See also:

Taking a phone call and declining an incoming call
To take a phone call: Press the OFF hook switch0 . To put an incoming call on hold: Press the ON hook switch briefly . To decline an incoming call: Press the ON hook switch for more than 1.5 sec ...

How to play back
Press the button and select the “BTA” (type C audio)/“BT Audio” (type D audio) mode. ...

Turning on/off the Hands-free mode
Turning on/off the Hands-free mode 1) OFF hook switch 2) ON hook switch 3) Talk switch To turn on the Hands-free mode, press the OFF hook switch . To turn off the Hands-free mode, press th ...