to avoid misoperations. In this case, you are only allowed to dial emergency
numbers.
Lock the keypad
In idle mode, hold
Unlock the keypad
When the keypad is locked, firstly press Unlock and then
the keypad.
11.3 Earphone
Please follow the steps below to use the earphone:
11.3.1 PTT Operations with Earphone
During PTT calls, you could use the earphone to take or release the floor.
Hold PTT key on your earphone, start talking after hearing a beep sound,
and release PTT key to let others speak after finishing talk.
11.3.2 Receive or End Normal Calls with Earphone
With PTT key on your earphone, you could receive or end a normal call.
When there is an incoming call, you could receive it by holding PTT key on
your earphone for about 0.5 second. When you are already in a call, you
could use PTT key on the earphone to end the call.
Key.
key to unlock
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