AT&T Marathon User Manual page 48

Appendix
Troubleshooting
I cannot hear a ring tone from the headset when there is an
incoming call.
• If you have pressed MUTE/
ringing, it mutes the ring tone of the headset. The ring tone
resumes on the next call.
• If you are using a handset lifter, see the handset lifter
user's manual.
• 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.
• The layout of your home or office might be limiting the
operating range. Try moving the headset base to another
location, preferably on an upper floor.
• Test a working phone at the phone jack. If another phone has
the same problem, the problem is the phone jack, wiring or
telephone service. Contact your telephone service provider
(charges may apply).
• Other electronic products such as HAM radios and other DECT
phones, can cause interference with your cordless headset.
Try installing your headset as far away as possible from these
types of electronic devices.
• Remove the battery and install again. Place the cordless
headset in the headset base. Wait for the cordless headset to
reestablish its connection with the headset base. Allow up to
one minute for this to take place.
• Your telephone line cord might be defective. Try installing a
new telephone line cord.
on the headset when it is
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