LG Motion 4G MS770 Owner's Manual page 66

Calls
64
To mute the microphone during a call
Touch the Mute Key
The Mute Key
The Mute icon will appear in the Status Bar to remind you that the
microphone is turned off.
When viewing the in-call screen, you can unmute the microphone by
touching the Mute Key
The microphone is unmuted automatically when the call ends.
To turn the speakerphone on or off
Touch the Speaker Key
The Speaker Key
The Speaker icon will appear in the Status Bar and the sound from
your call is played through the phone's speaker.
When viewing the in-call screen, you can turn the speakerphone off
by touching the Speaker Key
The speaker is turned off automatically when the call ends.
WARNING!
To avoid damage to your hearing, do not hold the phone against your ear when the
speakerphone is turned on.
To switch between a Bluetooth headset and the phone
When a Bluetooth headset is paired and connected to your phone, you can
conduct calls on the headset for hands-free conversation. During a call, you
can opt to use the Bluetooth headset or just the phone.
When using the Bluetooth headset during a call, the Ongoing Call notification
icon is blue in the Status Bar (the icon is green when using the phone).
Touch the Bluetooth Key
the phone, or vice versa.
.
lights up to indicate that the microphone is muted.
again.
.
lights up to indicate that the speakerphone is on.
again.
to switch the call from the headset to