LG C1100 - Manual (Page 23)

Additional Functions
23
1-4 Answering an Incoming Call
To answer an incoming call when the handset is ringing, simply
press the
S [Send] key.
The handset is also able to warn you of an incoming call while you
are already in 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 [Menu 4-3-4].
If Call Waiting is on, you can put the first call on hold and answer
the second, by pressing
S [Send] or by selecting < [Answer],
then Hold & Answer.
You can end the current call and answer the waiting call by
selecting
< [Menu], then End & Answer.
1-5 Rejecting an Incoming Call
When not in a call you can reject an incoming call without answering
it by simply pressing the
E [End] or for a long time when the flip
is closed.
When in a call you can reject an incoming call by pressing the
<
[Menu] key and selecting Multiparty / Reject or by pressing
E
[End] key.
1-6 Muting the Microphone
You can mute the microphone during a call by pressing the
<
[Options] key then selecting Mute. The handset can be unmuted by
pressing the
< [Unmute].
When the handset is muted, the caller cannot hear you, but you can
still hear them.