Nortel Networks Telephone NT8B45AAAB User Manual

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Part No. P0942257 04  
T7406 Cordless Telephone  
Installation Guide  
Read all documentation before proceeding with installation of this  
unit.  
Warning: First-time battery charge  
Follow this procedure for the first-time charge of your handset battery packs  
and when you first set up your T7406 system. Failure to follow all of these  
steps can result in operational difficulties.  
Ensure that the battery pack is fully charged before you attempt to use your  
T7406 handset for the first time.  
Charge the battery pack in the rear port of the charger for a  
minimum of 30 minutes.  
Install the battery pack in the handset.  
Put the handset into the front port of the charger and charge the  
battery pack in the handset for a minimum of three hours.  
Trickle charge a spare battery pack in the rear battery port of the  
charger for 12 hours.  
Ensure you configure the handsets in an orderly fashion. If you are  
configuring a number of handsets, ensure the battery packs for all the  
handsets are charged before you start configuring the handsets to the base  
station.  
Refer to Handset Configuration on page 27.  
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Contents  
Base Station Features . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21  
Mounting Bracket . . . . . . . . . . . . . . . . . . . . . . . 22  
T7406 Pre-installation Programming . . . . . . . . . . . . . . 22  
Before you start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23  
Mounting and Connecting the Base Station . . . 23  
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4 / Contents  
System Feature codes . . . . . . . . . . . . . . . . . . . .40  
Handset Asleep (Save Battery Mode) . . . . . . . . . . . . . .41  
Handset Asleep Mode Feature Conditions . .41  
Make and Answer Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Make a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
Answer calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42  
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Headset Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . 48  
For Class A Host equipment . . . . . . . . . . . . . 51  
For Class B Host equipment . . . . . . . . . . . . . 52  
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52  
Important Safety Instructions . . . . . . . . . . . . . . . . . . . . 52  
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53  
Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53  
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6 / Contents  
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Provisioning the T7406 / 7  
Provisioning the T7406  
This chapter provides specification and provisioning information for  
the T7406 cordless system.  
The T7406 is a Frequency Hopping Spread Spectrum (FHSS) cordless  
telephone. The benefits of this technology are: improved range,  
robustness and, less susceptibility to interference, fading and multipath.  
The use of a common wall-mounted base station for multiple handsets  
allows you to position the base antennas for maximum performance and  
coverage. The indoor range of the T7406 is 95 meters (300 feet) in a  
typical office environment. This range may vary with differing  
environments.  
Operational Bandwidths  
The T7406 cordless telephone operates in the ISM (Industrial,  
Scientific, and Medical) 902-928 MHz band. The T7406 divides the  
ISM band into two sets of operating frequencies to allow the  
coexistence of other ISM devices. Examples of these products are SKU  
scanners and remote controls for products such as garage door openers  
and home theatre systems. Note that, since the T7406 is a frequency  
hopper, it uses at least half of the available frequencies in the ISM band  
for operation and can make it difficult for other 900 MHz devices to  
operate correctly. The following table identifies the frequencies used  
for the upper and lower bands of operation:  
• Lower: 902 - 915 MHz  
• Upper: 915.1 - 928 MHz  
These bands are selectable for each base station through dip switches  
located on the back of the T7406 base station. Each base station  
supports up to three handsets. Selection of the correct band for  
operation may minimize interference between devices.  
Operational Parameters  
For example, with a configuration of six handsets, two base stations are  
required (three handsets per base station). One base station will be set to  
the upper band, and the other base station will be set to the lower band.  
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8 / Provisioning the T7406  
Another example is an environment that already contains another 900  
Mhz device (e.g. a scanner with 900 Mhz wireless connection to a  
LAN). In this environment, only one T7406 base station should be  
installed. Set the T7406 base station dip switch to the opposite band  
that the scanner is operating in.  
Installation Site Parameters  
Physical characteristics of the site where the T7406 is to be installed, or  
has been installed, must be evaluated to maximize the performance of  
the T7406 telephone. Outlined below are some of the most common  
characteristics to be considered:  
• wood vs. metal construction  
• metal vs. wood studs in wall construction  
• thickness of concrete floors and walls (and type of covering, e.g.  
Metallic wall paper)  
• number of floors and walls  
• open office (cubicles) vs. closed office (floor to ceiling)  
• steel partitions, elevator shafts, electric utility rooms  
• RF LANs (Radio Frequency Local Area Networks), extensive  
machinery, computer equipment, and other cordless phones or  
wireless devices  
Placement of the antenna is crucial for enhancing the performance of  
the T7406. Pick a central location and mount the antenna with the  
following guidelines:  
• Attach the base station at least eight feet from the floor.  
• Minimize the number of walls between the base station and handsets.  
• Centralize the location of the base station to make the number of  
interfering walls equal in all directions.  
• Do not mount the base station on an outside wall.  
• Do not mount or place the base station outdoors.  
• Adjust the antenna for optimal transmission by moving it through 90-  
degree angle planes (i.e. perpendicular to the wall, parallel to the  
wall, perpendicular to the floor, parallel to the floor)  
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Provisioning the T7406 / 9  
RF LANs (Radio Frequency Local Area Networks)  
RF LANs are primarily installed in large chain businesses such as retail  
and grocery where the RF LAN is used for inventory equipment.  
With the correct selection of the T7406 operating band, the RF LAN  
operating at 900 MHz does not pose an operating issue for T7406 nor  
does the T7406 pose issues for the RF LAN with respect to data  
transmission capabilities. However, there may be instances where the  
T7406 user may hear an occasional slight audio click when operating in  
a RF LAN environment. This should not inhibit the user's ability to  
hold a normal two-way conversation using the T7406.  
Telephone-to-Base Range  
The T7406 cordless telephone utilizes an extremely efficient radio  
design to deliver the maximum possible range while complying with  
the governing rules of the Federal Communications Commission (FCC)  
and Industry Canada. The effective operating range within a site will  
largely depend on the environmental characteristics mentioned  
previously, such as building construction and internal layout of the site.  
Typically, the T7406 will provide an effective operating range of 95  
meters (300 feet).  
If the T7406 is not meeting this operating range, the following are some  
steps that can be taken to assist with the troubleshooting:  
• Check surroundings for any other product that my be causing  
interference.  
• Check environment for obstructions that may be limiting the range.  
• Change the orientation of the base station antenna.  
• Move the base station to another location.  
• Select the alternate operating band of the T7406.  
It is important to keep in mind that, based on environmental  
characteristics, the T7406 may not be the optimum solution for all  
users. If the desired level of mobility performance is not met, contact  
your authorized Nortel Networks distributor to discuss alternatives.  
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10 / Provisioning the T7406  
Environmental Layout Considerations  
The following facility layouts are examples of reference building  
footprints for which the T7406 is most suited.  
1. The Storefront  
• under 929 square meters/10,0000 square feet  
• Open environments with few interior barriers  
30.5 m/100 ft.  
46 m/150 ft.  
Diagonal  
measurement  
is  
Diagonal  
measurement  
is  
46 m/  
150 ft.  
30.5 m/  
100 ft.  
55 m/180 ft.  
44 m/ 144 ft.  
2. Office Facility  
The T7406 can also be used in business with larger square footage and  
including an interior layout that has a higher concentration of physical  
barriers. Full radio coverage at these facilities takes more planning to  
work around possible barriers.  
• Professional office  
46 m/150 ft.  
• Typically under 2,323  
square meters/25,000  
square feet.  
• Usually mix of open  
and closed offices  
46 m/  
150 ft.  
• Typical office floor  
A
B
C
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with elevator shaft and  
utility rooms in core of  
facility.  
Some transmission path  
loss will occur when the  
base station and the  
handset are separated by physical barriers, as represented by this  
core area.  
The amount of path loss is dependent upon the number of walls  
and type of material and density of barriers utilized in the core  
area.  
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Provisioning the T7406 / 11  
3. Combination Office/Warehouse  
• Various Small Businesses  
30.5 m/  
100 ft.  
• Typically under 1,394  
square meters/15,000 square  
feet  
• Mixture of closed offices  
and open spaces  
Typical facility with both  
office and warehousing  
combined in one operation.  
Some transmission path loss  
in expected with the pres-  
ence of dense firewall and  
racking/shelves filled with  
dense materials. Consider  
placing base station in larg-  
est room.  
61 m/  
200 ft.  
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B
C
D
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Range will be limited in this  
situation.  
#
4. Office with adjacent yard area(s)  
• Various small businesses  
• Typical office facility 465  
to 929 square meters.  
(5,000 to 10,000 sq. ft.)  
• Adjacent open space or  
yard next to office  
95 m/  
300 ft.  
•Radio transmission will be  
relatively unimpaired in  
more open environments as  
path loses due to barriers  
such as walls and objects  
are minimized.  
A
B
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#
This environment may allow for ranges in excess of 95 m  
(300 ft.).  
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12 / Provisioning the T7406  
Environments Unsuitable for the T7406  
Campus Environment (multiple buildings on one site)  
The campus environment is not a suitable application for the T7406.  
For this type of environment, contact your authorized Nortel Networks  
distributor to discuss alternatives.  
95 m/  
300 ft.  
Bldg. B  
Bldg. A  
107 m/  
Bldg. D  
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#
350 ft.  
Bldg. C  
Bldg. E  
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Provisioning the T7406 / 13  
Powering the T7406  
The T7406 design has taken into account the need to provide a reliably-  
powered cordless business telephone. The T7406 utilizes premium  
1400 mAh NiMh batteries.  
A fully charged 1400 mAh battery should provide four to five hours of  
talk time in a typical eight-hour day over, approximately, a three-year  
service life.  
The T7406 has been engineered to provide the following talk-time  
parameters:  
• T7406 users should feel comfortable using the handset for an entire  
workday without the need to put the handset back into the charger  
cradle for charging or topping up.  
• Studies have shown that users have been able to get four to five hours  
of talk time from a fully charged 1400 mAh battery.  
• Traffic studies have shown that typical users do not usually need  
more that three hours of talk time in an eight-hour day.  
• If talk times exceed four hours or the product is to see use through  
multiple, consecutive shifts, multiple spare batteries are strongly  
recommended.  
Battery Charge Controller  
The T7406 incorporates a special handset battery charge controller that  
employs a four-stage charging program that sequences charging from a  
soft start to a fast charge, and then to a topping charge, followed by a  
maintenance charge.  
This four-stage charge sequence presents an optimum-charging plan  
that helps maximize the overall life of the battery by managing two  
critical elements in the battery charging process, the charge rate and  
overcharging protection. Note that NiMh batteries do not exhibit  
memory problems and it is not necessary to drain the batteries prior to  
recharging.  
Low battery status is indicated on the handset by the visual charge  
status on the display and/or the audible warning tone.  
The T7406 handset can be placed back into the charge cradle for  
charging when it is not in use.  
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14 / Provisioning the T7406  
• A fully depleted 1400 mAh battery will be restored to full charge in  
three hours.  
• The handset charge light will turn from red to green to indicate that  
the handset battery is fully charged and ready for use.  
• The T7406 charge stand provides a rear port as a trickle charger that  
charges a fully depleted 1400 mAh battery in 12 to 14 hours.  
Specifications  
Frequency band  
Half of the 900 MHz ISM band:  
either 902 to 915 MHz or 915.1 to 928 MHz  
Total channel  
capability  
Spread spectrum frequency hopping is  
available on 27 channels per base  
Handset dimensions Length: 170 mm/6.8 inches (without antenna)  
Width: 58 mm/2.32 inches  
Overall Thickness: 40 mm/1.60 inches  
Handset range  
Typical range of 95 m/300 feet, depending on  
the physical environment  
Handset weight  
Battery Pack  
280 g/9.38 oz. (with battery pack)  
Capacity: 1400 mAh, 3.6 V  
Talk Mode: up to five hours (with backlight  
OFF)  
Standby Mode: up to 72 hours  
Base dimensions  
Base power  
Length: 150 mm/6 inches  
Width: 160 mm/6.4 inches  
Height (front): 28 mm/1.12 inches  
Height (rear): 34 mm/1.36 inches  
Input: 110 VAC, 60 Hz  
Output: 9 VDC, 600 mA  
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Important battery pack information / 15  
Important battery pack information  
Before you use the T7406 cordless handset, read the following  
information.  
This unit contains a rechargeable nickel metal hydride battery:  
• Follow the proper installation and charging procedures for the  
T7406 battery pack. Refer to Charging the T7406 Battery Pack on  
page 24.  
• The rechargeable battery pack must be fully charged before you use  
the T7406 handset for the first time.  
• It takes approximately three hours to charge a standard 1400 mAh  
battery pack.  
• It takes approximately 12 hours to trickle charge the spare battery in  
the charging cradle.  
Warning:  
The battery will explode if disposed of in a fire.  
Do not use the nickel metal hydride batteries provided  
with your T7406 cordless telephone with any other  
product. These batteries were designed specifically for  
use with theT7406 telephone and the T7406 charger  
ONLY. Improper use of the T7406 batteries may result in  
fire hazard.  
Do not do anything that would cause the battery to short  
circuit.  
Do not charge the battery with any charger other than the  
one supplied with this equipment.  
WARNING  
Nickel metal hydride batteries must be disposed of  
properly.  
Do not dispose of the batteries in office or household  
waste.  
Nickel metal hydride batteries are recyclable. You can help preserve the  
environment by returning your unwanted batteries to your nearest  
recycling center for recycling or proper disposal.  
Phone 1-800-8-BATTERY to locate a Battery Recycling Center near  
you.  
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16 / About your T7406 telephone  
About your T7406 telephone  
The T7406 is a multiple-handset, single-base cordless telephone  
system. The T7406 telephone provides a fully-integrated mobility  
solution for your business. The T7406 handset allows you to freely  
move around your work space while on a call, and still maintain access  
to all your telephone system features.  
The T7406 telephone uses advanced digital frequency hopping spread  
spectrum (FHSS) technology to provide a quality audio path over a 900  
MHz radio link. Establishing a call over a radio link is comparable to a  
wire line communication.  
Note: The T7406 cordless telephone is supported on all Norstar systems  
(DR3 or higher) and on all Business Communications Manager  
systems.  
Radio range and coverage considerations  
The effective operating radio range in your facility depends on the  
building construction and the internal layout of the facility. Typically, a  
dense office or warehouse environment has an effective operating radio  
range of 95 meters (300 feet). An open office environment enhances  
operating radio ranges. Refer to Provisioning the T7406 on page 7.  
Security of Conversation  
Each base station has a unique Security Code (S.S. Code). All three  
handsets registered to the base station must share the same Security  
Code. Each of the three handsets assigned to a base station must also  
have a unique identification (Set I.D. 1, 2 or 3).  
Density and Interference  
For this system to be interference-free, install a maximum of two base  
stations and six handsets per location. Each base station provides three  
independent time compression multiplexing (TCM) line connections to  
the telephone system.  
Each base station uses half of the Industrial Scientific Medical (ISM)  
band for its frequency hopping channels. The dip switches on the base  
station allow you to assign the base station to use either the lower half  
(902-915 Mhz) or the upper half (915.1-928 Mhz).  
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About your T7406 telephone / 17  
Each base station must use a separate ISM half band. For more  
information about setting the dip switches, refer to Installing the Base  
Station on page 21.  
If other devices operating on the ISM band interfere with the T7406  
base, the other half of the band may be used to try to minimize  
interference. In this situation, install only one base station and three  
handsets per location.  
Spare Parts  
You can order spare parts for your T7406 telephone. For more  
information about spare parts, refer to T7406 Parts Lists on page 17.  
For more information about accessories, refer to Optional accessories  
on page 48. For more information about ordering, contact your system  
administrator.  
T7406 Parts Lists  
Along with this guide, the following items are included with the T7406  
telephone.  
System parts list  
Mounting bracket  
Base station and Mounting Bracket  
Power  
Telephone cord  
(3)  
adapter  
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18 / Handset Overview  
Handset parts list  
®
A
BC  
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7
PQ  
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V
WX  
Y
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#
Handset  
Charger  
Battery pack Power  
(2)  
adapter  
Handset card (2) and Plastic lens (1)  
Belt clip  
Wrist strap  
Handset Overview  
The handset automatically links with the base station by searching for  
the base station signal when the following are completed:  
• battery is charged  
• base station and handset are powered  
• handset identification is configured  
• base station Security Code is assigned  
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Handset Overview / 19  
Handset Signal Detection  
You can monitor the handset signal strength while moving to different  
locations. The antenna/signal strength and battery icons appear on the  
handset display.  
When you move too far from the base station, the following occurs on  
the handset:  
• the antenna/signal strength icon disappears  
Out of range... message appears  
• handset produces an intermittent beep  
• handset may go into scanning mode  
If the signal strength is weak, move back into range to stop the handset  
display messages and warning tones.  
If you go completely out of range during an active call, the call is  
automatically placed on hold. For more information, refer to Hold calls  
on page 43. Retrieve a held call by selecting the flashing red line button  
when you are back in range.  
Note: In cases where the line button does not light when you move back  
into range of the base station, press the intercom/line button that  
the call came in on, to take the call off hold.  
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20 / Handset Overview  
Handset Features  
Antenna  
Light collar  
Flashes during ringing  
calls.  
Display  
Shows the time, date, call  
information, handset status  
icons and guides you while  
using features.  
Memory and line  
buttons  
Buttons for one touch  
dialing, feature  
operations, line  
access or answering  
a line.  
Display buttons  
Starts or cancels a feature.  
Cancels active calls.  
Places calls on hold.  
®
ABC  
JKL  
TUV  
DEF  
1
2
5
8
0
3
GHI  
MNO  
4
6
Headset port  
PQRS  
WXYZ  
7
9
#
Lanyard anchor  
(hook)  
For attaching a  
wrist strap.  
Microphone  
Options  
Volume control  
Dialpad  
button/Mute  
Answers  
calls, Mute the  
microphone  
on an active  
call and  
Battery Pack  
accesses the  
Options List.  
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Installing the Base Station / 21  
Installing the Base Station  
This section describes the base station and:  
• how to mount the base station on a wall  
• what programming is required before you connect the base station to  
your system  
• how to connect the base station to your system  
The T7406 cordless telephone operates on the same principle as a two-  
way radio. Therefore, the location of the base station affects the range  
of reception. The base station should not be installed where radio waves  
are blocked or reflected, such as next to a filing cabinet.  
For optimal performance, install the base station at least 2.4 meters  
(eight feet) above the floor. Always position the antenna at a 90° angle  
to the base station.  
Base Station Features  
This section illustrates the base station for the T7406 system.  
Antenna  
Base  
antenna  
(90° to base  
station)  
LED indicates base  
station has power  
Note: When power is connected to the base station, the LED on the  
front of the unit starts flashing. During operation the LED flashes  
every second to indicate that the unit is receiving power.  
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22 / Installing the Base Station  
Mounting Bracket  
Notches match to bracket.  
Mounting  
bracket  
T7406 Pre-installation Programming  
Before connecting the T7406 base station to your system, you must set  
up system programming for the handset lines.  
Have the system administrator set up this programming:  
1. Program Handsfree to Auto.  
2. Program a maximum of three lines to each handset.  
3. Assign Ring & Appear on the lines you assign to the handset.  
Note: Appear only does not allow the handset to wake from  
Handset Asleep mode.  
4. Set the Page zone to None.  
Note: Handsets can send Page announcements, but they cannot  
receive them.  
5. Set DND on Busy to Yes if you do not want your calls  
interrupted with a ring tone when a second call comes in. Instead,  
the button flashes, indicating an incoming call.  
6. Other telephone programming is the same as for the M7310  
telephone, with the exception of the memory key locations.  
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Installing the Base Station / 23  
Before you start  
• Ensure there is an AC power outlet within 1.5 meters (5 feet) of the  
base station location.  
• Ensure that the telephone lines from your system have been installed  
to the base station location.  
Mounting and Connecting the Base Station  
Follow these steps to mount and connect each base station.  
1. Use the mounting bracket as a template to position the base  
station and mark the screw positions.  
2. Use screws to attach the mounting bracket to a wall or ceiling.  
3. Set the base station dip switches, located on the back of the base  
station, to the required ISM frequency band.  
• On the first base station you install,  
set the dip switches to operate in the  
1 2 3  
upper half of the ISM band. From left  
to right, set to Down-Up-Down.  
• On the second base station, set the dip  
Upper half  
switches to operate in the lower half  
of the ISM band. From left to right,  
set to Down-Down-Up.  
ISM Band  
Lower half  
ISM Band  
4. Connect the telephone lines to the base station.  
a. Plug one end of the line cord into a  
telephone jack on the base station.  
b. Connect the other end into a telephone  
port on the system equipment.  
Note:Connect a maximum of three  
TCMs per base station to the system.  
c. Plug the small end of the power  
adapter into the back of the base  
station.  
d. Plug the other end into an AC outlet.  
Note:A red light flashes continuously  
on the base station when powered.  
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24 / Charging the T7406 Battery Pack  
5. Align the notches on the back of the base station with the  
mounting bracket on the wall.  
6. Push the base station against the brackets until they are securely  
connected.  
For the best radio reception, make  
sure the antenna on the base station  
is always at a 90° angle to the base  
station.  
Charging the T7406 Battery Pack  
Warning: It is imperative that you follow the steps in this section when  
you first initialize a base station and configure the first handset.  
Follow these steps to set up the charging unit:  
1. Plug the small end of the power  
adapter into the back of the  
charger.  
2. Plug the power adapter into an  
AC outlet.  
The back port (battery port) on the  
charger is used to charge the battery  
pack on its own.  
The front port supports the handset  
with an installed battery pack.  
The rechargeable battery pack must be fully charged before you use  
your T7406 handset for the first time.  
Note: Multiple handsets — If you are installing a number of handsets  
at once, follow these instructions for each handset before you  
start trying to configure the handsets to the base station.  
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Charging the T7406 Battery Pack / 25  
First-time Charging  
When you first setup your new handset, follow these steps to charge the  
battery and install it into the handset:  
1. Charge the battery pack in the back battery port of the charger for  
a minimum of 30 minutes.  
2. Install the battery pack in the handset.  
3. Charge the battery pack in the handset for a minimum of three  
hours.  
4. Trickle charge a spare battery pack in the back battery port of the  
charger for 12 hours.  
The following diagrams demonstrate where the battery pack fits onto a  
handset, and how to trickle charge the spare battery pack.  
Installing a Battery Pack into the Handset  
1. Position the battery pack in the  
bottom position on the back of the  
handset.  
2. Snap the top of the battery pack into  
place.  
Battery  
pack  
Charging the Handset  
1. Slide the handset into the charger.  
Note: If you  
are using a  
Make sure the handset and charger  
leather cover,  
contacts touch.  
it must be  
removed  
2. The handset charge indicator light  
turns on. The battery pack indicator  
before you  
light is red while it is charging.  
put your  
The battery pack fully charges in  
handset in  
approximately three hours. When  
charger.  
the battery pack is fully charged, the  
indicator light turns green.  
Note: Charging begins as soon as  
the handset is placed in the base  
station.  
3. Slide the spare battery pack into the  
back battery port. Make sure the  
battery pack and charger contacts  
touch.  
Indicator lights  
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26 / Charging the T7406 Battery Pack  
Note: Make sure the battery is properly installed in the handset or  
seated in the charger. If the T7406 battery is not properly  
installed, or if the battery level is extremely low, the six  
programmable buttons may light or flash simultaneously. This  
may also happen when the handset is in the charger.  
Exchange the handset battery pack regularly (once a week) if  
you have a second (spare) battery pack.  
The spare battery pack trickle charges in approximately 12  
hours. When the spare battery pack is fully charged, the  
indicator light turns green.  
Handset Power  
Power to the handset comes from the battery pack installed in the back  
of the handset. When the battery pack power level is low it must be  
recharged in the charging unit.  
Low battery  
When the power is low, a tone sounds every 15 seconds indicating you  
need to recharge the battery soon. Your call is automatically put on hold  
20 seconds after the battery pack runs out.  
Recharge  
Recharging begins as soon as you put the handset in the charging unit.  
Refer to Charging the T7406 Battery Pack on page 24.  
• Be sure that the handset and charger contacts touch. A red LED  
indicates the battery is charging.  
• To fully recharge the battery pack, leave the handset in the charger  
until the indicator light turns green.  
Note: If the T7406 battery is not properly installed, or if the battery  
level is extremely low, the six programmable buttons may light or  
flash simultaneously. This may also happen when the handset is  
in the charger.  
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Handset Configuration / 27  
Battery levels  
The following icons appear on the display.  
Indicates battery pack is fully charged.  
Indicates battery pack is 2/3 charged.  
Indicates battery pack is 1/3 charged.  
Indicates battery pack is completely  
discharged.  
Note: The battery level icons show approximate charge status values.  
You can talk continuously for up to five hours on the handset with a fully  
charged 1400 mAh battery pack. A fully charged battery pack has a  
standby time up to 72 hours. Using the backlight shortens talk and  
standby time.  
Handset Configuration  
This section describes how to set up handsets on a base station. Note  
that there is one extra step for setting up the first handset on a new base  
station.  
Important First-time Installation Information  
When performing the initial configurations on the handset, ensure that  
all the handsets you intend to configure have fully-charged battery  
packs installed.  
Since the handsets start scanning as soon as they are powered, you must  
set the handset ID #s first when you configure the handset to avoid  
conflicts between handset signals and the possibility of one set  
mirroring another.  
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28 / Handset Configuration  
If you install more than one base station on a system, ensure that you  
assign a unique Security code to each base station. However, all base  
stations have the same three Handset ID numbers (1, 2, or 3), which  
identify the handset to the base station.  
Identifying the Handsets to the System  
Each of the three handsets registered to a base station share an identical  
Security code, but each handset has a unique handset ID number of 1, 2,  
or 3.  
The handset ID number the handset is assigned to maps back to the  
TCM/RJ-11 jack on the back of the base station. The diagram below  
identifies which jack supports which handset ID number.  
Handset ID 1  
Handset ID 2  
Handset ID 3  
1
2
3
In turn, these numbers correspond to telephone records in the main  
system. In the system, these records identify each telephone with a local  
number, referred to as a DN (directory number). Since the records will  
be set up before you configure your handset, check with your system  
administrator to determine which local has been assigned to which port.  
From there, you can identify which Handset ID number should be  
assigned to each handset.  
Note: When a base station is relocated, the Handset ID number follows  
the set DN (system telephone record), if the Set relocation feature  
is on.  
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Handset Configuration / 29  
Assigning the Handset to the Base Station  
When you assign the first handset to a base station, you must send the  
security code to the base station. For subsequent handsets, you only  
need to identify the security code on the handset itself. This is  
explained in detail in later sections.  
This is the general process for setting up a T7406 handset:  
• Identify the handset to a unique Handset ID # (1, 2, or 3)  
Note: The handset ID #, which gets assigned to each handset,  
matches up to TCM/RJ-11 jack on the back of the base .  
station. Ask your system administrator which handset ID  
maps to which set DN on the system.  
• Change the default password for selecting a handset ID (default:  
000000)  
• Assign a Security code (S.S. code)  
• Send the Security code from the handset to the base station  
Note: Sending the security code to the base station is only  
performed for the first handsets. For subsequent handsets,  
you need only identify the security code on the handset.  
• Assign the ring type  
• Assign the ringer volume  
• Assign the language that appears on the handset display  
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30 / Handset Configuration  
Using the Handset Display Buttons  
The T7406 handset has a three-line display.  
The three display buttons located under the display are used to interact  
with the handset menus and the feature code messages that appear on the  
display.  
• The first line of  
the display  
shows handset  
messages and  
menu items.  
Ring Again?  
NO  
Feature message  
Button label  
EXIT  
YES  
Display icons  
• The second  
line displays  
Display button  
button labels in  
capital letters.  
• The third line displays the antenna/signal strength icon and the  
battery charge icon.  
Configuring the First Handset to a Base Station  
When you configure a handset to a new base station, you must ensure  
the base station receives the assigned security code. For subsequent  
handsets, the security code must be identical, but it does not need to be  
re-assigned to the base station.  
Other settings are the same for all handsets.  
Configuring the Handset ID Number  
Each of the three handsets registered to a base station share an identical  
Security code, but each handset has a unique Set ID of 1, 2, or 3.  
Follow these steps to set the handset ID and new password:  
1. Press the Options button.  
2. Press SHOW.  
3. Press NEXT until the display shows 6. Handset ID.  
4. Press SHOW.  
The display shows the current Handset ID #.  
• If this is the correct number, press OK and continue with  
the next section.  
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Handset Configuration / 31  
• If you want to change the number, follow these steps:  
a. Press CHANGE.  
The display shows Enter Password. (six digits)  
b. Enter the default password (000000).  
c. Press OK to accept the code.  
The display shows Press Digit 1 - 3. The current  
Handset ID # is displayed on the bottom left of the  
LCD.  
d. Press the digit that you want to assign to this handset.  
e. Press OK.  
The display shows 6. Handset ID.  
Changing the Handset ID Password  
After you enter the handset ID, if you want to change the password for  
the ID access, follow these steps:  
1. Press NEXT until the display shows 7. Chg Password.  
Note: This password is used to access the Handset ID option. If  
you decide not to change the password, press the Option  
button to exit the menu.  
2. Press SHOW.  
The display shows Enter old PWD.  
3. Enter the default six-digit password (000000) or the last password  
you entered.  
4. Press OK.  
The display shows Enter New PWD.  
5. Enter a new six-digit password.  
Note: For ease of administration, it is recommended that you use  
the same password as the one you used for the Security  
code/S.S. Code.  
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32 / Handset Configuration  
6. Press OK.  
The display shows Confirm New PWD.  
7. Re-enter the password.  
8. Press OK.  
The display shows PWD Changed!.  
9. Press the Options button to exit the Option menu  
The display changes to show the date and time.  
Password errors  
If you enter an incorrect password and the display shows PWD Error!,  
return to the 7. Chg Password menu item and try again.  
Lost password  
Make a note of the new password. If you forget your password, you will  
need to contact your Distributor for help to unlock the set.  
Assigning the Security Code  
After you assign the handset ID # to a handset, you need to configure  
the handset to a base station.  
Follow these steps to assign a Security code to the handset.  
1. Press the Options button.  
2. Press SHOW.  
3. Press NEXT until the display shows 4. Set S.S. Code :.  
4. Press CHANGE to assign a security code to the handset. The display  
shows Enter Password.  
5. Enter the six-digit password (default 000000).  
6. Press OK. The display shows Press 6 digits.  
7. Enter the six-digit Security code.  
The display changes to show the code as entered.  
8. Press OK to accept the code.  
The display shows 4. Set S.S. Code :.  
If you are assigning a handset to an existing base, your handset is now  
connected to the system.  
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Setting Handset Features / 33  
If you are assigning the first handset to a new base station (which has  
no security code), continue with the following steps:  
9. The display shows 4. Set S.S. Code :, press NEXT to get ready to  
send the security code to the base station.  
The display shows 5. Send S.S. Code.  
10. Unplug the AC power adapter connected to the base station, and  
plug it back in again.  
11. Within 15 seconds, press and hold the OK button for five seconds.  
This sends the Security Code to the base station. The display  
shows Send OK! and you hear a beep when the transfer is  
successful.  
Note: If the Security Code transfer fails, the display shows Send  
Error! To correct this, repeat steps 9 and 10.  
12. Press the Options button to exit the Option menu.  
The display changes to show the date and time.  
Configure the next handset to the base station  
Configure the second and third handsets to the base station using these  
procedures:  
30. Ensure you enter a different handset ID number (1, 2, or 3)  
for each handset you configure.  
2. If you want to change the handset ID password, continue with the  
steps in Changing the Handset ID Password on page 31.  
3. Once you have assigned a Handset ID #, continue with Assigning  
the Security Code on page 32 up to and including step 8.  
Setting Handset Features  
After you identify the handsets to the base station, you can set up the  
handset features:  
Ring Type  
To assign the ring type:  
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34 / Setting Handset Features  
1. Press the Options button.  
2. Press SHOW.  
The display shows 1. Ring Type.  
3. Press SHOW. The display shows Ring Type :1.  
Note: There is also a Ringer Off setting.  
4. Press CHANGE to listen to the four different rings available on your  
handset.  
5. Press OK to accept the ring type of your choice.  
6. Press the Options button to exit the Option menu.  
The display changes to show the date and time.  
Note: Ring Type can only be set through the Option menu on the  
handset. This feature cannot be set in system programming.  
Ringer Volume  
You can assign the ringer volume level for the handset. The ringer  
volume level assignment also affects the listening volume level.  
To assign the ringer volume:  
1. Press the Options button.  
2. Press SHOW.  
3. Press NEXT until the display shows 2. Ringer Volume.  
4. Press SHOW. The display shows Press Volume Bar.  
5. Press the volume bar on the left side of the handset. There are  
three ring volumes.  
6. Press OK. The display shows 2. Ringer Volume.  
7. Press the Options button to exit the Option menu.  
The display changes to show the date and time.  
Lock Handset  
You can lock the buttons on the handset to prevent unintentional  
dialpad or button presses.  
To assign the Lock Handset feature:  
1. Press the Options button.  
2. Press SHOW.  
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Setting Handset Features / 35  
3. Press NEXT until:  
The display shows 3. Lock Handset.  
4. Press OK to lock the handset.  
The display shows Handset Locked.  
5. Press the Options button to exit the Option menu.  
The display changes to show the date and time.  
To release the Handset Locked state, press the ® button, then press  
.  
Lock Handset notes:  
• An incoming call will automatically release the handset from  
Handset Lock mode.  
• The handset cannot be locked while you are on a call.  
Language  
≤•fi‚⁄  
Select the Primary Language for the display.  
≤•fi‚¤  
Select the Alternate Language 1 for the display.  
≤•fi‚‹  
Select the Alternate Language 2 for the display.  
≤•fi‚›  
Select the second Alternate Language 3 for the display.  
Note: For more information about language choices, talk to your system  
administrator.  
Handset System Feature Notes  
The following section provides some notes about system features that  
the handset has specific applications with.  
Ring Notification: If the set is idle and you press a line or intercom  
button, and then the button, the set will not get ring notification of  
an incoming call.  
To release the held line, press the line or intercom button, and then  
press ® .  
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36 / Setting Handset Features  
Priority call: If a Priority call is made to your T7406 telephone that  
does not have DND active, and the call is answered but the originating  
caller then releases the call, you must still press an intercom line and  
the button before the line is actually released. If you choose not to  
do this, the handset stops providing ring notification of incoming calls,  
refer to Ring Notification.  
Voice Call Deny (F88): This feature has been purposely set as the  
default for the handset, since voice calls cannot be made to the T7406  
handset. If this setting inadvertently gets turned off by the system  
administrator or the user, someone attempting to make a voice call to  
the handset may not receive the No Voice Call display on their  
telephone. As well, the call will continue as a normal call to the T7406  
set.  
LCD Contrast Level: This feature is not adjustable, either through the  
handset or through system programming. Contrast has been  
automatically set to an optimum level.  
T7406 and M7410 interaction: If there are any M7410 telephones  
installed on the system, you can attach only one base station and three  
handsets in the same area. In this case, the base station must be set to  
the upper band. Refer to Installing the Base Station on page 21 for  
instructions about setting the base station to the lower band.  
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Button Mapping on the Handset  
When you have completed the steps in Handset Configuration on page  
27, then, you can map the feature buttons on your set.  
The handsets have six feature buttons. These buttons can be  
programmed by your system administrator. You can also program the  
buttons from your handset. The following section describes the usual  
mapping of the buttons, based on the M7310 telephone button mapping.  
The illustration below shows examples of the default button mapping  
for the handset.  
Last No.  
Line 1  
Line 2  
Voice call  
Intercom  
Call Fwd  
The following two illustrations show the correlation between the T7406  
handset buttons and the M7310 and T7316 telephones, which are  
standard telephones used for Norstar and Business Communications  
Manager systems.  
M7310 to T7406  
M7310 Telephone  
T7406 Handset  
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38 / Button Mapping on the Handset  
T7316 to T7406  
T7316 Telephone  
T7406 Handset  
31  
33  
24  
26  
23  
25  
27  
29  
11  
13  
15  
01  
02  
03  
04  
05  
17  
19  
21  
06  
07  
08  
09  
10  
For more information, refer to Programming memory buttons on page  
39.  
Memory buttons  
Memory buttons are buttons on the handset that are assigned to  
functions other than Intercom or line buttons. For more information,  
refer to Button Mapping on the Handset on page 37.  
Press ≤ •‚to check a mem-  
ory or line button.  
The display will show you what is  
programmed onto the button.  
®
A
BC  
D
E
F
1
2
5
8
0
3
6
9
G
H
I
JK  
L
MNO  
4
7
PQ  
R
S
TU  
V
WX  
Y
Z
#
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Button Mapping on the Handset / 39  
Programming memory buttons  
You can program memory buttons with:  
• external autodial numbers  
• internal autodial numbers  
• features  
After you have programmed the memory buttons, record the names and  
numbers on the handset card. For more information, refer to Installing  
the T7406 Handset Accessories on page 46.  
External autodial  
To program an external autodial memory button:  
1. Press ≤•⁄.  
2. Press a memory button.  
3. Dial the external number.  
4. Press OK to store the number.  
5. Label the button.  
Internal autodial  
To program an internal autodial memory button:  
1. Press ≤•¤.  
2. Press a memory button.  
3. Dial the internal number.  
4. Press OK to store the number.  
5. Label the button.  
Features  
To program a feature memory button:  
1. Press ≤•‹.  
2. Press a memory button.  
3. Press and enter the feature code.  
4. Press OK to store the feature code.  
5. Label the button.  
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40 / Button Mapping on the Handset  
Refer to System Feature codes on page 40 for a list of the most common  
features. Your system administrator can also provide a list of all the  
feature codes that are available.  
Erase memory buttons  
To erase a memory button:  
1. Press ≤•⁄.  
2. Press the memory button you want to erase.  
3. Press OK to erase the button.  
Button Inquiry  
Use the Button Inquiry feature to determine what is programmed on the  
memory buttons on your handset.  
To use the Button Inquiry feature from the handset:  
1. Press ≤•‚.  
2. Press the button(s) you want to check, and read the display.  
3. Press or ® when you are finished.  
System Feature codes  
Contact your system administrator for information about all the feature  
codes that are available on your system and how they operate.  
Some of the most common Feature codes are:  
Button inquiry  
Call Forward  
≤•‚  
≤›  
Conference  
≤‹  
Do Not Disturb  
Last Number Redial  
Messages  
≤°fi  
≤fi  
≤⁄  
Page - General  
Page - Internal  
Page - External  
Page - Internal/External  
≤fl‚  
≤fl⁄  
≤fl¤  
≤fl‹  
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Button Mapping on the Handset / 41  
*
Ring Again  
Transfer  
≤¤  
≤flfl  
Voice Call  
*
Notes: In sleep mode, the user receives visual indication only. There  
is no beep tone indication.  
Memory buttons store telephone numbers or feature codes to give you  
one-touch dialing or feature activation. For more information about  
memory buttons, refer to Memory buttons on page 38.  
Handset Asleep (Save Battery Mode)  
When the handset is idle for longer than 15 seconds, it automatically  
goes into Handset Asleep mode to conserve the battery. Incoming calls  
automatically wake up the handset from the Handset Asleep mode.  
Pressing any button on the dialpad also wakes up the handset.  
Handset Asleep Mode Feature Conditions  
If the handset is in Handset Asleep mode, the following features are  
affected:  
• To receive Message Waiting Indication (MWI) when the handset  
is in Handset Asleep mode, press any button on the dialpad to wake  
up the handset.  
• If the Ring Again feature is active, and the handset goes into  
Handset Asleep mode, there is no indication of the Ring Again  
feature until you press a button on the dialpad to wake up the  
handset. To use the Ring Again feature, press any button on the  
dialpad to wake up the handset.  
Note: When the handset is awake, the Ring Again feature  
provides both an audio and a visual indication that the  
feature is active.  
• If the Do not disturb (DND) feature is active when the handset is in  
Handset Asleep mode, there will be no visual notification of  
incoming calls, including Priority calls.  
Priority calls when DND is active: When the handset is in  
Handset Asleep mode and a Priority call is made to the T7406,  
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42 / Make and Answer Calls  
it appears to the caller that the Priority Call was successfully  
connected, even though you receive no indication on your  
T7406 handset. As soon as you wake the handset, whenever  
you have DND set, you must always press the line or intercom  
button and the ® button. This ensures that your handset  
provides proper audible and visual Ring Notification.  
Make and Answer Calls  
This section provides a brief overview of how you use the handset to  
make and answer calls.  
Make a call  
Use intercom and extension buttons to make internal calls. See your  
system administrator for a list of numbers.  
To make a call:  
1. Press an intercom or line button.  
2. After the button lights, enter your system external line access  
code or line pool access code.  
3. Dial a number.  
4. Press ® to end the call.  
Answer calls  
When your telephone rings while you are on a call, you hear a beep  
tone through the receiver, unless DND on Busy has been set to Yes in  
the telephone system programming. In this case, only the indicator light  
on your handset will indicate that another call is coming in.  
To answer a call:  
1. Press the flashing red button.  
2. Press ® to end the call.  
Note:When the Options list is active, press the flashing red  
button to answer an incoming call.  
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Make and Answer Calls / 43  
Hold calls  
To retrieve a held call, press the button where the call is on hold. Calls  
are automatically placed on hold when you switch from one line to  
another.  
To hold a call:  
1. Press while on a call. The line button flashes.  
2. Press the flashing button to retrieve a held call.  
3. Press ® to end the call.  
Mute microphone  
To mute the microphone while you are on a call, press the Options  
button.  
To cancel Mute, press the Options button again.  
Note: While Mute is active, if you press any button on the face of the  
handset, the display will clear, but Mute will remain active. To  
turn off Mute, press the Options/Mute button on the side of the  
handset.  
Mute only works on the current call. If a second call comes in, and you  
want to mute that call, answer the call and press the Options/Mute  
button on the side of the handset.  
Page  
You can use the T7406 cordless handset to make a page announcement.  
The handset does not have a loudspeaker so it cannot be paged.  
To make a page announcement:  
1. Press ≤fl‚ and SETS, SPKR or BOTH to make a General page  
The announcement is made over telephone and/or external  
speakers to all telephones in system that can receive Pages.  
• Press ≤fl⁄ to make an Internal page.  
The announcement is made over the telephone speakers  
of all telephones in the system that can receive pages.  
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44 / Customize a handset  
• Press ≤fl¤ to make an External page.  
The announcement is made through external speakers.  
• Press ≤fl‹ to make an Internal/External page.  
The announcement is made over both the telephone  
speakers and the external speakers.  
2. Press ®to end the page announcement.  
Customize a handset  
You can customize some of the handset features according your  
preferences.  
To customize your handset, use the Options button to access the  
Options list. Use the display buttons on the handset to navigate through  
the Options list to find the settings you want. Refer to Setting Handset  
Features on page 33.  
Backlight On/Off  
Your handset display has a backlight that is helpful in low light  
conditions.  
To activate the backlight, press any button on the dialpad.  
Note: The battery talk time is reduced with the continuous use of the  
backlight. The backlight automatically turns off if the handset is  
idle for more than five seconds.  
Helpful hints  
If your T7406 telephone is not functioning as you expect, review the  
following table for possible solutions. If the problem persists, contact  
your system administrator.  
Problem  
Possible Cause  
Suggestion  
You hear warning tones. Battery pack is not  
Recharge the battery pack.  
Ensure the handset is  
placed properly in the  
charger.  
The handset display  
shows the discharged  
battery icon.  
charged sufficiently.  
(Charger LCD turns on)  
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Helpful hints / 45  
Suggestion  
Problem  
Possible Cause  
You hear warning tones. Handset is out of  
Move within range of the  
base station.  
If you are on an active call  
when you move out of  
range, the call will  
The handset display  
shows Out of range...  
and the antenna/signal  
strength icon  
range of the base  
station.  
disappears.  
automatically be placed on  
hold until you return into  
range, or until the other  
party hangs up.  
The handset display  
shows Scanning... but  
the antenna/signal  
Handset and base  
station have different code to the handset.  
Security codes.  
Assign the same Security  
Assigning the Security  
Code on page 32.  
strength icon is present.  
The six programmable  
buttons on the handset  
begin to light/flash  
simultaneously. light or  
flash.  
This condition can  
occur when:  
To remedy conditions:  
• when the bat-  
tery power is  
• recharge the battery  
extremely low  
• when you have  
just replaced the  
battery and it is  
not seated prop-  
erly in the hand-  
set  
• Reinstall the battery in  
the handset  
• when the hand-  
set is sitting in  
the recharger  
• ensure the handset is  
seated properly in the  
recharger  
Cleaning battery contacts  
Clean all charging contacts on the handset and charger with a soft, dry  
cloth on a regular maintenance cycle to maintain a good charge  
connection. Do not use water or any other liquids or solvents for this  
purpose.  
T7406 Installation Guide  
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46 / Installing the T7406 Handset Accessories  
Installing the T7406 Handset Accessories  
This section describes how to use the utility accessories on your  
handset.  
The Handset Card  
On the handset card, you can write names  
or numbers identifying the six memory  
buttons on the handset. For more  
information, refer to Button Mapping on  
the Handset on page 37.  
To install the card:  
A
BC  
D
E
F
1
4
7
2
5
8
0
3
6
9
G
H
I
JK  
L
MNO  
1. Insert the handset card into place.  
PQ  
R
S
TU  
V
WX  
Y
Z
#
2. Cover the handset card with the  
plastic lens.  
The wrist strap  
To free your hands, yet still keep your  
handset at your fingertips, you can attach a  
wrist strap to the handset.  
To attach the wrist strap to the handset:  
1. Put the loop of the wrist strap through  
the hook on the side of the handset.  
2. Put the other end of the strap through  
the loop.  
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Installing the T7406 Handset Accessories / 47  
The belt clip  
Use the belt clip to clip the handset onto  
your clothes or carrying case to free your  
hands for other tasks.  
To attach the belt clip to the handset:  
1. Line up the side tabs of the belt clip  
with the notches on the sides of the  
handset.  
2. Snap the belt clip into place.  
To remove the belt clip from the handset:  
1. Use a small coin to release the side  
tabs of the belt clip from the notches  
on each side of the handset.  
2. Pull the clip off the handset.  
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48 / Optional accessories  
Optional accessories  
The following optional accessories are available for your T7406  
telephone.  
Contact your system administrator for more information about ordering  
these accessories.  
Leather carrying cases  
A leather carrying case gives you a convenient way to carry your  
handset around the office.  
When you need to recharge your handset, the leather case must be  
unbuttoned and removed enough to allow the handset to be properly  
seated in the charger.  
M7015-S: Standard model  
(side view)  
M7020-C: Custom model  
(front view)  
Headset Compatibility  
A headset offers you handsfree operation of your handset when you use  
a belt clip or leather case to attach the handset to your belt or carrying  
case.  
Note: The provide headset compatibility, the Handsfree feature must be  
enabled in system programming. If Handsfree is disabled, certain  
call handling features may not work as intended.  
Note: No audible DTMF tones can be heard through the earpiece when  
you are wearing a headset with your T7406 handset. Dialpad  
button pressing is still received normally at the far end.  
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Optional accessories / 49  
Headset installation  
Follow these steps to attach a headset to the handset port.  
1. Lift up and remove the rubber tab to expose the headset port.  
2. Insert the headset jack into the headset port.  
Note: The headset jack has a 2.5 mm opening. An adapter  
may be required if your headset has a 3.5 mm pin.  
The handset microphone and earphone are disabled when the headset is  
connected to the headset port. If you use the headset, use the Options  
button to answer calls and to use the Options List to customize features.  
When you remove the headset from the headset port, handset operation  
is enabled automatically.  
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50 / Regulatory information  
Regulatory information  
Canadian Regulations  
Note: This equipment may only be connected to the Host equipment  
and may not be connected directly to the Public Switched  
Telephone Network (PSTN).  
This device complies with Industry Canada CS03 Issue 8  
specifications, and ICES-003 and RSS-210 Canadian EMI  
requirements.  
Operation is subjected to the following two conditions: (1) This device  
may not cause harmful interference and (2) this device must accept any  
interference received, including interference that may cause undesired  
operation.  
Note: This device complies with Class A EMI requirements when  
connected to host equipment that meets Class A and Class B  
when connected to host equipment that meets Class B.  
Privacy of communications may not be assured when using this phone.  
Do not attempt to repair this equipment. If you experience trouble, call  
or write for warranty and repair information.  
Nortel Networks  
30 Norelco Drive,  
Weston, Ontario, M9L 2X6  
Canada  
US Regulations  
Federal Communications Commission (FCC) Notice  
FCC registration number: This telephone equipment complies with  
Part 68, Rules and Regulations, of the FCC for connection to Host  
equipment and may not be connected directly to the Public Switched  
Telephone Network (PSTN).  
(The FCC registration number appears on a sticker affixed to the  
bottom of the base.)  
Do not attempt to repair this equipment. If you experience trouble, call  
or write for warranty and repair information.  
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Regulatory information / 51  
Nortel Networks  
640 Massman Drive,  
Nashville, TN, 37210  
USA  
Hearing aids: This telephone is compatible with hearing aids equipped  
with an appropriate telecoil option.  
Programming emergency numbers: When programming emergency  
numbers and/or making test calls to emergency numbers:  
1. Remain on the line and briefly explain to the dispatcher the  
reason for calling before hanging up.  
2. Perform such activities in the off-peak hours, such as early  
mornings or late evenings.  
EMI/EMC (FCC Part 15)  
Note: This device complies with Class A EMI requirements when  
connected to host equipment that meets Class A and Class B  
when connected to host equipment that meets Class B. Consult  
the System Installation Guide for the applicable compliance.  
Privacy of communications may not be assured when using this phone.  
Changes or modifications not expressly approved by the party  
responsible for compliance could void the user’s authority to operate  
the equipment.  
For Class A Host equipment  
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 in a commercial environment.  
This equipment generates, uses and can radiate radio frequency 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.  
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52 / Regulatory information  
For Class B Host equipment  
This equipment has been tested and found to comply with the limits for  
a Class B digital device, pursuant to Part 15 of the FCC Rules. These  
limits are designed to provide reasonable protection against harmful  
interference in a residential installation.  
This equipment generates, uses and can radiate radio frequency energy  
and, if not installed and used in accordance with the instructions, may  
cause harmful interference to radio communications.  
However, there is no guarantee that interference will not occur in a  
particular installation.  
If this equipment does cause harmful interference to radio or television  
reception, which can be determined by turning the equipment off and  
on, the user is encouraged to try to correct the interference by one or  
more of the following measures:  
• Reorient or relocate the receiving antenna.  
• Increase the separation between the equipment and receiver.  
• Connect the equipment into an outlet on a circuit different from that  
to which the receiver is connected.  
• Consult the dealer or an experienced radio/TV technician for help.  
Privacy of communications may not be assured when using this  
telephone.  
Changes or modifications not expressly approved by the party  
responsible for compliance could void the user’s authority to operate  
the equipment.  
Safety  
This product meets all applicable requirements of both the CSA C22.2  
No. 950-95 and UL-1950 Edition 3.  
Important Safety Instructions  
WARNING: To avoid electrical shock hazard to personnel or equipment  
damage observe the following precautions when installing telephone  
equipment.  
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Regulatory information / 53  
Installation  
1. Never install telephone wiring during a lightning storm.  
2. Never install telephone jacks in wet locations unless the jack is  
specifically designed for wet locations.  
3. Never touch uninsulated telephone wires or terminals unless the  
telephone line has been disconnected at the network interface.  
4. Use caution when installing or modifying telephone lines. The  
exclamation point within an equilateral triangle is intended to  
alert the user to the presence of important operating and  
maintenance (servicing) instructions in the literature  
accompanying the product.  
This symbol on the product is used to identify the  
following important information: Use only with a  
CSA or UL certified CLASS 2 level C power supply,  
as specified in the User Card.  
Use  
When using your telephone equipment, basic safety precautions should  
always be followed to reduce risk of fire, electric shock and injury to  
persons, including the following:  
1. Read and understand all instructions.  
2. Follow the warnings and instructions marked on the product.  
3. Unplug this product from the wall outlet before cleaning. Do not  
use liquid cleaners or aerosol cleaners. Use a damp cloth for  
cleaning.  
4. Do not use this product near water, for example, near a bath tub,  
wash bowl, kitchen sink, or laundry tub, in a wet basement, or  
near a swimming pool.  
5. Do not place this product on an unstable cart, stand or table. The  
product may fall, causing serious damage to the product.  
6. This product should never be placed near or over a radiator or  
heat register. This product should not be placed in a built-in  
installation unless proper ventilation is provided.  
7. Do not allow anything to rest on the power cord. Do not locate  
this product where the cord will be abused by persons walking on  
it.  
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54 / Regulatory information  
8. Do not overload wall outlets and extension cords as this can  
result in the risk of fire or electric shock.  
9. Never spill liquid of any kind on the product.  
10. To reduce the risk of electric shock, do not disassemble this  
product, but have it sent to a qualified service person when some  
service or repair work is required.  
11. Unplug this product from the wall outlet and refer servicing to  
qualified service personnel under the following conditions:  
a.When the power supply cord or plug is damaged or  
frayed.  
b. If the product has been exposed to rain, water or liquid  
has been spilled on the product, disconnect and allow the  
product to dry out to see if it still operates; but do not  
open up the product.  
c. If the product housing has been damaged.  
d. If the product exhibits a distinct change in performance.  
12. Avoid using a telephone during an electrical storm. There may be  
a remote risk of electric shock from lightning.  
13. Do not use the telephone to report a gas leak in the vicinity of the  
leak.  
14. CAUTION: To eliminate the possibility of accidental damage to  
cords, plugs, jacks, and the telephone, do not use sharp  
instruments during the assembly procedures.  
WARNING: Do not insert the plug at the free end of the handset  
cord directly into a wall or baseboard jack. Such misuse can  
result in unsafe sound levels or possible damage to the handset.  
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T7406 Installation Guide  
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