Mute or unmute
the active call
Tap to show a keypad in order
to enter numbers, for example,
when choosing menu items
such as “enter 1 for customer
support”.
Enable or disable
speakerphone for the active
call
Hold or release hold on
the active call.
Place a second
phone call, or
transfer a call
Tap the Android Menu button to
start/stop recording.
Add video to an audio call.
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