Help > Telephoning > Headset Call
Headset Call
*Further help under Call and transfer
Personally initiating a call when headset operation is switched off (headset LED is not shining) 
Headset
or
EHS
Personally initiating a call when headset operation is switched on (headset LED is shining green) 
Headset
or
or
OK
or
EHS
Transferring an active call to the headset 
Headset
or
EHS
Ending an active call in the headset 
Headset
or
or
EHS
Initiating the listen-in function on the receiver during a headset call 
Pick up the receiver > press Headset
Cancelling the listen-in function on the receiver during a headset call 
To do this, hang up the receiver