performs objective speech quality  
assessment. This information enables the network operator to assess voice  
quality for the purposes of SLA tracking or problem isolation. Mean Opinion  
Score (MOS) results for RTP streams in both directions of a VoIP call are  
calculated at call completion. This information along with the IP addresses of  
the VoIP endpoints supporting the call are logged locally and optionally sent  
to an external syslog server (see Enable Remote System Logging <<<find this  
heading>>> for instructions on enabling logging to a remote syslog server).  
Additionally the 4350 will generate a real-time message for any MOS values  
calculated less than 2.5 (considered poor quality) during an active call.  
Voice call quality information is found locally in the System Logging Messages  
section of the System Information page and a sample output is provided  
below.  
Accessing Troubleshooting Tools  
The 4350 provides convenient test tools to facilitate problem isolation and  
resolution. A network operator can use these tools to verify connectivity  
to/from the 4350 as well as trace datapaths to endpoints throughout the  
network.  
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User Manual V2IU 4350 Converged Network Appliance  
Verify Registered Voice and Video Devices  
The 4350 maintains a list of all registered voice and video devices called a  
clients list so that it can properly route voice and video calls. At startup, voice  
and video devices register their IP addresses with the 4350. The 4350 then  
registers on behalf of the voice and video devices by providing its own WAN  
IP address to the softswitch, gatekeeper, or IP PBX. If a user or network  
operator reconfigures the IP address of the voice or video device (such as an IP  
phone or IAD), it will re-register the new address with the 4350. In this  
instance voice and video calls may be routed improperly because the 4350  
clients list contains out of date information.  
To update the clients list simply highlight and delete the stale entry using the  
following steps:  
1. Select System.  
2. Select System Overview.  
3. Select Clients List.  
4. Proceed to the appropriate signaling section, highlight the duplicate  
entry or entries and press the delete key on the keyboard  
5. Press Submit.  
6. Restart the VoIP ALG by following the instructions found in Restarting  
Networking Processes.  
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System Diagnostics  
Performing a Ping Test  
A ping test is the most common test used to verify basic connectivity to a  
networking device. Successful ping test results indicate that both physical and  
virtual path connections exist between the 4350 and the test IP address.  
Successful ping tests do not guarantee that all data traffic is allowed between  
the 4350 and the test IP address but is useful to verify basic reachability.  
The following steps are used to perform a ping test:  
1. Select System.  
2. Select System Overview.  
3. Select Network Test Tools.  
4. Enter the IP Address to Ping.  
5. Press Ping.  
The Network Test Tools page will be refreshed and the results of the ping test  
are displayed (this may take several seconds). The Reset button is used to clear  
the IP address entry used in step D above.  
Performing a Traceroute Test  
A traceroute test is used to track the progress of a packet through the network.  
The test can be used to verify that data destined for a WAN device reaches the  
remote IP address via the desired path. Similarly, internal network paths can  
be traced over the LAN to verify the local network topology. The following  
steps are used to perform a traceroute test:  
1. Select System.  
2. Select System Overview.  
3. Select Network Test Tools.  
4. Enter the IP address to Trace.  
5. Select either the WAN or the LAN radio button  
6. Press Traceroute.  
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User Manual V2IU 4350 Converged Network Appliance  
The Network Test Tools page will be refreshed and the results of the traceroute  
test are displayed (this may take several seconds). The Reset button is used to  
clear the IP address entry used in step D above.  
Restarting Networking Processes  
In extreme circumstances while troubleshooting you may be asked to restart  
the networking processes including the VoIP ALG in the 4350 by technical  
support. Use the following steps to restart the networking processes:  
1. Select System.  
2. Select System Overview.  
3. Select Networking Restart.  
4. Press restart.  
Restarting network services will interrupt the system for up to a minute. All voice  
and data sessions currently in progress will be interrupted.  
Warning  
Rebooting the 4350  
In extreme circumstances while troubleshooting you may be asked to reboot  
the 4350 by technical support. Please use the following steps to reboot the  
system:  
1. Select System.  
2. Select System Overview.  
3. Select Rebooting System.  
4. Press reboot.  
Alternatively a reset can be performed locally by temporarily disconnecting  
the power cable from the 4350.  
Rebooting the system will interrupt services for a few minutes. All voice and data  
sessions currently in progress will be interrupted.  
Warning  
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5
Saving and Restoring the V2IU 4350  
Configuration  
The V2IU 4350 stores all configuration information for the system in a series of  
individual files that reside in local flash memory. These files are read at boot  
time to determine the configuration identity of the 4350 and then stored in  
RAM as “running” state. As you configure the 4350 the submit command  
writes the configuration changes to both RAM and flash so that the files stored  
in flash are always up to date with the running state of the system.  
The 4350 provides a utility that enables you to copy the individual  
configuration files stored in flash to a single, consolidated backup file. This  
single file can then be used as a backup for the entire system and restored at a  
later date if necessary. Multiple backup files with different system  
configurations can also be created and stored locally in the 4350 or on remote  
TFTP servers.  
No more than 2 backup files can be stored in the 4350’s flash due to size  
constraints. Also, it is recommended that you create a backup file after any  
configuration changes are made to the 4350. This is to prevent the loss of any  
configuration changes made since your last backup in the event that you must  
restore the system configuration.  
Note  
Backup file operations are performed in the 4350 CLI using the ewn command.  
The ewn Command  
The syntax for the ewncommand is as follows:  
USAGE:  
ewn help|list  
ewn save|load|delete [file name]  
ewn upload|download [file name] [ip address]  
where file name must use extension .conf1 or .conf2  
The ewncommand can be used with a local terminal connection or remotely  
using SSH.  
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User Manual V2IU 4350 Converged Network Appliance  
1. Use a NULL modem cable to connect to serial port 1 of the 4350  
2. Use a terminal emulator such as Hyperterminal set to a baud rate of 9600,  
8, 1 and none (databits, stop bits and parity)  
Alternatively you can connect to the 4350 remotely using SSH:  
1. Logon as root  
2. Enter the password  
Once you are at the command prompt (#) you can create the backup file, store  
it to local flash, copy it to a remote TFTP server, copy it from a remote TFTP  
server, delete it, load it or list all available backup files.  
Create a Backup File and Save in Local Flash  
# ewn save <filename>  
Saves the current running configuration.  
Filename format (must use extension .conf1 or .conf2):  
<filename1>.conf1  
<filename2>.conf2  
<filenameX> can be a combination of both letters and characters. For example,  
EWN30_041503.conf1 or location1_E30.conf2. Trying to use any other  
filename format will result in the error message:  
“EWN_ERROR_BAD_FILE_NAME”.  
The “.conf” extensions have special significance. If you save a configuration with  
<filename-new>.conf1, then any existing <filename-old>.conf1 will be overwritten  
with the new one.  
Warning  
Copy a Backup File to a Remote TFTP Server  
# ewn upload <filename> <tftp server IP Address>  
Copy a backup file from the 4350 to a TFTP server.  
Download a Backup File from a Remote TFTP Server  
# ewn download <filename> <tftp server IP Address>  
Download a backup file from a TFTP server to the V2IU.  
List the Available Backup Files  
# ewn list  
List all backup files stored in FLASH. If no file has been saved, the command  
will only return the # prompt.  
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Saving and Restoring the V2IU 4350 Configuration  
Delete a Backup File  
# ewn delete <filename>  
Delete the backup file specified in the filename.  
Load a Backup File so that it Becomes the Running Configuration  
# ewn load <filename>  
Loads the specified backup file into RAM and makes it the active running  
configuration.  
Issuing this command will automatically restart the 4350 and therefore interrupt any  
active voice calls and data sessions.  
Warning  
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User Manual V2IU 4350 Converged Network Appliance  
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6
Upgrading the V2IU 4350  
This chapter describes how to upgrade your 4350 to the latest software release  
available from Polycom.  
It is recommended that you reboot the 4350 prior to performing the upgrade.  
This is to make sure there is enough dynamic memory available to handle the  
upgrade process.  
When you update your software telephone services will be unavailable for several  
minutes. It is therefore advised that upgrades be performed during a maintenance  
window when telephone traffic can be interrupted.  
Warning  
Upgrade Procedure for Software Revision 1.3.11 or Later  
Use this procedure if your 4350 is running software revision 1.3.11 or later. The  
software version can be found on the System page of the web GUI.  
1. Select System.  
2. Select System Overview.  
3. Select Upgrade firmware.  
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User Manual V2IU 4350 Converged Network Appliance  
4. Enter the Download Server address of ftp.support.polycom.com.  
5. Enter the Filename: flash.bin  
6. Press Submit.  
You can follow the progress of the upgrade by selecting the refresh the  
upgrade status link.  
Do not change the configuration or power off the device until the write is 100  
percent complete. The 4350 may become unusable if the write is interrupted. The  
flash write can take up to 5 minutes depending on the speed of the download  
server.  
Warning  
The system will automatically restart after the new image has been loaded.  
7. Verify that the upgrade was successful by checking the software revision  
number found on the System page.  
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Appendix  
Troubleshooting Tips  
This section contains possible solutions to problems regarding the installation  
of the V2IU 4350.  
I am having trouble reaching the Internet through the 4350.  
We recommend connecting a PC directly (or via a switch) to the LAN port of  
the 4350. The default LAN IP address of the 4350 is 192.168.1.1 so please be  
sure that the IP address of the PC is on the same network (such as 192.168.1.2).  
Once you have connected please verify that the IP configuration information  
in the Network page is correct. Some other items to try:  
•
•
Ping the WAN interface of the 4350 from the attached PC  
Ping the DNS server for your network. Sometimes connectivity problems  
occur when the domain name being used cannot be mapped to the proper  
IP address.  
•
•
Ping a well known address on the Internet.  
Ping the IP address of the remote softswitch or IP PBX.  
I do not receive dial tone when going “off hook” or my phone will not register  
with the softswitch/IP PBX.  
•
•
Verify the configurations on the VoIP ALG page.  
Check that the ALG registration code is configured.  
1. Select System.  
2. Select registration code.  
•
Attempt to ping the softswitch using the ping tool in the web GUI.  
3. Select System.  
4. Select System Overview.  
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User Manual V2IU 4350 Converged Network Appliance  
5. Select Network Test Tools.  
6. Enter the softswitch address in the IP Address to Ping field.  
7. Press Ping.  
Specifications  
WAN Ports  
LAN Ports  
Serial Ports  
Dimensions  
Weight  
1xT1 CSU/DSU or 10/100 Ethernet  
4x10/100 Ethernet (switched)  
1xRS-232  
Height (1.7”), Width (10”), Depth (7”)  
2 lb  
Power  
12V 3A  
1 Year  
Warranty  
Operating Temperature: 5° to 40°C  
Environmental  
Humidity: 20% to 80%, non-condensing  
Appendix - 2  
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Regulatory Notices  
Important Safeguards  
Read and understand the following instructions before using the system:  
•
Close supervision is necessary when the system is used by or near children. Do not leave  
unattended while in use.  
•
•
•
Only use electrical extension cords with a current rating at least equal to that of the system.  
Always disconnect the system from power before cleaning and servicing and when not in use.  
Do not spray liquids directly onto the system when cleaning. Always apply the liquid first to a  
static free cloth.  
•
•
Do not immerse the system in any liquid or place any liquids on it.  
Do not disassemble this system. To reduce the risk of shock and to maintain the warranty on the  
system, a qualified technician must perform service or repair work.  
•
•
•
Connect this appliance to a grounded outlet.  
Only connect the system to surge protected power outlets.  
Keep ventilation openings free of any obstructions.  
SAVE THESE INSTRUCTIONS.  
END-USER LICENSE AGREEMENT FOR POLYCOM® SOFTWARE  
IMPORTANT-READ CAREFULLY BEFORE USING THE SOFTWARE  
PRODUCT:  
This End-User License Agreement (“Agreement”) is a legal agreement  
between you (and/or any company you represent) and either Polycom (Neth-  
erlands) B.V. (in Europe, Middle East, and Africa), Polycom Hong Kong, Ltd.  
(in Asia Pacific) or Polycom, Inc. (in the rest of the world) (each referred to  
individually and collectively herein as “POLYCOM”), for the SOFTWARE  
PRODUCT licensed by POLYCOM. The SOFTWARE PRODUCT includes  
computer software and may include associated media, printed materials, and  
“online” or electronic documentation (“SOFTWARE PRODUCT”). By clicking  
“I AGREE” or by installing, copying, or otherwise using the SOFTWARE  
PRODUCT, you agree to be and will be bound by the terms of this Agree-  
ment. If you do not agree to the terms of this Agreement, your use is prohib-  
ited and you may not install or use the SOFTWARE PRODUCT.  
Regulatory Notices - 1  
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V2IU 4350 Converged Network Appliance User Manual  
The SOFTWARE PRODUCT is protected by copyright laws and international  
copyright treaties, as well as other intellectual property laws and treaties. The  
SOFTWARE PRODUCT is licensed (not sold) to you, and its use is subject to  
the terms of this Agreement. This is NOT a sale contract.  
1.GRANT OF LICENSE. Subject to the terms of this Agreement, POLYCOM  
grants to you a non-exclusive, non-transferable, revocable license to install  
and use the SOFTWARE PRODUCT solely on the POLYCOM product with  
which this SOFTWARE PRODUCT is supplied (the “PRODUCT”). You may  
use the SOFTWARE PRODUCT only in connection with the use of the PROD-  
UCT subject to the following terms and the proprietary notices, labels or  
marks on the SOFTWARE PRODUCT or media upon which the SOFTWARE  
PRODUCT is provided. You are not permitted to lease, rent, distribute or sub-  
license the SOFTWARE PRODUCT, in whole or in part, or to use the SOFT-  
WARE PRODUCT in a time-sharing arrangement or in any other  
unauthorized manner. Further, no license is granted to you in the human  
readable code of the SOFTWARE PRODUCT (source code). Except as  
expressly provided below, this License Agreement does not grant you any  
rights to patents, copyrights, trade secrets, trademarks, or any other rights in  
respect to the SOFTWARE PRODUCT.  
2.OTHER RIGHTS AND LIMITATIONS.  
2.1Limitations on Reverse Engineering, Decompilation, and Disassembly. You  
may not reverse engineer, decompile, modify or disassemble the SOFTWARE  
PRODUCT or otherwise reduce the SOFTWARE PRODUCT to human-per-  
ceivable form in whole or in part, except and only to the extent that such  
activity is expressly permitted by applicable law notwithstanding this limita-  
tion. The SOFTWARE PRODUCT is licensed as a single product. Its compo-  
nent parts may not be separated for use on more than one PRODUCT. You  
may not use the SOFTWARE PRODUCT for any illegal purpose or conduct.  
2.2Back-up. Except as expressly provided for under this Agreement you may  
not copy the SOFTWARE PRODUCT; except, however, you may keep one  
copy of the SOFTWARE PRODUCT and, if applicable, one copy of any previ-  
ous version, for back-up purposes, only to be used in the event of failure of  
the original. All copies of the SOFTWARE PRODUCT must be marked with  
the proprietary notices provided on the original SOFTWARE PRODUCT. You  
may not reproduce the supporting documentation accompanying the SOFT-  
WARE PRODUCT.  
2.3No Modifications. You may not modify, translate or create derivative  
works of the SOFTWARE PRODUCT.  
2.4Proprietary Notices. You may not remove or obscure any proprietary  
notices, identification, label or trademarks on or in the SOFTWARE PROD-  
UCT or the supporting documentation.  
2.5Software Transfer. You may permanently transfer all of your rights under  
this Agreement in connection with transfer of the PRODUCT, provided you  
retain no copies, you transfer all of the SOFTWARE PRODUCT (including all  
component parts, the media and printed materials, any upgrades, this Agree-  
ment, and, if applicable, the Certificate of Authenticity), and the recipient  
agrees to the terms of this Agreement. If the SOFTWARE PRODUCT is an  
upgrade, any transfer must include all prior versions of the SOFTWARE  
PRODUCT. However, if the SOFTWARE PRODUCT is marked “Not for  
Resale” or “NFR”, you may not resell it or otherwise transfer it for value.  
2
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Regulatory Notices  
2.6Copyright. All title and copyrights in and to the SOFTWARE PRODUCT  
(including but not limited to any images, photographs, animations, video,  
audio, music, text, and “applets” incorporated into the SOFTWARE PROD-  
UCT), the accompanying printed materials, and any copies of the SOFTWARE  
PRODUCT are owned by POLYCOM or its suppliers. Title, ownership rights,  
and intellectual property rights in the SOFTWARE PRODUCT shall remain in  
POLYCOM or its suppliers. Title and related rights in the content accessed  
through the SOFTWARE PRODUCT is the property of such content owner  
and may be protected by applicable law. This Agreement gives you no rights  
in such content.  
2.7Confidentiality. The SOFTWARE PRODUCT contains valuable proprietary  
information and trade secrets of POLYCOM and its suppliers that remains the  
property of POLYCOM. You shall protect the confidentiality of, and avoid  
disclosure and unauthorized use of, the SOFTWARE PRODUCT.  
2.8Dual-Media Software. You may receive the SOFTWARE PRODUCT in  
more than one medium. Regardless of the type or size of medium you receive,  
you may use only one medium that is appropriate for your single PRODUCT.  
You may not use or install the other medium on another PRODUCT.  
2.9Reservation of Rights. POLYCOM reserves all rights in the SOFTWARE  
PRODUCT not expressly granted to you in this Agreement.  
2.10Additional Obligations. You are responsible for all equipment and any  
third party fees (such as carrier charges, internet fees, or provider or airtime  
charges) necessary to access the SOFTWARE PRODUCT.  
3.SUPPORT SERVICES. POLYCOM may provide you with support services  
related to the SOFTWARE PRODUCT (“SUPPORT SERVICES “). Use of SUP-  
PORT SERVICES is governed by the POLYCOM policies and programs  
described in the POLYCOM-provided materials. Any supplemental software  
code provided to you as part of the SUPPORT SERVICES is considered part of  
the SOFTWARE PRODUCT and is subject to the terms and conditions of this  
Agreement. With respect to technical information you provide to POLYCOM  
as part of the SUPPORT SERVICES, POLYCOM may use such information for  
its business purposes, including for product support and development.  
POLYCOM will not utilize such technical information in a form that person-  
ally identifies you.  
4.TERMINATION. Without prejudice to any other rights, POLYCOM may ter-  
minate this Agreement if you fail to comply with any of the terms and condi-  
tions of this Agreement. In such event, you must destroy all copies of the  
SOFTWARE PRODUCT and all of its component parts. You may terminate  
this Agreement at any time by destroying the SOFTWARE PRODUCT and all  
of its component parts. Termination of this Agreement shall not prevent  
POLYCOM from claiming any further damages. If you do not comply with  
any of the above restrictions, this license will terminate and you will be liable  
to POLYCOM for damages or losses caused by your non-compliance. The  
waiver by POLYCOM of a specific breach or default shall not constitute the  
waiver of any subsequent breach or default.  
5.UPGRADES. If the SOFTWARE PRODUCT is labeled as an upgrade, you  
must be properly licensed to use the software identified by POLYCOM as  
being eligible for the upgrade in order to use the SOFTWARE PRODUCT. A  
SOFTWARE PRODUCT labeled as an upgrade replaces and/or supplements  
the software that formed the basis for your eligibility for the upgrade. You  
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may use the resulting upgraded SOFTWARE PRODUCT only in accordance  
with the terms of this Agreement. If the SOFTWARE PRODUCT is an  
upgrade of a component of a package of software programs that you licensed  
as a single product, the SOFTWARE PRODUCT may be used and transferred  
only as part of that single SOFTWARE PRODUCT package and may not be  
separated for use on more than one PRODUCT.  
6.WARRANTY AND WARRANTY EXCLUSIONS.  
6.1Limited Warranty. POLYCOM warrants that (a) the SOFTWARE PROD-  
UCT will perform substantially in accordance with the accompanying docu-  
mentation for a period of ninety (90) days from the date of receipt by you, and  
(b) any SUPPORT SERVICES provided by POLYCOM shall be substantially  
as described in applicable written materials provided to you by POLYCOM.  
POLYCOM does not warrant that your use of the SOFTWARE PRODUCT will  
be uninterrupted or error free, or that all defects in the SOFTWARE PROD-  
UCT will be corrected. You assume full responsibility for the selection of the  
SOFTWARE PRODUCT to achieve your intended results and for the installa-  
tion, use and results obtained from the SOFTWARE PRODUCT. POLYCOM's  
sole obligation under this express warranty shall be, at POLYCOM's option  
and expense, to refund the purchase price paid by you for any defective soft-  
ware product which is returned to POLYCOM with a copy of your receipt, or  
to replace any defective media with software which substantially conforms to  
applicable POLYCOM published specifications. Any replacement SOFT-  
WARE PRODUCT will be warranted for the remainder of the original war-  
ranty period or thirty (30) days, whichever is longer.  
6.2Warranties Exclusive. IF THE SOFTWARE PRODUCT DOES NOT OPER-  
ATE AS WARRANTED ABOVE, YOUR SOLE REMEDY FOR BREACH OF  
THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF  
THE PURCHASE PRICE PAID, AT POLYCOM'S SOLE OPTION. TO THE  
FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES  
AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER  
WARRANTIES, TERMS, OR CONDITIONS, EXPRESS OR IMPLIED, EITHER  
IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE,  
INCLUDING WARRANTIES, TERMS, OR CONDITIONS OF MERCHANT-  
ABILITY, FITNESS FOR A PARTICULAR PURPOSE, SATISFACTORY  
QUALITY, CORRESPONDENCE WITH DESCRIPTION, AND  
NON-INFRINGEMENT, ALL OF WHICH ARE EXPRESSLY DISCLAIMED.  
POLYCOM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PER-  
SON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION  
WITH THE SALE, INSTALLATION, MAINTENANCE OR USE OF THE  
SOFTWARE PRODUCT. NO ADVICE OR INFORMATION, WHETHER  
ORAL OR WRITTEN, OBTAINED BY YOU FROM POLYCOM OR  
THROUGH OR FROM THE SOFTWARE PRODUCT SHALL CREATE ANY  
WARRANTY NOT EXPRESSLY STATED IN THIS AGREEMENT.  
POLYCOM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS  
TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT  
OR MALFUNCTION IN THE SOFTWARE PRODUCT DOES NOT EXIST OR  
WAS CAUSED BY YOUR OR ANY THIRD PARTY'S MISUSE, NEGLECT,  
IMPROPER INSTALLATION OR TESTING, UNAUTHORIZED ATTEMPTS  
TO MODIFY THE PRODUCT, OR ANY OTHER CAUSE BEYOND THE  
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RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING,  
POWER CUTS OR OUTAGES, OTHER HAZARDS, OR ACTS OF GOD.  
7.LIMITATION OF LIABILITY. YOUR USE OF THE SOFTWARE PRODUCT  
IS AT YOUR SOLE RISK. YOU WILL BE SOLELY RESPONSIBLE FOR ANY  
DAMAGE TO YOUR COMPUTER SYSTEM OR LOSS OF DATA THAT  
RESULTS FROM THE DOWNLOAD OR USE OF THE SOFTWARE PROD-  
UCT. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN  
NO EVENT SHALL POLYCOM OR ITS SUPPLIERS BE LIABLE FOR ANY  
SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES  
WHATSOEVER (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR  
LOSS OF BUSINESS PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSI-  
NESS INFORMATION, OR ANY OTHER PECUNIARY LOSS) ARISING  
OUT OF THE USE OF OR INABILITY TO USE THE SOFTWARE PRODUCT  
OR THE PROVISION OF OR FAILURE TO PROVIDE SUPPORT SERVICES,  
EVEN IF POLYCOM HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES. IN ANY CASE, POLYCOM'S ENTIRE LIABILITY SHALL BE  
LIMITED TO THE GREATER OF THE AMOUNT ACTUALLY PAID BY YOU  
FOR THE SOFTWARE PRODUCT OR U.S. $5.00. PROVIDED, HOWEVER, IF  
YOU HAVE ENTERED INTO A POLYCOM SUPPORT SERVICES AGREE-  
MENT, POLYCOM'S ENTIRE LIABILITY REGARDING SUPPORT SER-  
VICES SHALL BE GOVERNED BY THE TERMS OF THAT AGREEMENT.  
8.INDEMNITY. You agree to indemnify and hold harmless POLYCOM and its  
subsidiaries, affiliates, officers, agents, co-branders, customers or other part-  
ners, and employees, from any loss, claim or demand, including reasonable  
attorneys' fees, made by any third party due to or arising out of your use of  
the SOFTWARE PRODUCT, your connection to the SOFTWARE PRODUCT,  
or your violation of the Terms.  
9.DISCLAIMER. Some countries, states, or provinces do not allow the exclu-  
sion or limitation of implied warranties or the limitation of incidental or con-  
sequential damages for certain products supplied to consumers, or the  
limitation of liability for personal injury, so the above limitations and exclu-  
sions may be limited in their application to you. When the implied warranties  
are not allowed to be excluded in their entirety due to local law, they will be  
limited to the duration of the applicable warranty.  
10. EXPORT CONTROLS. The SOFTWARE PRODUCT may not be down-  
loaded or otherwise exported or re-exported (i) into (or to a national or resi-  
dent of) Cuba, Iraq, Libya, North Korea, Yugoslavia, Iran, Syria, Republic of  
Serbia, or any other country to which the U.S. has embargoed goods; or (ii) to  
anyone on the U.S. Treasury Department's list of Specially Designated  
Nationals or the U.S. Commerce Department's Table of Denial Orders. By  
downloading or using the SOFTWARE PRODUCT, you are agreeing to the  
foregoing and you are representing and warranting that you are not located  
in, under the control of, or a national or resident of any such country or on  
any such list. If you obtained this SOFTWARE PRODUCT outside of the  
United States, you are also agreeing that you will not export or re-export it in  
violation of the laws of the country in which it was obtained.  
11.MISCELLANEOUS.  
11.1Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY THE  
LAWS OF THE STATE OF CALIFORNIA AS SUCH LAWS ARE APPLIED TO  
AGREEMENTS ENTERED INTO AND TO BE PERFORMED ENTIRELY  
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WITHIN CALIFORNIA BETWEEN CALIFORNIA RESIDENTS, AND BY  
THE LAWS OF THE UNITED STATES. The United Nations Convention on  
Contracts for the International Sale of Goods (1980) is hereby excluded in its  
entirety from application to this Agreement.  
11.2Entire Agreement. This Agreement represents the complete agreement  
concerning the SOFTWARE PRODUCT and may be amended only by a writ-  
ing executed by both parties. If any provision of this Agreement is held to be  
unenforceable, such provision shall be reformed only to the extent necessary  
to make it enforceable.  
11.3Contact. If you have any questions concerning this Agreement, or if you  
desire to contact POLYCOM for any reason, please contact the POLYCOM  
office serving your country.  
11.4U.S. Government Restricted Rights. The SOFTWARE PRODUCT and doc-  
umentation are provided with RESTRICTED RIGHTS. The SOFTWARE  
PRODUCT programs and documentation are deemed to be “commercial  
computer software” and “commercial computer software documentation”,  
respectively, pursuant to DFAR Section 227.7202 and FAR 12.212(b), as appli-  
cable. Any use, modification, reproduction, release, performance, display or  
disclosure of the SOFTWARE PRODUCT programs and/or documentation by  
the U.S. Government or any of its agencies shall be governed solely by the  
terms of this Agreement and shall be prohibited except to the extent expressly  
permitted by the terms of this Agreement. Any technical data provided that is  
not covered by the above provisions is deemed to be “technical data-commer-  
cial items” pursuant to DFAR Section 227.7015(a). Any use, modification,  
reproduction, release, performance, display or disclosure of such technical  
data shall be governed by the terms of DFAR Section 227.7015(b).  
BY INSTALLING, COPYING, OR OTHERWISE USING THIS SOFTWARE  
PRODUCT YOU ACKNOWLEDGE THAT YOU HAVE READ, UNDER-  
STAND AND AGREE TO BE BOUND BY THE TERMS AND CONDITIONS  
INDICATED ABOVE.  
Polycom, Inc. © 2007. ALL RIGHTS RESERVED.  
4750 Willow Road  
Pleasanton, CA 94588  
U.S.A.  
Software included in this product contains a module called PsyVoIP which is  
protected by copyright and by European, US and other patents and is pro-  
vided under licence from Psytechnics Limited.  
Portions of this product also include software sponsored by the Free Software  
Foundation and are covered by the GNU GENERAL PUBLIC LICENSE:  
GNU GENERAL PUBLIC LICENSE  
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODI-  
FICATION  
This License applies to any program or other work which contains a notice  
placed by the copyright holder saying it may be distributed under the terms  
of this General Public License. The “Program”, below, refers to any such pro-  
gram or work, and a “work based on the Program” means either the Program  
or any derivative work under copyright law: that is to say, a work containing  
the Program or a portion of it, either verbatim or with modifications and/or  
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translated into another language. (Hereinafter, translation is included without  
limitation in the term “modification”.) Each licensee is addressed as “you”.  
Activities other than copying, distribution and modification are not covered  
by this License; they are outside its scope. The act of running the Program is  
not restricted, and the output from the Program is covered only if its contents  
constitute a work based on the Program (independent of having been made  
by running the Program).  
Whether that is true depends on what the Program does.  
1.You may copy and distribute verbatim copies of the Program's source code  
as you receive it, in any medium, provided that you conspicuously and  
appropriately publish on each copy an appropriate copyright notice and dis-  
claimer of warranty; keep intact all the notices that refer to this License and to  
the absence of any warranty; and give any other recipients of the Program a  
copy of this License along with the Program.  
You may charge a fee for the physical act of transferring a copy, and you may  
at your option offer warranty protection in exchange for a fee.  
2. You may modify your copy or copies of the Program or any portion of it,  
thus forming a work based on the Program, and copy and distribute such  
modifications or work under the terms of Section 1 above, provided that you  
also meet all of these conditions:  
a) You must cause the modified files to carry prominent notices stating that  
you changed the files and the date of any change.  
b) You must cause any work that you distribute or publish, that in whole  
or in part contains or is derived from the Program or any part thereof, to  
be licensed as a whole at no charge to all third parties under the terms of  
this License.  
c) If the modified program normally reads commands interactively when  
run, you must cause it, when started running for such interactive use in  
the most ordinary way, to print or display an announcement including  
an appropriate copyright notice and a notice that there is no warranty  
(or else, saying that you provide a warranty) and that users may  
redistribute the program under these conditions, and telling the user  
how to view a copy of this License. (Exception: if the Program itself is  
interactive but does not normally print such an announcement, your  
work based on the Program is not required to print an announcement.)  
These requirements apply to the modified work as a whole. If identifiable sec-  
tions of that work are not derived from the Program, and can be reasonably  
considered independent and separate works in themselves, then this License,  
and its terms, do not apply to those sections when you distribute them as sep-  
arate works. But when you distribute the same sections as part of a whole  
which is a work based on the Program, the distribution of the whole must be  
on the terms of this License, whose permissions for other licensees extend to  
the entire whole, and thus to each and every part regardless of who wrote it.  
Thus, it is not the intent of this section to claim rights or contest your rights to  
work written entirely by you; rather, the intent is to exercise the right to con-  
trol the distribution of derivative or collective works based on the Program.  
In addition, mere aggregation of another work not based on the Program with  
the Program (or with a work based on the Program) on a volume of a storage  
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V2IU 4350 Converged Network Appliance User Manual  
or distribution medium does not bring the other work under the scope of this  
License.  
3. You may copy and distribute the Program (or a work based on it, under  
Section 2) in object code or executable form under the terms of Sections 1 and  
2 above provided that you also do one of the following:  
a) Accompany it with the complete corresponding machine-readable  
source code, which must be distributed under the terms of Sections 1  
and 2 above on a medium customarily used for software interchange; or,  
b) Accompany it with a written offer, valid for at least three years, to give  
any third party, for a charge no more than your cost of physically  
performing source distribution, a complete machine-readable copy of  
the corresponding source code, to be distributed under the terms of  
Sections 1 and 2 above on a medium customarily used for software  
interchange; or,  
c) Accompany it with the information you received as to the offer to  
distribute corresponding source code. (This alternative is allowed only  
for noncommercial distribution and only if you received the program in  
object code or executable form with such an offer, in accord with  
Subsection b above.)  
The source code for a work means the preferred form of the work for making  
modifications to it. For an executable work, complete source code means all  
the source code for all modules it contains, plus any associated interface defi-  
nition files, plus the scripts used to control compilation and installation of the  
executable. However, as a special exception, the source code distributed need  
not include anything that is normally distributed (in either source or binary  
form) with the major components (compiler, kernel, and so on) of the operat-  
ing system on which the executable runs, unless that component itself accom-  
panies the executable.  
If distribution of executable or object code is made by offering access to copy  
from a designated place, then offering equivalent access to copy the source  
code from the same place counts as distribution of the source code, even  
though third parties are not compelled to copy the source along with the  
object code.  
4. You may not copy, modify, sublicense, or distribute the Program except as  
expressly provided under this License. Any attempt otherwise to copy, mod-  
ify, sublicense or distribute the Program is void, and will automatically termi-  
nate your rights under this License. However, parties who have received  
copies, or rights, from you under this License will not have their licenses ter-  
minated so long as such parties remain in full compliance.  
5. You are not required to accept this License, since you have not signed it.  
However, nothing else grants you permission to modify or distribute the Pro-  
gram or its derivative works. These actions are prohibited by law if you do  
not accept this License. Therefore, by modifying or distributing the Program  
(or any work based on the Program), you indicate your acceptance of this  
License to do so, and all its terms and conditions for copying, distributing or  
modifying the Program or works based on it.  
6. Each time you redistribute the Program (or any work based on the Pro-  
gram), the recipient automatically receives a license from the original licensor  
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to copy, distribute or modify the Program subject to these terms and condi-  
tions. You may not impose any further restrictions on the recipients' exercise  
of the rights granted herein.  
You are not responsible for enforcing compliance by third parties to this  
License.  
7. If, as a consequence of a court judgment or allegation of patent infringe-  
ment or for any other reason (not limited to patent issues), conditions are  
imposed on you (whether by court order, agreement or otherwise) that con-  
tradict the conditions of this License, they do not excuse you from the condi-  
tions of this License. If you cannot distribute so as to satisfy simultaneously  
your obligations under this  
License and any other pertinent obligations, then as a consequence you may  
not distribute the Program at all. For example, if a patent license would not  
permit royalty-free redistribution of the Program by all those who receive  
copies directly or indirectly through you, then the only way you could satisfy  
both it and this License would be to refrain entirely from distribution of the  
Program.  
If any portion of this section is held invalid or unenforceable under any par-  
ticular circumstance, the balance of the section is intended to apply and the  
section as a whole is intended to apply in other circumstances.  
It is not the purpose of this section to induce you to infringe any patents or  
other property right claims or to contest validity of any such claims; this sec-  
tion has the sole purpose of protecting the integrity of the free software distri-  
bution system, which is implemented by public license practices. Many  
people have made generous contributions to the wide range of software dis-  
tributed through that system in reliance on consistent application of that sys-  
tem; it is up to the author/donor to decide if he or she is willing to distribute  
software through any other system and a licensee cannot impose that choice.  
This section is intended to make thoroughly clear what is believed to be a con-  
sequence of the rest of this License.  
8. If the distribution and/or use of the Program is restricted in certain coun-  
tries either by patents or by copyrighted interfaces, the original copyright  
holder who places the Program under this License may add an explicit geo-  
graphical distribution limitation excluding those countries, so that distribu-  
tion is permitted only in or among countries not thus excluded. In such case,  
this License incorporates the limitation as if written in the body of this  
License.  
9. The Free Software Foundation may publish revised and/or new versions of  
the General Public License from time to time. Such new versions will be simi-  
lar in spirit to the present version, but may differ in detail to address new  
problems or concerns.  
Each version is given a distinguishing version number. If the Program speci-  
fies a version number of this License which applies to it and “any later ver-  
sion”, you have the option of following the terms and conditions either of that  
version or of any later version published by the Free Software Foundation. If  
the Program does not specify a version number of this License, you may  
choose any version ever published by the Free Software Foundation.  
10. If you wish to incorporate parts of the Program into other free programs  
whose distribution conditions are different, write to the author to ask for per-  
mission. For software which is copyrighted by the Free Software Foundation,  
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write to the Free Software Foundation; we sometimes make exceptions for  
this. Our decision will be guided by the two goals of preserving the free status  
of all derivatives of our free software and of promoting the sharing and reuse  
of software generally.  
NO WARRANTY  
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS  
NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY  
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING  
THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE  
PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER  
EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE  
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A  
PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND  
PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PRO-  
GRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECES-  
SARY SERVICING, REPAIR OR CORRECTION.  
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR  
AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY  
OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PRO-  
GRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,  
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUEN-  
TIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE  
PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR  
DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY  
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPER-  
ATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR  
OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH  
DAMAGES.  
END OF TERMS AND CONDITIONS  
FCC PART 68 NOTICE TO USERS OF DIGITAL SERVICE  
This equipment complies with Part 68 of the FCC Rules and the requirements  
adopted by ACTA. On the bottom surface of this equipment is a label that  
contains, among other information, a product identifier in the format US:  
EWRDENAN4300T. If requested, this number must be provided to the  
telephone company.  
The following instructions are provided to ensure compliance with the Federal  
Communications Commission (FCC) Rules, Part 68.  
(1)  
This device must only be connected to the T1 WAN network.  
(2) Before connecting your unit, you must inform the telephone company of  
the following information:  
Port ID REN/SOC FIC USOC  
T1 WAN 04DU9-DN, 04DU9-BN 6.0N RJ48C  
10  
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(3) If the unit appears to be malfunctioning, it should be disconnected from  
the telephone lines until you learn if your equipment or the telephone line is  
the source of the trouble. If your equipment needs repair, it should not be  
reconnected until it is repaired.  
(4) If the telephone company finds that this equipment is exceeding tolerable  
parameters, the telephone company can temporarily disconnect service,  
although they will attempt to give you advance notice if possible.  
(5)  
Under the FCC Rules, no customer is authorized to repair this  
equipment. This restriction applies regardless of whether the equipment is in  
or out of warranty.  
(6)  
If the telephone company alters their equipment in a manner that will  
affect use of this device, they must give you advance warning so as to give you  
the opportunity for uninterrupted service. You will be advised of your right to  
file a complaint with the FCC.  
(7)  
In the event of equipment malfunction, all repairs should be  
performed by our Company or an authorized agent. It is the responsibility of  
users requiring service to report the need for service to our Company or to one  
of our authorized agents.  
INDUSTRY CANADA (IC) NOTICE  
This equipment meets the applicable Industry Canada Terminal Equipment  
Technical Specifications. This is confirmed by the registration number. The  
abbreviation, IC, before the registration number signifies that registration was  
performed based on a Declaration of Conformity indicating that Industry  
Canada technical specifications were met. It does not imply that Industry  
Canada approved the equipment.  
Before installing this equipment, users should ensure that it is permissible to  
be connected to the facilities of the local telecommunications company. The  
equipment must also be installed using an acceptable method of connection.  
The customer should be aware that compliance with the above conditions  
may not prevent degradation of service in some situations.  
Repairs to certified equipment should be coordinated by a representative des-  
ignated by the supplier. Any repairs or alterations made by a user to this  
equipment, or equipment malfunctions, may give the telephone communica-  
tions company cause to request the user to disconnect the equipment.  
Users should ensure for their own protection, that the electrical ground con-  
nections of the power utility, telephone lines and internal metallic water pipe  
system, if present, are connected together. This precaution may be particu-  
larly important in rural areas”.  
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V2IU 4350 Converged Network Appliance User Manual  
Caution  
Users should not attempt to make such connections themselves, but should contact  
the appropriate electric inspection authority, or electrician, as appropriate.”  
WARRANTY AND REPAIR SERVICE CENTER:  
The RAM Group  
Kent McDonald  
[email protected]  
(403) 266-5840 x 100  
This Class (B) digital apparatus complies with Canadian ICES-003.  
12  
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