Telephone settings

Volume control

Ringer volume

Use the RINGER VOL switch on the right side of the telephone base to set the ringer volume or turn the ringer off.

Adjust the RINGER VOL switch to set the ringer volume to off, low, middle or high. When set to off, the screen shows .

NOTE: The volume of the priority call tone cannot be adjusted. Refer to Priority call on page 49 for details.

Handset volume

Use the VOL switch on the right side of the telephone base to adjust the listening volume from the handset.

Speakerphone volume

Use the VOL switch on the right side of the telephone base to adjust the listening volume from the speakerphone.

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AT&T CL4939 user manual Volume control, Ringer volume, Handset volume, Speakerphone volume