To answer a call, press the MFB button once:
To end a call, press the MFB button once:
To reject an incoming call, press and hold the MFB button for 2 seconds:
To redial the last number on the call list, press the Vol- and Vol+ buttons simultaneously for 2 seconds:
Actions during the call
To mute the microphone, rotate the boom arm until it is in a vertical position:
To unmute the microphone, rotate the boom arm to either side until it is in a horizontal position:
To answer a new incoming call and put the current call on hold, press the MFB button twice:
To reject a new incoming call and stay on the current call, press and hold the MFB button for 2 seconds:
To answer a new incoming call and end the current call, press the MFB button once:
To switch between the current call and the call on hold (requires a call on hold), press the MFB button twice: