f
If your phone is plugged in with a modem or a surge protector,
plug the phone (or modem/surge protector) into a different
location. If this doesn’t solve the problem, relocate your phone
or modem farther apart from one another, or use a different
surge protector.
f
Relocate your phone to a higher location. The phone may have
better reception when installed in a high area.
f
Disconnect the telephone base from the telephone wall jack and
plug in a working telephone. If the other phones in your home
are having the same problem, the problem is in your wiring or
telephone service. Contact your telephone service provider
(charges may apply).
I experience poor sound quality when using the speakerphone.
f
For increased sound quality while using the speakerphone, place
the handset on a flat surface with the dialing keys facing up.
My cordless handset does not ring when I receive a call.
f
Make sure that the ringer is not off. Refer to
Ringer volume
in the user’s manual provided with your
DLP73210/DLP73410/
DLP73440/DLP73540
telephone.
f
Make sure you plug the telephone line cord securely into the
telephone base and telephone jack. Make sure you plug in the
power cord securely.
f
The cordless handset may be too far from the telephone base.
f
Charge the battery in the cordless handset for at least 10 hours.
For optimum daily performance, return the cordless handset to
the telephone base or charger when not in use.
f
You may have too many extension phones on your telephone
line to allow all of them to ring simultaneously. Try unplugging
some of the other phones.
f
The layout of your home or office might be limiting the
operating range. Try moving the telephone base to another
location, preferably on an upper floor.
Troubleshooting
Appendix
22