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Hold
Single
Call
Hold the current call.
Call History
View call logs of master or slave SIM card.
End
Single
Call
End the current call.
End All Calls
End all the calls.
New Call
Add a new call and talk with more than one person
at a time.
Phone book
Use
Phone book
to search for numbers.
Message
Read/write a message during a call.
Switch to
Video Call
You can switch to video call.
Sound
Recorder
Record the call.
Background
Sound
The phone adds an additional sound of your
choice in the conversation.
DTMF
You can set it on/off.