Panasonic GD76 - Manual (Page 51)

3 Enter a value (in units) at which time you would like the warning to
sound Z Q twice
Call Identification
In the Call Service menu, the Caller’s ID and Withhold ID functions allow
you to check the status of whether a Caller’s Identification is sent or can be
received. (Withhold ID R)
Note: When checking the status the phone must be registered with a
network.
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Call Information