User's Manual

 Mute: Stop sending local voice.
 Speaker volume: Adjust speaker volume.

Hold/Retrieve/Switch: Keep the current call/Resume the kept call/Switch
between two calls.
 Contacts: Enter the contacts list
 Messaging: Enter the messaging interface.
 Conference call
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 others.
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 appear only when the ongoing call and the hang-on call coexist at the
same time.
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