AT&T CL82450 - Options While on Calls; Volume Control; Call Waiting; Mute

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Volume control
While on a call, press qCID/-VOLUME to decrease or press pDIR/VOLUME+ to
increase the listening volume. You can set the listening volume to one of five
levels.
NOTES:
1. Handset and speakerphone volume settings are independent.
2. When the volume reaches the minimum or maximum setting, you hear
two beeps.
Call waiting
If you subscribe to call waiting service from your telephone service provider,
you hear two beeps if someone calls while you are already on a call. Press
PHONE/FLASH to put your current call on hold and take the new call. Press
PHONE/FLASH at any time to switch back and forth between the calls.
NOTE: Missed call waiting calls are not counted as missed calls.
Mute
Use the mute function to turn off the microphone. You can hear the caller,
but the caller does not hear you.
To mute a call:
• Press MUTE/DELETE. When mute is on, the handset
screen shows Muted for a few seconds and MUTE
displays until you turn off mute.
To end mute a call:
• Press MUTE/DELETE again. When mute is off,
Microphone ON appears temporarily on the
handset screen.
Options while on calls
Phone 0:00:30
Muted
MUTE
MUTE/DELETE
Phone 0:00:30
Microphone ON
Telephone operation
qCID/-VOLUME or
pDIR/VOLUME+