Multi Tech Systems Network Card MVP400 User Manual

Standalone Voice/IP Gateway  
Model MVP400 and MVP800  
H.323 Mode  
Quick Start Guide  
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Contents  
Introduction ................................................................................... 4  
Related Documentation ................................................................. 5  
Installing Your MultiVOIP............................................................... 6  
Installing and Configuring Your MultiVOIP .............................. 6  
Deploying the VOIP Network .................................................. 7  
Unpacking Your MultiVOIP ............................................................ 8  
Safety Warnings ............................................................................ 8  
Cabling Procedure ........................................................................ 9  
E&M Jumper Block Positioning Procedure ............................11  
Installing Your MultiVOIP 400/800 .............................................. 12  
Configuring Your MultiVOIP 400/800........................................... 17  
Registering with a Gatekeeper Phone Directory ................... 28  
Building a Proprietary Phonebook Directory ......................... 34  
Configuring Your Slave MultiVOIP 400/800s ........................ 46  
Deploying the VOIP Network....................................................... 59  
Remote Site Administrator .................................................... 59  
Limited Warranty ......................................................................... 62  
Technical Support........................................................................ 63  
FCC Declaration.......................................................................... 63  
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MultiVOIP Quick Start Guide  
Introduction  
Welcome to Multi-Tech's new stand-alone Voice/IP Gateways  
which allow analog voice and fax communication over an IP  
network. The MultiVOIP model numbers are MVP400 for the  
four-channel unit and MVP800 for the eight-channel unit. Multi-  
Tech’s voice/fax gateway technology allows voice/fax  
communication to be transmitted with no additional expense  
over your existing IP network, which has traditionally been  
data-only. To access this free voice and fax communication, all  
you have to do is connect your MultiVOIP to your telephone  
equipment and then to your existing Internet connection. Once  
configured, the MultiVOIP allows voice and fax to travel down  
the same path as your traditional data communications.  
The MultiVOIP 400/800 supports the H.323 standards-based  
protocol enabling your MultiVOIP 400/800 to participate in real-  
time conferencing with other third-party VOIP Gateways or  
other endpoints that support the H.323 protocol (for example,  
Microsoft Netmeeting® ). The H.323 standard defines how  
endpoints make and receive calls, how endpoints negotiate a  
common set of audio and data capabilities, how information is  
formatted and sent over the network. This version of the  
software also supports optional H.323 GateKeeper software  
residing on a PC which, when enabled, maintains its own  
phone book database, preregisters all users, controls the  
bandwidth, and handles all conferencing issues such as  
transferring of calls.  
Figure 1. MultiVOIP  
The MVP400 is designed with four voice/fax channels  
(offering three voice/fax interfaces per channel), a 10 Mbps  
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Introduction  
Ethernet LAN interface, and a command port configuration.  
The MVP800 is designed with eight voice/fax channels, 10  
Mbps Ethernet LAN interface, and command port.  
System management is provided through the Command port  
using bundled Windows® software which provides easy-to-use  
configuration menus and comprehensive online Help.  
Note: Refer to the MultiVOIP 400/800 User Guide for a  
detailed description of a typical VOIP application.  
Related Documentation  
The MultiVOIP 400/800 Quick Start Guide is intended to be  
used by qualified systems administrators and network  
managers. This Quick Start Guide provides the necessary  
information for a qualified person to unpack, cable, load  
software, and configure the unit for proper operation.  
A detailed MultiVOIP 400/800 User Guide is included on your  
system CD and provides in-depth information on the features  
and functionality of Multi-Tech’s MultiVOIP 400/800.  
The CD media is produced using Adobe AcrobatTM for viewing  
and printing the user guide. To view or print your copy of a  
user guide, load Acrobat ReaderTM on your system. The  
Acrobat Reader is a free download from Adobe’s Web site:  
The MultiVOIP 400/800 User Guide is also available on Multi-  
Tech’s Web site at:  
Viewing and printing a user guide from the Web also requires  
that you have Acrobat Reader loaded on your system. To  
select the MultiVOIP 400/800 User Guide from the Multi-Tech  
Systems home page, click Documents and then click MultiVOIP  
Manuals. Select the User Guide from the MVP800 group to view  
or download the .pdf file.  
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MultiVOIP Quick Start Guide  
Installing Your MultiVOIP  
The basic steps of installing your MultiVOIP network involve  
unpacking the units, connecting the cables, and configuring  
the units using the included management software (MultiVOIP  
Configuration). This process results in a fully functional Voice  
Over IP network. A brief description is provided below with  
detailed instructions provided later.  
Installing and Configuring Your MultiVOIP  
The VOIP administrator must first install the MultiVOIP  
software and then configure each MultiVOIP 400/800 for its  
specific function. During the configuration process, it’s  
important to note that the Phone Directory Database is  
configured differently depending on whether or not you have  
GateKeeper support on your VOIP network.  
If your VOIP network supports GateKeeper software, you must  
register all H.323 endpoints with the GateKeeper. The  
procedure for doing this is explained in the section  
“Registering with a GateKeeper Phone Directory.”  
If your VOIP network does not have GateKeeper software or  
the GateKeeper software is not enabled, then you must build a  
proprietary phone book with a “Master” MultiVOIP 400/800 and  
“Slave” MultiVOIP 400/800s. The “Master” unit includes the  
assignment of a unique LAN IP address, subnet mask, and  
Gateway IP address, as well as the selection of appropriate  
channel interface type for each of the Voice/Fax channels.  
Once all connections have been made, the VOIP administrator  
configures the unit and builds the Phone Directory Database  
that will reside with the Master unit.  
Once configuration of the “Master” MultiVOIP 400/800 has  
been completed, the administrator moves on to configure the  
MultiVOIP 400/800(s) designated as “Slave” units. Again,  
unique LAN IP addresses, subnet masks, and Gateway IP  
addresses are assigned, and each Voice/Fax channel is  
configured for the appropriate channel interface type. When  
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Introduction  
this is done, the Phone Directory Database option is set to  
Slave, and the IP address of the Master MultiVOIP 400/800 is  
entered. Once all Slave units are configured, the process  
moves on to the “Deploying the VOIP Network” section.  
Deploying the VOIP Network  
The final phase of the installation is deployment of the  
network. When the remote MultiVOIP 400/800s are sent to  
their remote sites, the remote site administrators need only  
connect the units to their LAN and telephone equipment. A full  
Phone Directory Database (supplied by the Master MultiVOIP  
400/800 Proprietary Phonebook will be loaded into their units  
within minutes of being connected and powered up. For  
remote VOIPs that were configured with the Gatekeeper  
option enabled, each MultiVOIP 400/800 will be registered with  
the Gatekeeper (the Gatekeeper phonebook directory is NOT  
downloaded to the remote units).  
The final task of the VOIP administrator or the Gatekeeper  
administrator is to develop the VOIP Dialing Directory based  
on the appropriate phone directory database (the Proprietary  
phonebook database or the Gatekeeper phonebook  
database).  
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MultiVOIP Quick Start Guide  
Unpacking Your MultiVOIP  
Remove all items from the box.  
Voice/Fax over IP Networks  
Figure 2. Unpacking  
Safety Warnings  
Caution  
Danger of explosion if battery is incorrectly replaced.  
A lithium battery on the voice/fax channel board provides  
backup power for the time keeping capability. The battery has  
an estimated life expectancy of ten years.  
When the battery starts to weaken, the date and time may be  
incorrect. If the battery fails, the board must be sent back to  
Multi-Tech Systems for battery replacement.  
The E&M, FXS, and Ethernet ports are not designed to be  
connected to a Public Telecommunication Network.  
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Cabling  
Cabling Procedure  
Cabling involves connecting the master MultiVOIP to your LAN  
and telephone equipment.  
1. If you are connecting any Voice/Fax Channel to an E&M  
trunk other than type 2, perform the E&M Jumper Block  
Positioning procedure in the following section before  
connecting power to the unit.  
2. Connect one end of the power supply to a live AC outlet  
and connect the other end to the MultiVOIP as shown in  
Figure 3. The power connector is a 7-pin circular DIN  
connector.  
VOICE/  
FAX  
CHANNEL  
8
VOICE/  
FAX  
CHANNEL  
7
VOICE/  
FAX  
CHANNEL  
6
VOICE/  
FAX  
CHANNEL  
5
INTERNAL  
COMPOSITE  
LINK  
E&M  
FXO  
FXS  
E&M  
FXO  
FXS  
E&M  
FXO  
FXS  
E&M  
FXO  
FXS  
MONITOR  
XMT RCV  
VOICE/  
FAX  
CHANNEL  
4
VOICE/  
FAX  
CHANNEL  
3
VOICE/  
FAX  
CHANNEL  
2
VOICE/  
FAX  
CHANNEL  
1
T1 DSU  
GND  
I
10BASET  
COMMAND PORT  
CHANNEL 10  
CHANNEL  
8
7
CHANNEL  
6
5
CHANNEL  
CHANNEL  
4
3
CHANNEL  
CHANNEL  
2
1
(RS232/V.35)  
(RS232/V.35)  
POWER  
EXT. COMPOSITE LINK (RS232/V.35)  
ETHERNET  
CHANNEL  
9
CHANNEL  
CHANNEL  
O
Voice/Fax Channel 1 - 8  
Connections  
Power Connection  
E&M  
E&M  
FXS  
FXO  
FXS  
FXO  
Command Port Connection  
Ethernet Connection  
PSTN  
Figure 3. Cable Connections  
3. Connect the MultiVOIP to a PC by using a DB-9 to DB-25  
cable. Plug the DB-25 end of the cable into the  
Command port of the MultiVOIP and the other end into  
the serial port on the PC. See Figure 3.  
4. Connect a network cable to the ETHERNET 10BASET  
connector on the back of the MultiVOIP. Connect the other  
end of the cable to your network.  
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MultiVOIP Quick Start Guide  
5. If you are connecting a station device (analog telephone,  
fax machine, or Key Telephone System (KTS)) to your  
MultiVOIP, connect one end of an RJ11 phone cord to the  
Voice/Fax Channel 1 FXS connector on the back of the  
MultiVOIP and the other end to the station device.  
If you are connecting a PBX extension to your MultiVOIP,  
connect one end of an RJ11 phone cord to the Voice/Fax  
Channel 1 FXO connector on the back of the MultiVOIP  
and the other end to the PBX extension.  
If you are connecting an E&M trunk from a telephone  
switch to your MultiVOIP, connect one end of an RJ45  
phone cord to the Voice/Fax Channel 1 E&M connector  
on the back of the MultiVOIP and the other end to the  
trunk. Refer to the User Guide for E&M pin assignments.  
If you are connecting to an E&M trunk, you need to ensure  
that the E&M trunk jumper is in the correct position for the  
E&M type trunk. The default E&M jumper position is E&M  
type 2. To change the E&M jumper position, perform the  
E&M jumper block positioning procedure in the following  
section.  
6. Repeat the above step to connect the remaining telephone  
equipment to each Voice/Fax Channel on your MultiVOIP.  
7. Turn on power to the MultiVOIP by placing the ON/OFF  
switch on the back panel to the ON position. Wait for the  
BTG LED on the MultiVOIP to go OFF before proceeding.  
This may take a couple minutes.  
If you need to change the E&M Jumper Block positioning, refer  
to the following section. Otherwise, proceed to the Installing  
the Software section to load the MultiVOIP software.  
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Cabling  
E&M Jumper Block Positioning Procedure  
A jumper block exists for each voice/fax channel. The jumper  
block is to the right of each set of channel jacks. The jumper  
block contains 8 pairs of pins. The jumper plug fits over three  
pairs of pins on the jumper block. The E&M type number is  
labeled on the pc board. The jumper plug must be centered on  
the E&M type number. To change E&M jumper position:  
1. Verify that power is disconnected from the MultiVOIP.  
2. Remove the front panel by removing the two Phillips  
quarter turn screws.  
3. Remove the six screws and slide the top cover backward off  
the chassis to expose the rear panel.  
4. To change a jumper position, lift the jumper plug up off the  
jumper block and move to the new position, ensuring that the  
center jumper is centered on the E&M type number.  
2 (Default)  
1,3  
4
5
Figure 4. E&M Jumper Block Positions  
5. Change the jumper position for each voice/fax channel  
connecting to an E&M trunk that is not a type 2. If you  
have two voice/fax channel boards in your unit and you  
need to change the jumpers on the second board, remove  
the six screws from the top board and disconnect the  
ribbon cable from the top board.  
6. Slide the top cover back on to the chassis and fasten the  
six screws.  
7. Replace the front panel and fasten the two Phillips quarter  
turn screws.  
8. Return to the Cabling Procedure section.  
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MultiVOIP Quick Start Guide  
Installing Your MultiVOIP 400/800  
The following installation procedures do not provide every  
screen or option in the process of installing the MultiVOIP 400/  
800 software. It is assumed that a technical person with a  
thorough knowledge of Windows and the software loading  
process is doing the installation. Once you have installed the  
software, you will be instructed on how to configure your  
MultiVOIP 400/800, and finally, on how to deploy your  
MultiVOIP 400/800. Additional information on the MultiVOIP  
400/800 software is provided in the Help.  
Note: The phonebook directory configuration process is  
different depending on whether or not you have an enabled  
H.323 Gatekeeper resident in your network. The “Configuring  
Your MultiVOIP 400/800” section will explain these differences.  
The MultiVOIP 400/800 software and User Guide are  
contained on the MultiVOIP 400/800 CD. The CD is auto-  
detectable, so when you insert it into your CD ROM drive it will  
start up automatically. When you have finished configuring  
your MultiVOIP 400/800, you can view and print the User  
Guide by clicking the Install Manuals icon.  
CAUTION: If you are installing a MultiVOIP 400/800 behind a  
firewall, the Firewall must support H.323. Refer to your  
Firewall user documentation to enable H.323 support.  
1. Make certain that your MultiVOIP 400/800 has been  
properly cabled and that it is powered on.  
2. Insert the MultiVOIP 400/800 CD into your CD-ROM drive.  
The CD should start automatically. It may take 10 to 20  
seconds for the MultiTech CD installation window to  
display.  
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Installing the Software  
If the Multi-Tech Installation CD window does not display  
automatically, click My Computer, then right click the CD  
ROM drive icon, click Open, and then click the Autorun  
icon.  
3. When the Multi-Tech Installation CD dialog box displays,  
click the Install Software icon.  
4. The MultiVOIP 800 Setup welcome dialog box displays.  
Press Enter or click Next to continue.  
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MultiVOIP Quick Start Guide  
5. The Choose Destination Location dialog box displays.  
Follow the on-screen instructions.  
You can either choose the Destination Location of your  
MultiVOIP 400/800 software or select the default  
destination by clicking Next. Click Browse if you want to  
select a different destination folder for the MultiVOIP 400/  
800 software.  
6. The Select Program Folder dialog box enables you to  
choose where you want the program file to be located.  
Verify the path and click Next to continue.  
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Installing the Software  
7. The MultiVOIP 800 Setup dialog box displays. This dialog  
box enables you to select the COM port of your PC that is  
connected to the Command port of the MultiVOIP 400/800.  
From the Select Port list, select the COM port of your PC.  
Click OK to continue.  
8. The Setup Complete dialog displays.  
Click Finish to continue.  
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MultiVOIP Quick Start Guide  
9. The following message displays:  
Click Yes to continue.  
10. The following message displays:  
Click Yes to continue.  
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Configuring the MultiVOIP  
Configuring Your MultiVOIP 400/800  
The following steps provide instructions for configuring your  
MultiVOIP 400/800. The configuration sequence includes IP  
Protocol default setup, Channel setup, and Phone Directory  
Database setup. The Phone Directory Database setup is  
configured differently depending on whether or not the  
Gatekeeper function is available and enabled on the Phone  
Directory Database dialog box (see Step 26).  
11. The IP Protocol Default Setup dialog box displays.  
The default Frame Type is TYPE_II. If this does not match  
your IP network, change the Frame Type by selecting  
SNAP from the Frame Type list. The available Frame  
Type choices are TYPE_II and SNAP.  
12. In the Ethernet group, enter the IP Address, Subnet  
Mask, and Gateway Address unique to your IP LAN. The  
IP address is the unique LAN IP address that is assigned  
to the MultiVOIP 400/800, and the Gateway address is the  
IP address of the device connecting your MultiVOIP 400/  
800 to the Internet.  
Click OK when you are finished.  
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MultiVOIP Quick Start Guide  
13. The Channel Setup dialog box displays. The four tabs in  
this dialog box define the channel interface, voice/fax  
parameters, billing, miscellaneous, and regional telephone  
parameters for each channel.  
Configure each channel for the type of interface you are  
using. Channel 1 is selected by default in the Select  
Channel list. To change the channel number, select the  
channel you want to configure from the list.  
Note: Feature options are enabled or unavailable  
depending on the selected interface type. The one option  
available for all interface types is the Inter Digit Time  
option. This option defines the maximum amount of time  
that the unit will wait before mapping the dialed digits to an  
entry in the Phone Directory Database. If too much time  
elapses between digits, and the wrong numbers are  
mapped, you will hear a rapid busy signal. If this happens,  
hang up and dial again. The default setting is 2 seconds.  
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Configuring the MultiVOIP  
14. The Interface group defaults to FXS (Loop Start). Select  
the interface option that corresponds to the interface type  
being connected to the Voice/Fax Channel 1 jack on the  
back panel of the MultiVOIP 400/800.  
FXS (Loop Start): If a station device such as an analog  
telephone, fax machine, or KTS (Key Telephone System)  
is connected to the Voice/Fax connector on the back of the  
unit, FXS (Loop Start) will likely be the correct Interface.  
FXS (Ground Start): If the station device uses ground  
start, then choose the FXS (Ground Start) option. Refer to  
the device’s user documentation.  
For both FXS Loop Start and FXS Ground Start , the Ring  
Count FXS window allows you to set the maximum  
number of rings output on the FXS interface before  
hanging up and releasing the line to another call. The  
default setting is 8 rings.  
Note: Zero (0) means no rings; the caller hears a busy  
tone.  
FXO: If you are using an analog extension from your PBX,  
then choose the FXO option. Check with your in-house  
phone personnel to verify the connection type.  
If FXO is selected, the Dialing Options Regeneration,  
Flash Hook Timer, and Ring Count groups are enabled.  
Check with your local in-house phone personnel to verify  
whether your local PBX dial signaling is Pulse or tone  
(DTMF). Then, set the Regeneration option accordingly.  
The Flash Hook Timer allows you to enter the time, in  
milliseconds, for the duration of the flash hook signals  
output on the FXO interface. The default setting is 600  
milliseconds. The Ring Count FXO window allows you to  
set the number of rings received on the FXO interface  
before the MultiVOIP 400/800 answers the incoming call.  
The default setting is 2 rings.  
Note: Zero (0) means that the MultiVOIP 400/800 never  
answers.  
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MultiVOIP Quick Start Guide  
For FXO-to-FXO communications, you can enable a  
specific type of FXO Disconnect; Current Loss, Tone  
Detection, or Silence Detection. Check with your in-  
house phone personnel to verify the preferred type of  
disconnect to use. Enabling Tone Detection activates the  
Disconnect Tone Sequence options. For Disconnect Tone  
Sequence, you can select from lists either one or two  
tones that will cause the line to be disconnected. The  
person hanging up a call must then hit the key or keys that  
will produce those tones. For Silence Detection, select  
One Way or Two Way, then set the timer for the number  
of seconds of silence before disconnect. The default value  
of 15 seconds may be shorter than desired for your  
application.  
E&M: If you are connecting to an analog E&M trunk on  
your PBX, then choose the E&M interface option to enable  
the E&M Options group. Check with your local in-house  
phone personnel to determine if the signaling is Dial Tone  
or Wink and if the connection is 2-wire or 4-wire. If Wink  
signaling is used, then the Wink Timer is enabled with a  
default of 250 milliseconds. The range of the Wink Timer  
is from 100 to 350 milliseconds. Consult with your local in-  
house phone personnel for this timer setting.  
Note: After configuring a given channel, you can copy that  
channel’s configuration by clicking Copy. Everything on  
the Interface tab will be copied to the other channel.  
15. Repeat the above step to configure the interface type for  
each voice/fax channel.  
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Configuring the MultiVOIP  
16. The Voice/Fax tab displays the parameters for the voice  
gain, DTMF (Dual Tone Multi-Frequency) gain, voice  
coder, faxing, and advanced features such as Silence  
Compression, Echo Cancellation, and Forward Error  
Correction.  
17. You can set the input and output voice gain so that the  
volume can be increased or decreased. Input gain  
modifies the level of the audio coming in to the voice  
channel before it is sent over the Internet to the remote  
MultiVOIP 400/800. Output gain modifies the level of the  
audio being output to the device attached to the voice  
channel. Make your selections from the Input and Output  
lists in the Voice Gain group. The valid range is +31dB to  
–31dB with a recommended default value of 0.  
You can set up the DTMF gain (output level in decibels) for  
the higher and lower frequency groups of the DTMF tone  
pair. Make your selections from the High and Low lists in  
the DTMF Gain group. When the DTMF Out of Band  
check box is selected, the unit reproduces the DTMF  
tones instead of passing them through.  
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MultiVOIP Quick Start Guide  
Note: The DTMF gain should be changed only with the  
assistance of Multi-Tech Technical Support.  
18. To change the voice coder, select the channel from the  
Select Channel list, then click Manual in the Coder group.  
Select the new voice coder entry from the Selected Coder  
list.  
If you changed the voice coder, ensure that the same  
voice coder is used on the voice/fax channel you are  
calling. Otherwise, you will always get a busy signal.  
Note: If you allow the Coder to be selected automatically,  
then you need to enter the Max Bandwidth. Check with  
your network administrator to determine how much  
bandwidth is available.  
19. The Fax group enables you to send/receive faxes on the  
selected voice/fax channel. You can select the maximum  
baud rate for faxes and the fax volume and enter the jitter  
value in milliseconds.  
When receiving fax packets from a remote MultiVOIP 400/  
800, it is possible for individual packets to be delayed or  
received out of order due to traffic conditions on the  
network. To compensate for this effect, the MultiVOIP 400/  
800 uses a Jitter Buffer. The Jitter Value enables the  
MultiVOIP 400/800 to wait a user-definable period of time,  
in milliseconds, for delayed or out of order fax packets.  
The range of allowable Jitter Values is 0 to 400  
milliseconds, with a default of 400 milliseconds.  
If you do not plan to send or receive faxes on a given  
voice/fax channel, you can disable faxes in the Fax group.  
20. You can enable the voice/fax advanced features by  
clicking (checking) the silence compression, echo  
cancellation, or forward error correction options.  
The Silence Compression check box defines whether  
silence compression is enabled for this voice channel. If  
silence compression is enabled, the MultiVOIP 400/800  
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Configuring the MultiVOIP  
will not transmit voice packets when silence is detected,  
thereby reducing the amount of network bandwidth that is  
being used by the voice channel.  
The Echo Cancellation check box defines whether echo  
cancellation is enabled for this voice channel. If echo  
cancellation is enabled, the MultiVOIP 400/800 will remove  
echo which improves the quality of sound.  
The Forward Error Correction (FEC) check box defines  
whether forward error correction is enabled (checked) for  
this voice channel. The FEC feature allows some of the  
voice packets that were corrupted (or lost) to be  
recovered. FEC adds an additional 50% overhead to the  
total network bandwidth consumed by the voice channel.  
Note: After configuring a given channel, you can copy that  
channel’s configuration by clicking Copy. Everything on  
the Voice/Fax tab will be copied to the other channel.  
21. The Billing/Misc tab displays the parameters for auto call,  
automatic disconnection, billing options, and dynamic jitter  
buffer.  
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MultiVOIP Quick Start Guide  
If you want to dedicate a local voice/fax channel to a  
remote voice/fax channel (so you will not have to dial the  
remote channel), select the Auto Call Enable check box  
in the Auto Call group. Then enter the phone number of  
the remote MultiVOIP 400/800 in the Phone Number box.  
22. The Automatic Disconnection group provides three  
options to be used singly or in combination.  
The Jitter Value defines the average inter-arrival packet  
deviation (in milliseconds) before the call is automatically  
disconnected. Jitter is the inter-arrival packet deviation  
(phase shift of digital pulses) over the transmission  
medium that causes voice breakup which can be  
particularly disruptive to voice communications. The  
default setting is 20 milliseconds. A higher value means  
that the voice transmission will be more accepting of jitter.  
A lower value will be less tolerant of jitter.  
Consecutive Packets Lost defines the number of  
consecutive packets that are lost after which the call is  
automatically disconnected. The default setting is 30.  
Call Duration defines the maximum length of time (in  
seconds) that a call remains connected before the call is  
automatically disconnected. The default setting is 180  
seconds. A call limit of three minutes may be too short for  
most configurations. Therefore, you may want to increase  
this default value.  
23. You can set billing options for inbound and/or outbound  
calls by checking them in the Billing Options group and  
then entering the charge in cents per number of seconds.  
24. A minimum and maximum set of values can be set for  
Dynamic Jitter Buffer. When receiving voice packets  
from a remote MultiVOIP 400/800, it is possible to  
experience varying delays between packets due to traffic  
conditions on the network. This is called Jitter. To  
compensate for this effect, the MultiVOIP 400/800 uses a  
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Configuring the MultiVOIP  
Dynamic Jitter Buffer. The Jitter Buffer allows the  
MultiVOIP 400/800 to wait for delayed voice packets by  
automatically adjusting the length of the Jitter Buffer  
between allowable minimum and maximum values. An  
Optimization Factor adjustment controls how quickly the  
length of the Jitter Buffer is increased when jitter increases  
on the network. The length of the jitter buffer directly  
effects the voice delay between MultiVOIP 400/800  
gateways.  
The Minimum Jitter Value default setting is 150  
milliseconds, the Maximum Jitter Value default setting is  
300 milliseconds, and the Optimization Factor default  
setting is 7.  
Note: After configuring a given channel, you can copy that  
channel configuration to the other channel by clicking  
Copy Options. Everything on the Billing/Misc tab will be  
copied to the other channel.  
If your country/region is not the default USA, click the  
Regional tab and proceed to step 25. Otherwise, proceed  
to step 26 to begin building your phone directory database.  
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MultiVOIP Quick Start Guide  
25. To change the Tone Pairs on the Regional tab, select your  
country or region from the Country/Region list.  
Note: If your country or region is not listed, click Custom  
to define it.  
The Tone Pairs group enables you to select and modify  
the parameters. Click OK when finished. Proceed to step  
26 to begin building your phone directory database.  
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Configuring the MultiVOIP  
26. The Phone Directory Database dialog box displays with  
the Proprietary PhoneBook option selected and no  
phone numbers entries displayed in the database. This  
dialog box enables you to select either the GateKeeper or  
Proprietary PhoneBook. Once you have selected the type  
of Phone Book database, you can proceed to Registering  
with a GateKeeper Phone Directory in the following  
section. Or, if you are building a proprietary phone book,  
proceed to the Building a Proprietary Phonebook Directory  
section later in this manual.  
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MultiVOIP Quick Start Guide  
Registering with a Gatekeeper Phone Directory  
This section describes how to register H.323 endpoints  
with the Gatekeeper. The H.323 Gatekeeper function  
resides at a PC acting as the central point for all calls  
within its zone and providing call control services to  
registered endpoints. The Gatekeeper performs two  
important call control functions: address translation from  
LAN aliases to IP addresses, and bandwidth management  
where the network manager has specified a threshold for  
the number of simultaneous conferences on the LAN.  
In a GateKeeper environment, you will be selecting the  
GateKeeper option, entering an IP address for the  
GateKeeper, and accepting the default port number. If the  
GateKeeper network is servicing Fast Start, accept the  
defaults in the Q.931 Parameters group. If this network  
zone is primarily non-Fast Start supported, you will clear  
the Use Fast Start check box.  
1. Select the GateKeeper option.  
2. The Use Fast Start check box is selected by default. If  
the GateKeeper network employs Fast Start, leave this  
selected. You may have to verify whether Fast Start is  
used with the GateKeeper administrator.  
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Configuring the MultiVOIP  
3. Enter the Gatekeeper IP Address in the IP Address box of  
the RAS Parameters group.  
4. Accept the default Port Number 1719.  
CAUTION: The default setting for the Gatekeeper Port  
Number is 1719. This can be changed to a different value  
by the Gatekeeper administrator. If you decide to change  
the default Port Number, you must use the same number  
on the Gatekeeper and all other H.323 endpoints.  
5. Click Add when you are finished to begin building your  
phone directory database. The Add/Edit Phone Entry  
dialog box displays.  
6. Enter the unique phone number of the local device in the  
Phone Number box. For example, 101.  
7. Leave the Description box blank.  
8. Enter the Voice Channel number that corresponds to the  
phone number entered.  
9. Enter a description in the H.323 ID box with a description  
to identify the phone number. For this example, you could  
enter “New York Office 1”.  
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MultiVOIP Quick Start Guide  
10. Enter the Port IP Address of the MultiVOIP you are  
currently configuring in the IP Address box.  
11. Click OK when you are finished. The Phone Directory  
Database dialog box displays your first entry.  
12. Click Add to enter your next phone listing. The Add/Edit  
Phone Entry dialog box displays.  
13. Enter the second unique phone number of the local device  
in the Phone Number box. For example, 102.  
14. Leave the Description box blank.  
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Configuring the MultiVOIP  
15. Enter the Voice Channel number corresponding to the  
phone number entered.  
16. Enter a description in the H.323 ID box to identify the  
phone number. For this example, you could enter a  
description such as “Jerry’s Desk”.  
17. Enter the Port IP Address of the MultiVOIP you are  
currently configuring in the IP Address box.  
18. Click OK when you are finished. The Phone Directory  
Database dialog box displays with your second entry in  
the window.  
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19. Repeat this process for all channels and then click OK in  
the Phone Directory Database dialog box.  
Note: When entering multiple channels, you can also click  
Copy From in the Add/Edit Phone Entry, enter the  
phone number you want to copy, click OK in the COPY  
FROM dialog box. Change the information as needed,  
and click OK in the Add/Edit Phone Entry dialog box.  
20. The following dialog box displays. Click OK to download  
setup.  
21. Once the setup program receives a response from the  
MultiVOIP 400/800, the Writing Setup dialog box  
displays, indicating that the setup configuration is being  
written to the MultiVOIP 400/800.  
22. After the setup has been written to the MultiVOIP 400/800,  
the unit is rebooted.  
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Configuring the MultiVOIP  
23. Check to ensure that the BTG LED on the MultiVOIP 400/  
800 is Off after the download is complete. This may take  
several minutes as the MultiVOIP 400/800 reboots.  
24. You are returned to the Multi-Tech Installation CD screen  
from which you can load the Acrobat Reader to your PC.  
This allows you to view and/or print the User Guide by  
clicking the Install Manuals icon.  
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MultiVOIP Quick Start Guide  
Building a Proprietary Phonebook Directory  
To build your proprietary MultiVOIP 400/800 Phone  
Directory (in an H.323 environment without the  
GateKeeper option enabled), select the Proprietary  
Phonebook option, then configure the “Master” MultiVOIP  
400/800 and then add the “Slave” MultiVOIP 400/800s (or  
other H.323 endpoints). Configuring the “Slave” MultiVOIP  
400/800 is discussed later.  
The first MultiVOIP 400/800 to be configured is designated  
the “Master” and contains the proprietary phonebook  
database. All subsequent MultiVOIP 400/800s added to  
the proprietary phonebook database are designated  
“Slaves”. The master database contains the phone  
numbers of all H.323 endpoints available for  
communication on an IP network. This database is  
downloaded to each Slave MultiVOIP 400/800 as it comes  
online.  
To configure the “Master” MultiVOIP 400/800, verify that  
the Proprietary Phonebook and Master options are  
enabled. The Master IP Address, Send Status Report to  
Master, and RAS Parameters group will be unavailable.  
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Configuring the MultiVOIP  
Note: The Slave Status button displays the Slave VOIP  
Status dialog box used for viewing phone number, IP  
address, status, and description of slave units. See  
“Configuring Your Slave MultiVOIP 400/800s” for details.  
1. Click Add to begin building your phone directory database.  
The Add/Edit Phone Entry dialog box displays.  
2. Enter the unique phone number of the local device in the  
Phone Number box (for example, 101) and indicate that  
the local device is connected to Channel 1 in the Voice  
Channel box.  
3. The Description box is optional, but can be useful in  
associating the channel to the extension. If you wish, enter  
a description of your local phone number. This description  
serves to identify the phone number you entered in the  
previous step. For example, normally the “Master”  
MultiVOIP 400/800 resides at the entity’s main office. For  
this example you could enter a description such as “New  
York Office 1”.  
4. The Station Identification group includes a Hunt Group  
list. This list enables you to indicate which Hunt Group you  
want the phone number to be associated with. Or, you  
can select NO HUNT if you do not want this entry to  
participate in hunting.  
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MultiVOIP Quick Start Guide  
Note: Hunting is a series of telephone lines organized in  
such a way that if the first line is busy the next line is  
hunted and so on until a free line is found. For this  
example, assign the phone entry to HUNT GROUP #1.  
Once you have assigned this entry to a Hunt Group (or  
NO HUNT), you must enter the IP Address of the Master  
MultiVOIP 400/800 in the IP Address box (for example,  
204.022.122.118).  
Note: The Port box becomes active as you begin to enter  
the IP Address. The entry is the H.323 industry standard  
Port value (1720) used to communicate with other H.323  
endpoints.  
5. Click OK to return to the Phone Directory Database  
dialog box. It now includes phone number (101),  
destination details (204.022.122.118 Channel 1), and  
description (New York Office 1).  
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Configuring the MultiVOIP  
6. To configure Channel 2 on the Master MultiVOIP 400/800,  
click Add and the Add/Edit Phone Entry dialog box  
displays again.  
7. Enter the phone number for the MultiVOIP 400/800 in the  
Station Information group Phone Number box. For  
example, 102.  
8. Enter a description in the Description box for the remote  
MultiVOIP 400/800 phone number for Channel 2. For  
example, “New York Office 2.” Then, enter the voice  
channel number in the Voice Channel box.  
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MultiVOIP Quick Start Guide  
9. In the Station Identification group, select HUNT GROUP  
#1 from the Hunt Group list, enter the New York Office 2’s  
IP Address (204.022.122.118), and accept the H.323  
industry standard Port value (1720) used to communicate  
with other H.323 endpoints.  
10. Click OK and you are returned to the Phone Directory  
Database dialog box which now includes the second  
number and related information in the Phone Number list.  
Note: When entering multiple channels, you can also click  
Copy From in the Add/Edit Phone Entry, enter the  
phone number you want to copy, click OK in the COPY  
FROM dialog box. Change the information as needed,  
and click OK in the Add/Edit Phone Entry dialog box.  
Both voice channels belong to Hunt Group # 1. If a call  
from an H.323 endpoint (a MultiVOIP 400/800 or a stand-  
alone H.323 endpoint) to Phone Number 101 is unable to  
be connected, it will automatically connect to the next  
available phone number in Hunt Group #1, such as Phone  
Number 102.  
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Configuring the MultiVOIP  
11. Add all other phone numbers (slave units and stand-alone  
units) to the Phone Directory database. To add Channel 1  
of the Slave MultiVOIP 400/800, click Add. The Add/Edit  
Phone Entry dialog box displays again.  
12. Enter the phone number for the “Slave” MultiVOIP 400/800  
in the Phone Number box. For example, 201.  
13. Click inside the Description box and enter a description  
for the remote MultiVOIP 400/800 phone number for  
Channel 1. For example, “London Office 1”.  
14. In the Station Identification group, select HUNT GROUP  
#2 from the Hunt Group list, enter the London Office 1’s  
IP Address (202.056.039.100), and accept the H.323  
industry standard Port value (1720) used to communicate  
with other H.323 endpoints.  
15. Click OK and you are returned to the Phone Directory  
Database dialog box which now includes the remote  
phone number and related information in the Phone  
Number list.  
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MultiVOIP Quick Start Guide  
16. To add Channel 2 of the Slave MultiVOIP 400/800, click  
Add. The Add/Edit Phone Entry dialog box displays  
again.  
17. Enter the phone number for the remote (Slave) MultiVOIP  
400/800 in the Station Information group Phone  
Number box. For example, 202.  
18. Enter a description for the remote MultiVOIP 400/800  
phone number for Channel 2 in the Description box. For  
example, “London Office 2”.  
19. In the Station Identification group, select HUNT GROUP  
#2 from the Hunt Group list, enter the London Office 2’s  
IP Address (202.056.039.100), and accept the H.323  
industry standard Port value (1720) used to communicate  
with other H.323 endpoints.  
Note: Depending on your requirements, you may want  
calls that cannot make a connection to London Office 1  
(Hunt Group #2) to roll over to the New York office instead.  
In this case, you would configure that phone entry to be  
listed as a member of HUNT GROUP #1.  
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Configuring the MultiVOIP  
20. Click OK and you are returned to the Phone Directory  
Database dialog box which now includes the remote  
phone number and related information in the Phone  
Number list.  
21. To configure a stand-alone endpoint (for example, a PC  
with NetMeeting software), click Add and the Add/Edit  
Phone Entry dialog box displays again.  
22. Enter the phone number for the stand-alone endpoint in  
the Station Information group Phone Number box. For  
example, 301.  
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23. Click inside the Description box and enter a description  
for the remote MultiVOIP 400/800 phone number. For  
example, “Human Resources Desk”.  
Note: Because the H.323 endpoint is not a MultiVOIP 400/  
800, the Phone Directory database ignores the Voice  
Channel entry. It does not matter what value is entered.  
24. In the Station Identification group, select NO HUNT from  
the Hunt Group list. Enter the Human Resource Desk’s  
IP Address (for example, 202.198.100.04), and accept the  
H.323 industry standard Port value (1720) used to  
communicate with other H.323 endpoints.  
Note: This stand-alone was not configured as part of a  
Hunt Group. However, depending on your requirements,  
you could configure a stand-alone to be part of a Hunt  
Group.  
25. Click OK and you are returned to the Phone Directory  
Database dialog box which now includes the stand-alone  
phone number and related information in the Phone  
Number list.  
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Configuring the MultiVOIP  
26. When you have finished, click OK to download the setup  
configuration to the MultiVOIP 400/800.  
27. The Checking MultiVOIP 400/800 dialog box displays.  
28. Once the setup program receives a response from the  
MultiVOIP 400/800, the Writing Setup dialog box displays  
indicating that the setup configuration is being written to  
the MultiVOIP 400/800.  
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29. After the setup has been written to the MultiVOIP 400/800,  
the unit is rebooted.  
30. Check to ensure that the BTG LED on the MultiVOIP 400/  
800 is Off after the download is complete. This may take  
several minutes as the MultiVOIP 400/800 reboots.  
31. You are returned to the Multi-Tech Installation CD screen  
from which you can load the Acrobat Reader to your PC.  
This allows you to view and/or print the User Guide by  
clicking the Install Manuals icon.  
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Configuring the MultiVOIP  
At this time your master MultiVOIP 400/800 is configured.  
Proceed to the “Configuring Your Slave MultiVOIP 400/  
800s” section.  
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MultiVOIP Quick Start Guide  
Configuring Your Slave MultiVOIP 400/800s  
If the Proprietary Phone Book option is selected in the Phone  
Directory Database dialog box, you will need to configure all  
H.323 endpoints as “Slave” units. For example the MultiVOIP  
400/800 at the company’s London office would need to be  
configured as a “Slave”.  
CAUTION: If you are installing a MultiVOIP 400/800 behind a  
firewall, the firewall must support H.323. Refer to your firewall  
user documentation to enable H.323 support.  
1. Disconnect the PC from the Command port of the Master  
MultiVOIP 400/800 and connect it to the Command port on  
the Slave MultiVOIP 400/800.  
2. Win 3.1 users - from the Program Manager, click the  
MultiVOIP 800 Configuration icon in the MultiVOIP 400/  
800 Program Group. The Main menu displays.  
Win2000/NT/98/95 users - from your desktop, click  
Programs I MultiVOIP 800 I MultiVOIP 800  
Configuration. The Main menu displays.  
3. Click IP to display the IP Setup dialog box.  
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Configuring the MultiVOIP  
Select the Enable Diffserv check box to enable  
differentiated services on routers that support this service.  
This feature provides priority to voice packets so that they  
are not delayed because of large data files being  
downloaded.  
The default Frame Type is TYPE_II. If this does not match  
your IP network, change the Frame Type by clicking on the  
drop-down arrow. The Frame Type choices are TYPE_II  
and SNAP.  
4. In the Port Address group, enter the IP Address for the  
slave unit and the IP Mask. In the Gateway Address  
group, enter the gateway IP address.  
The IP Address is the unique IP address that you assign to  
the MultiVOIP 400/800, and the Gateway Address is the IP  
address of the device (such as a network router)  
connected to the Internet/Intranet.  
Click OK when you are finished. The Main menu displays.  
5. From the Main menu, click Voice Channels to display the  
Channel Setup dialog box. The Channel Setup dialog  
box displays. The four tabs in this dialog box define the  
channel interface, voice/fax parameters, Billing/Misc  
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MultiVOIP Quick Start Guide  
parameters, and regional telephone parameters for each  
channel.  
Configure each channel for the type of interface you are  
using. Channel 1 displays by default on the Interface tab.  
To change the channel number, select the channel you  
want to configure from the Select Channel list.  
Feature options are enabled or unavailable according to  
the interface type that you select. The Inter Digit Time  
check box is available for all interface types. This option  
defines the maximum amount of time that the unit will wait  
before mapping the dialed digits to an entry in the Phone  
Directory Database. If too much time elapses between  
digits, and the wrong numbers are mapped, you will hear a  
rapid busy signal. If this happens, it will be necessary to  
hang up and dial again. The default is 2 seconds.  
6. The Interface group defaults to FXS (Loop Start). Select  
the interface option that corresponds to the interface type  
being connected to the Voice/Fax Channel 1 jack on the  
back panel of the MultiVOIP 400/800.  
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Configuring the MultiVOIP  
FXS (Loop Start): If a station device such as an analog  
telephone, fax machine, or KTS (Key Telephone System)  
is connected to the Voice/Fax connector on the back of the  
unit, FXS (Loop Start) will likely be the correct Interface  
option.  
FXS (Ground Start): If the station device uses ground  
start, then choose the FXS (Ground Start) option. Refer to  
the device’s user documentation.  
For both FXS Loop Start and FXS Ground Start , the Ring  
Count FXS window allows you to set the maximum  
number of rings before hanging up and releasing the line  
to another call. The default setting is 8 counts.  
Note: Zero (0) means no rings - caller hears a busy tone.  
FXO: If you are using an analog extension from your PBX,  
then choose the FXO option. Check with your in-house  
phone personnel to verify the connection type.  
If FXO is selected, the Dialing Options Regeneration,  
Flash Hook Timer, and Ring Count groups are enabled.  
Check with your local in-house phone personnel to verify  
whether your local PBX dial signaling is Pulse or DTMF  
(tone). Then, set the Regeneration option accordingly. The  
Flash Hook Timer allows you to enter the time, in  
milliseconds, for the duration of the flash hook signal  
output on the FXO interface. The default setting is 600  
milliseconds. The Ring Count FXO window allows you to  
set the number of rings received on the FXO interface  
before the MultiVOIP 400/800 answers the incoming call.  
The default setting is 2 counts.  
Note: Zero (0) means that the MultiVOIP 400/800 never  
answers.  
For FXO-to-FXO communications, you can enable a  
specific type of FXO Disconnect: Current Loss, Tone  
Detection, or Silence Detection. Check with your in-  
house phone personnel to verify the preferred type of  
disconnect to use. Enabling Tone Detection activates the  
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Disconnect Tone Sequence options. For Disconnect Tone  
Sequence, you can select from the lists either one or two  
tones that will cause the line to be disconnected; the  
person hanging up a call must then hit the key or keys that  
will produce those tones. For Silence Detection, select  
One Way or Two Way, then set the timer for the number  
of seconds of silence before disconnect. Note that the  
default value of 15 seconds may be shorter than desired  
for your application.  
E&M: If you are connecting to an analog E&M trunk on  
your PBX, then choose the E&M interface option to enable  
the E&M Options group. Check with your in-house phone  
personnel to determine if the signaling is Dial Tone or  
Wink and if the connection is 2-wire or 4-wire. If Wink  
signaling is used, then the Wink Timer is enabled with a  
default of 250 milliseconds. The range of the Wink Timer  
is from 100 to 350 milliseconds. Consult with your in-  
house phone personnel for this timer setting.  
Note: After configuring a given channel, you can copy that  
channel’s configuration by clicking Copy Options.  
Everything on the Interface tab will be copied to the other  
channel.  
7. Repeat the above step to configure the interface type for  
voice/fax channel 2.  
8. The Voice/Fax tab displays the parameters for the voice  
gain, DTMF (Dual Tone Multi-Frequency) gain, voice  
coder, faxing, and advanced features such as Silence  
Compression, Echo Cancellation, and Forward Error  
Correction.  
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Configuring the MultiVOIP  
9. You can set up the input and output voice gain so that the  
volume can be increased or decreased. Input gain  
modifies the level of the audio coming in to the voice  
channel before it is sent over the Internet to the remote  
MultiVOIP 400/800. Output gain modifies the level of the  
audio being output to the device attached to the voice  
channel. Make your selections from the Input and Output  
lists in the Voice Gain group. The valid range is +31dB to  
–31dB with a recommended default value of 0.  
The DTMF Gain group controls the volume level of the  
digital tones sent out for touchtone dialing. The selections  
from the Gain High and Gain Low lists control the gain in  
decibels of the high and low tones in the tone pairs. The  
default gain values are -4 dB and -7 dB respectively. The  
DTMF gain should be changed only with the assistance of  
Multi-Tech Technical Support.  
When the DTMF Out of Band check box is selected, the  
MultiVOIP reproduces DTMF tones rather than passing  
them from input to output.  
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10. To change the voice coder, the channel from the Select  
Channel list, then click Manual in the Coder group. To  
select the appropriate coder, select your new voice coder  
entry from the Selected Coder list.  
If you changed the voice coder, ensure that the same  
voice coder is used on the voice/fax channel you are  
calling; otherwise, you will always get a busy signal.  
Note: If you allow the Coder to be selected automatically,  
enter the Max Bandwidth. Check with your network  
administrator to determine how much bandwidth is  
available.  
11. The Fax group enables you to send/receive faxes on the  
selected voice/fax channel. You can set the maximum  
baud rate for faxes and the fax volume in the two drop-  
down lists and change the jitter value in milliseconds.  
When receiving fax packets from a remote MultiVOIP 400/  
800, it is possible for individual packets to be delayed or  
received out of order due to traffic conditions on the  
network. To compensate for this effect, the MultiVOIP 400/  
800 uses a Jitter Buffer. The Jitter Value allows the  
MultiVOIP 400/800 to wait a user-definable period of time,  
in milliseconds, for delayed or out-of-order fax packets.  
The range of allowable Jitter Values is 0 to 400  
milliseconds with a default of 400 milliseconds.  
If you do not plan to send or receive faxes on a given  
voice/fax channel, you can disable faxes in the Fax group.  
12. You can enable the voice/fax advanced features by  
selecting the Silence Compression, Echo Cancellation,  
or Forward Error Correction check boxes.  
The Silence Compression check box defines whether  
silence compression is enabled for this voice channel. If  
silence compression is enabled, the MultiVOIP 400/800  
will not transmit voice packets when silence is detected,  
thereby reducing the amount of network bandwidth that is  
being used by the voice channel.  
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Configuring the MultiVOIP  
The Echo Cancellation check box defines whether echo  
cancellation is enabled for this voice channel. If echo  
cancellation is enabled, the MultiVOIP 400/800 will remove  
echo-delay which improves the quality of sound.  
The Forward Error Correction (FEC) check box defines  
whether forward error correction is enabled for this voice  
channel. The FEC feature allows some of the voice  
packets that were corrupted (or lost) to be recovered. FEC  
adds an additional 50% overhead to the total network  
bandwidth consumed by the voice channel.  
Note: After configuring a given channel, you can copy that  
channel’s configuration by clicking Copy Options.  
Everything on the Voice/Fax tab will be copied to the other  
channel.  
The Billing/Misc tab displays the parameters for auto call,  
automatic disconnection, billing options and dynamic jitter  
buffer.  
13. If you want to dedicate a local voice/fax channel to a  
remote voice/fax channel (so you will not have to dial the  
remote channel), click the Auto Call Enable check box in  
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MultiVOIP Quick Start Guide  
the Auto Call group. Then enter the phone number of the  
remote MultiVOIP 400/800 in the Phone Number box.  
14. The Automatic Disconnection group provides three  
options to be used singly or in combination.  
The Jitter Value defines the average inter-arrival packet  
deviation (in milliseconds) before the call is automatically  
disconnected. Jitter is the inter-arrival packet deviation  
(phase shift of digital pulses) over the transmission  
medium that causes voice breakup which can be  
particularly disruptive to voice communications. The  
default setting is 20 milliseconds. A higher value means  
that the voice transmission will be more accepting of jitter.  
A lower value will be less tolerant of jitter.  
Consecutive Packets Lost defines the number of  
consecutive packets that are lost after which the call is  
automatically disconnected. The default setting is 30  
packets.  
Call Duration defines the maximum length of time (in  
seconds) that a call remains connected before the call is  
automatically disconnected. The default setting is 180  
seconds. A call limit of three minutes may be too short for  
most configurations. Therefore, you may want to increase  
this default value.  
15. You can set billing options for inbound and outbound calls  
by selecting them in the Billing Options group and then  
entering the charge in cents per number of seconds.  
16. A minimum and maximum set of values can be set for  
Dynamic Jitter Buffer. When receiving voice packets  
from a remote MultiVOIP 400/800, it is possible to  
experience varying delays between packets due to traffic  
conditions on the network. This is called Jitter. To  
compensate for this effect, the MultiVOIP 400/800 uses a  
Dynamic Jitter Buffer. The Jitter Buffer allows the  
MultiVOIP 400/800 to wait for delayed voice packets by  
automatically adjusting the length of the Jitter Buffer  
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Configuring the MultiVOIP  
between allowable minimum and maximum values. An  
Optimization Factor adjustment controls how quickly the  
length of the Jitter Buffer is increased when jitter increases  
on the network. The length of the jitter buffer directly  
effects the voice delay between MultiVOIP 400/800  
gateways.  
The Minimum Jitter Value default setting is 150  
milliseconds, the Maximum Jitter Value default setting is  
300 milliseconds, and the Optimization Factor default  
setting is 7.  
Note: After configuring a given channel, you can copy that  
channel’s configuration to the other channel by clicking  
Copy Options. Everything on the Billing/Misc tab will be  
copied to the other channel.  
If your country/region is not the default USA, click the  
Regional tab and proceed to step 17. Otherwise, proceed  
to step 18 to begin building your phone directory database.  
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MultiVOIP Quick Start Guide  
17. To change the Tone Pairs on the Regional tab, select your  
specific country or region from the Country/Region list.  
Note: If your country or region is not listed, click Custom  
to define it.  
The Tone Pairs group enables you to select/modify the  
parameters according to choice. Click OK when finished  
and proceed to step 6 to begin building your phone  
directory database.  
18. From the Main menu, click Phone Book to display the  
Phone Directory Database dialog box. Make certain the  
Proprietary Phonebook option is selected. In the  
Database Type group, select the Slave option. The  
Master IP Address box becomes active.  
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Configuring the MultiVOIP  
Note: After you have enabled the Slave option, the Slave  
Status button is replaced by the Update button. Once  
your Phone Directory database has been established, you  
can click Update to refresh the entries in the Phone  
Directory Database window.  
19. Enter the IP address (204.022.122.118) of the Master  
MultiVOIP 400/800 in the Master IP Address box and  
select the Send Status Report to Master check box.  
This established the New York office MultiVOIP 400/800  
as the Master.  
Note: In a Dial-On-Demand (DOD) network, you should  
leave the Send Status Report to Master check box  
cleared. This allows the router to disconnect whenever  
there is no voice activity. Note that Slaves with the Send  
Status Report to Master check box cleared will show up  
as “Unknown” when viewing Slave status on the Master.  
20. Click OK to return to the Main menu.  
21. Click Download Setup to write the new configuration to  
the slave unit. The Save Setup dialog box displays.  
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MultiVOIP Quick Start Guide  
22. Select the Save Current Setup as User Default  
Configuration and click OK. The Writing Setup dialog box  
displays as the setup configuration is written to the  
MultiVOIP 400/800.  
After the setup is written to the MultiVOIP 400/800, it  
reboots.  
23. Check that the BTG LED on the MultiVOIP 400/800 is off  
after the download is complete. This may take several  
minutes as the MultiVOIP 400/800 reboots.  
24. You are returned to the Main menu.  
Your MultiVOIP 400/800 is operational at this time.  
Repeat the process for each of the slave units. When all  
slaves have been configured, go to the “Deploying the  
Network” section.  
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Deploying the VOIP Network  
Deploying the VOIP Network  
For a proprietary phone directory database, the VOIP  
administrator can deploy the pre-configured slave MultiVOIP  
400/800s to their remote sites. The remote site administrators  
need only connect power to the pre-configured MultiVOIP 400/  
800, connect the MultiVOIP 400/800 to their Ethernet LAN and  
predefined telephone equipment, and then wait for the phone  
directory database to be downloaded.  
With the Gatekeeper option enabled on the Phone Directory  
Database dialog box, all MultiVOIP 400/800s are configured  
as “Master” and cannot be downloaded. In this case, each  
MultiVOIP 400/800 Phone Book will be programmed with  
phone numbers for its own channels. These phone numbers  
are remotely registered with the H.323 Gatekeeper. See the  
“Registering with a Gatekeeper Phone Directory” section for  
more information.  
Remote Site Administrator  
The following steps are for MultiVOIP 400/800 H.323  
endpoints. For non-MultiVOIP 400/800 H.323 endpoints, refer  
to the appropriate installation documentation.  
1. Unpack your MultiVOIP 400/800.  
2. Connect one end of the power supply to a live AC outlet  
and connect the other end to the Power connection on  
your MultiVOIP 400/800 (See Figure 5).  
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MultiVOIP Quick Start Guide  
Voice/Fax Channel  
Connections  
10BASET  
E&M FXO FXS  
ETHERNET  
POWER  
E&M  
FXS  
FXO  
Power Connection  
PSTN  
Ethernet Connection  
Figure 5. Remote Site Cable Connection  
3. Connect a network cable to the ETHERNET 10BASET  
(RJ-45) connector on the back of your MultiVOIP 400/800.  
4. If you are connecting a station device (analog telephone,  
fax machine, or Key Telephone System (KTS) to your  
MultiVOIP 400/800, connect the smaller end of a special  
adapter cable (supplied) to the Voice/Fax Channel 1 FXS  
connector on the back of the MultiVOIP 400/800 and the  
other end to the station device.  
If you are connecting a PBX extension to your MultiVOIP  
400/800, connect the smaller end of a special adapter  
cable (supplied) to the Voice/Fax Channel 1 FXO  
connector on the back of the MultiVOIP 400/800 and the  
other end to the PBX extension.  
If you are connecting an E&M trunk from a telephone  
switch to your MultiVOIP 400/800, connect one end of an  
RJ-45 phone cord to the Voice/Fax Channel 1 E&M  
connector on the back of the unit and the other end to the  
trunk phone jack.  
If you are connecting to an E&M trunk, you need to ensure  
that the E&M trunk jumper is in the correct position for the  
E&M type trunk. The default E&M jumper position is E&M  
type 2. To change the E&M jumper position, perform the  
E&M jumper block positioning procedure.  
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Deploying the VOIP Network  
5. Repeat the above step to connect the remaining telephone  
equipment to each Voice/Fax Channel on your MultiVOIP.  
6. Turn on power to the MultiVOIP 400/800 by placing the  
ON/OFF switch on the back panel to the ON position. Wait  
for the BTG LED on the MultiVOIP 400/800 to go off  
before proceeding. This may take a couple of minutes.  
7. At this time your VOIP network should be fully operational.  
Dial one of the sites in your network using the dialing  
directory supplied by your network Administrator.  
If your H.323 endpoint is not a MultiVOIP 400/800 (for  
example, a PC with Netmeeting software), the Systems  
Administrator for your VOIP network should do the following:  
1. Make certain that the H.323 endpoint (for example, a PC  
with Netmeeting, or router with voice) have been properly  
connected to the network. Refer to the appropriate end  
user documentation.  
2. Acquire the relevant IP Addresses and/or H323 IDs (H323  
IDs are required if Gatekeeper is enabled) from the other  
H.323 endpoints that will participate in H.323 calls.  
3. Enter the IP Addresses and MultiTech H323 IDs (H323 IDs  
are required if Gatekeeper is enabled) in your phonebook  
directory. You do not have to enter non-MultiTech H.323  
IDs in the phonebook directory if a gatekeeper is enabled.  
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MultiVOIP Quick Start Guide  
Limited Warranty  
Multi-Tech Systems, Inc. (“MTS”) warrants that its products will  
be free from defects in material or workmanship for a period of  
two years from the date of purchase, or if proof of purchase is  
not provided, two years from date of shipment. MTS MAKES  
NO OTHER WARRANTY, EXPRESSED OR IMPLIED, AND  
ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND  
FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY  
DISCLAIMED. This warranty does not apply to any products  
which have been damaged by lightning storms, water, or  
power surges or which have been neglected, altered, abused,  
used for a purpose other than the one for which they were  
manufactured, repaired by the customer or any party without  
MTS’s written authorization, or used in any manner  
inconsistent with MTS’s instructions.  
MTS’s entire obligation under this warranty shall be limited (at  
MTS’s option) to repair or replacement of any products which  
prove to be defective within the warranty period, or, at MTS’s  
option, issuance of a refund of the purchase price. Defective  
products must be returned by Customer to MTS’s factory  
transportation prepaid.  
MTS WILL NOT BE LIABLE FOR CONSEQUENTIAL  
DAMAGES AND UNDER NO CIRCUMSTANCES WILL ITS  
LIABILITY EXCEED THE PURCHASE PRICE FOR  
DEFECTIVE PRODUCTS.  
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Warranty and Regulatory Information  
Technical Support  
Multi-Tech Systems has an excellent staff of technical support  
personnel available to help you get the most out of your Multi-  
Tech product. If you have any questions about the operation of  
this unit, or experience difficulty during installation you can  
contact Tech Support via the following:  
Phone:  
(800) 972-2439 (USA and Canada)  
(763) 785-3500 (international and local)  
Internet:  
Please have your product information available, including  
model and serial number.  
FCC Declaration  
NOTE: This equipment has been tested and found to comply  
with the limits for a Class A digital device, pursuant to Part 15  
of the FCC Rules. These limits are designed to provide  
reasonable protection against harmful interference when the  
equipment is operated in a commercial environment. This  
energy, and if not installed and used in accordance with the  
instructions, may cause harmful interference to radio  
communications. Operation of this equipment in a residential  
area is likely to cause harmful interference in which case the  
user will be required to correct the interference at his own  
expense.  
Warning: Changes or modifications to this unit not expressly  
approved by the party responsible for compliance could void  
the user’s authority to operate the equipment.  
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