LG C2200 User Manual page 141

General functions
Answering an incoming call
To answer an incoming call when the handset is ringing, simply
press the key. The handset is also able to warn you of an
incoming call while you are already on a call. A tone sounds in the
earpiece, and the display will show that a second call is waiting.
This feature, known as Call waiting, is only available if your
network supports it. For details of how to activate and deactivate it
see Call waiting on page 81.
If Call waiting is activated, you can put the first call on hold and
answer the second, by pressing or by selecting right soft key,
then Hold & Answer. You can end the current call and answer the
waiting call by selecting right soft key and then End & Answer.
Rejecting an incoming call
You can reject an incoming call without answering by simply
pressing the key.
During a call, you can reject an incoming call by pressing the left
soft key [Menu] and selecting the Multiparty/Reject or by pressing
the key.
Muting the microphone
You can mute the microphone during a call by pressing the left soft
key [Options], then selecting Mute. When the handset is muted, the
caller cannot hear you, but you can still hear them. The handset
can be unmuted by pressing the [Unmute].
Switching DTMF tones on during a call
To turn DTMF tones on during a call, press the left soft key, and
then select DTMF on. DTMF tones can be turned off the same way.
DTMF tones allow your phone to make use of an automated
switchboard.
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C2200 User Guide