LG GD570 - Manual (Page 69)

67
Switching off the Microphone (Mute)
During a call, you can temporarily switch your
phone’s microphone off, so that the other person
cannot hear you.
Press B Mute soft key during a call.
The other person will not be able to hear you. The
Mute icon will be displayed at the top left of the
screen.
To switch the microphone back on:
Press B Unmute soft key. The other person can
hear you again.
Call Waiting
You can answer an incoming call while you have
a call in progress, if this service is supported by
the network and you must have previously set the
Call Waiting option (in the Call Settings menu) to
Activate.
You are then notified of a call waiting by two beeps.
To answer a call waiting while you have a call in
progress:
Press either the 1 Accept soft key or to
answer the incoming call. The first call is
automatically placed on hold.