Tone Commander 8610 - User Options

Tone Commander 8610/8620 User Guide 19
Adjusting the Ringer Volume
The Volume keys adjust the ringer volume while you are not on a call.
The telephone will ring once with the new ringer volume setting, and
the new setting will be shown briefly in the display.
When the volume is at the lowest setting, the phone will display
"RINGER OFF" instead of the date and time when idle.
Press the Volume Up key while you are not on a call to enable
the ringer.
RINGER OFF (VOL^ = ON)
REDIAL