AT&T 7720 User Manual
Page 51
IN CASE OF DIFFICULTY
The caller’s name or phone number is not displayed during
Call Waiting
•
Make sure you subscribe to combined Caller ID with Call Waiting
service.
•
If you subscribe to the combined service, make sure you have this
feature turned on. (See “Turn Off Caller ID with Call Waiting” in the
CALLER ID section of this manual for directions on checking the status
of this feature.)
•
The screen will not display the call information if someone is on an
extension phone.
•
Caller ID with Call Waiting feature is inactive during a power failure.
The Memory Match feature does not work
If the call is from a location using multiple lines, the calling number might
not match the number you stored in memory.
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