LG G5220C - Manuel (Page 199)

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.
1-8 Switching DTMF Tones on During a Call
To turn DTMF tones on during a call, for example, to allow your
handset to make use of an automated switchboard, select the
[Options] key, then DTMF On. DTMF tones can be turned off the
same way.
1-9 Calling up the messages or SIM Tool Kit
The Messages and SIM Tool kit main menu options can be reached
from the in-call menu by selecting the [Options] key, then Messages
or SIM Tool Kit (Screen name depends on the network operator’s
SIM). SIM Tool kit menu is shown only when SIM in the handset
supports SIM Tool kit service.
ENGLISH
92
In call Menu
Additional Functions