AT&T DAL75111 - Telephone Base Ringer Volume

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Telephone settings
Telephone base ringer volume
When the telephone base is idle, press
VOLUME or VOLUME on the telephone
base to set the ringer volume level (1-6), or turn
the ringer o. A sample of the ringer sounds
as you adjust the volume. The telephone base
announces, “Base ringer is o” when you set the
volume to 0.
Note: If a handset is on an outside call, the telephone base volume
cannot be changed.