AT&T SB67138 - Manual (Page 100)

My telephone base isn’t performing normally.
Make sure you plug the power cord securely into the telephone base.
Plug the power adapter into a different working electrical outlet without
a wall switch.
Reset the telephone base. Unplug the electrical power and remove all the
batteries. Wait 15 seconds then plug the power adaptor back in and install
the batteries again. Allow up to one minute for the telephone base to reset.
Other electronic products such as HAM radios and other DECT phones can
cause interference with your cordless phone. Try installing your phone as
far away as possible from these types of electronic devices.
I get noise, static, or weak signals even when I’m near the telephone base.
If you subscribe to high-speed Internet service (DSL - digital subscriber line)
through your telephone lines, you must install a DSL filter between each
telephone line cord and telephone wall jack. The filter prevents noise and
caller ID problems as a result of DSL interference. Please contact your DSL
service provider for more information about DSL filters.
You may be able to improve the performance of your telephone base by
installing your new telephone base as far as possible from any other existing
corded or cordless telephone system that may already be installed.
Other electronic products such as HAM radios and other DECT phones can
cause interference with your cordless phone. Try installing your phone as
far away as possible from these types of electronic devices.
Do not install this telephone base near a microwave oven or on the same
electrical outlet. You might experience decreased performance while the
microwave oven is operating.
If you plug your telephone in with a modem or a surge protector, plug the
telephone base (or modem/surge protector) into a different location. If
this does not solve the problem, relocate your telephone base or modem
farther apart from one another, or use a different surge protector.
Relocate your telephone to a higher location. The telephone might have
better reception in a high area.
If the other telephones in your building are having the same problem,
contact your telephone service provider.
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Appendix
Troubleshooting
94