LG W5220C Guide De L'utilisateur page 192

Additional Functions
1-4 Answering an Incoming Call
To answer an incoming call, simply press the [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.
If Call Waiting is on, you can put the first call on hold and answer the
second, by pressing [Send] or by selecting the [Answer] key.
You can end the current call and answer the waiting call by selecting
the [Menu] key, then End & Answer.
1-5 Rejecting an Incoming Call
You can reject an incoming call without answering by simply
pressing the [End] key.
When in a call you can reject an incoming call (1st call) by pressing
the [Menu] key and selecting Multiparty/End and Answer or by
pressing [End] key.
1-6 Controlling the volume during a call
You can control the volume during a call with side volume key .
1-7 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.
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