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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AT&T 7720 user manual Memory Match feature does not work