The built-in microphone in IGX-450S allows you to answer and end calls.
Please use the chart below to execute your desired function.
Functions
IGX-450S Status
Operation
Cancel a call
Calling
Short press MFB once
Answer a call
Incoming ringing
Short press MFB once
Reject a call
Incoming ringing
Long press MFB about
2 seconds until you
hear a tone
End a call
During a call
Short press MFB once
Redial last number
Standby mode
(connected device)
Double click MFB
Call transfer(headset
to phone)
During a call
Press and hold MFB for
2 seconds
Call transfer(phone
to headset)
During a call
Press and hold MFB for
2 seconds
Microphone mute
During a call
Double click MFB
Cancel mute
During a call
Double click MFB
Hands Free Function