AT&T TL7900 User Manual page 38

Accessory cordless headset
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Appendix
Troubleshooting
My calls cut in and out while I'm using my cordless headset.
• Other electronic products such as HAM radios and other DECT
phones, can cause interference with your cordless headset. Try
installing your headset base or telephone base as far away as
possible from these types of electronic devices.
• Do not use the headset near a microwave oven. You may
experience decreased performance while the microwave oven
is operating.
• If your headset is located near a modem, move your headset
and modem further apart from each other.
Relocate your telephone base to a higher location. The headset
will have better reception when not installed in a low area.
If other phones in your home or office are having the same
problem, the problem is in your wiring or telephone service.
Contact your telephone service provider (charges may apply).
I cannot register the headset.
If you want to register this headset to an AT&T DECT 6.0
telephone, make sure the telephone is compatible with this
headset. Visit
list of compatible telephones.
Your headset base or telephone has a limitation of the number
of headsets that can be registered to it. If the maximum
number of headsets are already registered, you need to
deregister the registered devices before you can register this
headset. Refer to the user's manual of the headset base or
telephone for more details.
www.telephones.att.com/headsets
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