AT&T TL7900 User Manual page 37

Appendix
Troubleshooting
• The layout of your home or office might be limiting the
operating range. Try moving the headset base or telephone
base to another location, preferably to a higher location.
• 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.
• Install the battery again, and then place the cordless headset
in the headset charger. 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.
• Your telephone line cord may be defective. Install a new
telephone line cord.
• 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).
• Test a working phone at the phone jack. If another phone has
the same problem, there may be a problem with the phone
jack, wiring or service. Contact your telephone service provider
(charges may apply).
I hear other calls while using my headset.
• Plug a different telephone into the telephone jack that you
are currently using. If you still hear other calls, the problem
is probably in your building's wiring or telephone service. Call
your telephone service provider.
I want to use my headset with a different headset base or
telephone base.
• You need to deregister the headset from the current headset
base or telephone base (pages 12-13), and then register it to
the new headset base or telephone base (pages 8-11).
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