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You can do the following operations in the call menu:
Hold/ Retrieve
Keep the current call/Resume the kept call.
Swap
Switch between the current call and the kept call.
Names
Display information in the
Names
.
Speaker Volume
Adjust earpiece volume.
Mute
Don’t send local voice.
DTMF On/Off
Enable or disable sending DTMF tone.
Multiparty
¾
Join All
Calls
Add the current call to Multiparty.
¾
Hold All Calls
Hang on all calls.
¾
Private
Converse with one side privately and keep the session with the other
one.
¾
Exclude
Keep one call from Multiparty.
¾
End All Calls
End up the current call and the hang-on calls.
Note
: Some menu items can only appear in special cases. Menu items such as
Swap
will