Telephone operation

Options while on calls

Audio assist™

Some voices will sound louder and clearer if you press AUDIO ASSIST while you are on a call using the handset. Press AUDIO ASSIST again to turn the feature off. This feature automatically turns off when you hang up. You must press AUDIO ASSIST every time you want to activate the feature.

Mute

Use this feature during a telephone conversation to silence the handset or speakerphone microphone.

To mute the call:

• During a telephone conversation, press MUTE to

silence the microphone. The MUTE light turns on. You hear the other party, but the other party does not hear you.

To un-mute the call:

• Press MUTE again and resume speaking. The MUTE light turns off.

-OR-

Mute is automatically canceled when you end the call.

NOTE: Switching between the handset and speakerphone cancels the mute function.

Audio assistTM is a trademark of Advanced American Telephones.

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AT&T CL2939 user manual Options while on calls, Audio assist, Mute, To mute the call, To un-mute the call