Options While On Calls - AT&T 5643B User Manual

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2/13/1950
Telephone Operation

Options while on calls

Volume control
Press the top ( + ) or the bottom ( - ) of the
button on the side of the handset to adjust listening vol-
Volume ume. Each button press raises or lowers volume by one
level.
When you change the volume level, the new setting is
saved. The new volume level will be applied each time
you use the handset, speakerphone or headset.
Call waiting
If you subscribe to Call Waiting service with your local
telephone service provider, you will hear a beep if
someone calls while you are already on a call. Press
PHONE/FLASH
take the new call. You can press
time to switch back and forth between calls.
3-way conference calls
While a call is in progress, a person at one other hand-
set can press
A person at either handset can press
handset in the base or charger, to drop out of the con-
ference call, but the call will not be terminated until all
handsets hang up.
Only two handsets can be connected to an outside call.
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to put your current call on hold and
or
PHONE SPEAKER
13
VOLUME
at any
PHONE/FLASH
to join the call.
, or place the
OFF