AT&T 993 2-Line - Manual (Page 63)

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Appendix
Troubleshooting
Other electronic products can cause interference
to your telephone. Try installing your telephone as
far away as possible from the following electronic
devices: wireless routers, radios, radio towers, pager
towers, cellular telephones, digital telephones, room
monitors, televisions, VCRs, personal computers,
kitchen appliances, wireless routers, and other cordless
telephones.
If you have a headset plugged into the telephone, try
unplugging it and firmly plugging it in again.
If your telephone is plugged in with a modem or a
surge protector, plug the telephone (or modem/surge
protector) into a different location. If this doesn't
solve the problem, relocate your telephone or modem
farther apart from each other, or use a different surge
protector.
Disconnect the telephone base from the modular jack
and plug in another corded telephone. If the calls are
still not clear, the problem is probably in the wiring
or local service. Contact your local service company
(charges may apply).
Do you have DSL service? If yes, you need to have a
DSL filter installed. Contact your DSL service provider
for a DSL filter. •
•
•
•
•
My calls cut in
and out when
I am using the
telephone.
I hear other calls
when using the
telephone. Disconnect the telephone base from the telephone
jack. Plug in a different telephone. If you still hear other
calls, the problem is probably in the wiring or local
service. Call your telephone service provider. •