IOGear GBE201 - Manual (Page 23)

Ending a call
If you wish to terminate a call while using the Bluetooth headset,
please do the following:
1.
Press the multi-function button once to hang up
2. You should now hear a beep sound from the headset indicating
call has terminated
Alternatively, you can terminate the phone call in the usual way using
your cell phone’s keypads.
How to Use Headset
19