VTech IS7121-22 User Manual page 101

Appendix
Troubleshooting
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 line, you must install a DSL filter between the telephone
line cord and the telephone wall jack (page 2). The filter prevents noise and caller
ID problems as a result of DSL interference. Contact your DSL service provider for
more information about DSL filters.
• You may be able to improve the performance of your cordless phone by installing
your new telephone base as far as possible from any other existing 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 phone near a microwave oven or on the same electrical
outlet. You may experience decreased performance while the microwave oven
is operating.
• If you plug your phone in with a modem or a surge protector, plug the phone (or
modem/surge protector) into a different location. If this does not solve the problem,
relocate your phone or modem farther apart from one another, or use a different
surge protector.
• Relocate your phone to a higher location. The phone may have better reception in a
high area.
• If other phones in your home are having the same problem, contact your telephone
service provider (charges may apply).
I experience poor sound quality when using the handset speakerphone.
• For increased sound quality while using the handset speakerphone, place the
handset on a flat surface with the dialing keys facing up.
I hear other calls while using my phone.
• Disconnect the telephone base from the telephone jack, and plug in a different
telephone. If you still hear other calls, call your telephone service provider.
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