Telephone operation

Options while on calls

Conference calls

Talk privately with one caller

. Press HOLD.

2. Press the LINE button of the person with whom you wish to speak privately.

3. Press CONFERENCE to continue the conference call.

To disconnect one party from a conference call and keep the other on the line, press the LINE button of the call you want to continue.

Low battery indicator

The screen displays Batt when the battery needs to be replaced, or when no battery is installed.

Lights and what they mean

LIGHT:

STATUS:

MEANS:

LINE, green

On steadily

This line is selected for use or is the

 

 

designated primary line.

 

 

 

 

LINE, red

On steadily

This line is in use.

 

Flashing slowly

This line is on hold.

 

Flashing quickly

This line is ringing.

 

 

 

 

MUTE

On

This telephone is muted.

 

SPEAKER

On

You are on a speakerphone call.

 

Flashing

This telephone is dialing an Auto Redial

 

 

call.

 

 

The microphone is not active.

 

 

 

 

HEADSET

On

You are on a headset call.

NEW CALL

On steadily

You have unreviewed call history on

 

 

this line.

 

Flashing

You have new voicemail messages

 

 

waiting on this line.

 

 

 

 

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AT&T 993 user manual Conference calls Talk privately with one caller, Low battery indicator, Lights and what they mean