Options While On Calls; Set Handset, Speakerphone, Headset Volume; Mute; Flash - AT&T 983 User Manual

Telephone operation

Options while on calls

Set handset, speakerphone, headset volume

While on calls, press VOLUME to increase or
decrease the listening volume.
There will be a triple-beep when you reach the
maximum or minimum volume setting.

Mute

While on a call, press MUTE to silence the micro-
phone during a conversation. You will be able to
hear the person at the other end, but that person
cannot hear you until you press MUTE again to
resume the conversation.

Flash

Press FLASH to activate services such as call
waiting or three-way calling. You may have to
press other keys before or after pressing FLASH
as explained in the custom-calling instructions
provided by your local telephone company.
If you subscribe to call waiting service with your
local telephone company, there will be a beep if
there is an incoming call while already on a call.
Press FLASH to put the current call on hold and
take the new call. Press FLASH anytime to switch
back and forth between calls.

Temporary tone dialing

If there is dial pulse (rotary) service, you can
change from pulse to tone dialing during a call by
*
pressing . This can be useful if it is necessary to
send tone signals for long-distance services.
After you hang up, the telephone automatically
returns to dial pulse (rotary) service.
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