AT&T 983 - Manual (Page 18)

15
Telephone operation
Options while on calls
Set handset, speakerphone, headset volume
While on calls, press
VOLUME to adjust the
listening volume.
There will be a triple-beep when you reach the
maximum or minimum volume setting.
Mute
The mute function allows you to silence the
microphone. You can hear the caller, but the call-
er will not be able to hear you.
To mute the call:
• Press
MUTE to silence the microphone.
To un-mute the call:
• Press
MUTE again and resume speaking.
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.
1. Press
FLASH to put the current call on hold
and take the new call.
2. 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.
1. Press and release
*
. Buttons pressed after this
send touch-tone signals.
2. Dial the number.
3. After you hang up, the telephone automatically
returns to dial pulse (rotary) service.
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