AT&T EL52103 - Telephone Base Ringer Volume

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Telephone settings
Telephone base ringer volume
When the telephone base is not in use, press
/ /-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.