AT&T TL7900 User Manual page 39

Accessory cordless headset
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Appendix
Troubleshooting
The
light on the headset is off while charging.
Make sure the power cord is plugged in correctly and securely.
Make sure that the battery is securely installed in the
cordless headset.
Make sure the headset is sitting properly in the charger
to charge.
Unplug the unit's electrical power. Wait for 15 seconds,
then plug it back in. Allow up to one minute for the cordless
headset and headset charger to reset.
Clean the cordless headset and headset charger charging
contacts each month using a pencil eraser or dry cloth.
Your headset or headset charger might be defective. Refer to
the Limited warranty section on pages 46-48 for
further instructions.
Common cure for electronic equipment.
If the unit does not seem to be responding normally, try putting
the cordless headset in its charger. If it does not fix the problem,
do the following (in the order listed):
1.
Disconnect the power to the headset charger.
2.
Remove the cordless headset battery.
3.
Wait a few minutes.
4.
Connect the power to the headset charger.
5.
Install the battery again, and then place the cordless
headset into the headset charger.
6.
Wait for the cordless headset to reestablish its connection
with the headset base or telephone base. Allow up to one
minute for this to take place.
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