Controlling Calls with Electronic Hookswitch 
After you have followed the procedures for connecting your headset and enabled EHS, you can use the controls on 
your headset to answer, mute, and end calls. If supported on your headset, you can also place calls on hold. See 
your headset's user documentation for information on controlling calls from your headset. 
When you are in an active call and you receive an incoming call, you cannot use the hookswitch control on your 
headset to place the active call on hold and answer the incoming call. Pressing the hookswitch control on the 
headset ends the active call and answers the incoming call. To place the existing call on hold and answer the 
incoming call, answer the call on your phone. 
 
Disconnect Your Headset 
If you want to disconnect or change your headset, you need to properly detach your headset from your phone. 
1. 
Navigate to Settings > Basic > Preferences > Headset > Hookswitch Mode. 
2. 
Select Regular Mode. 
3. 
Remove the EHS adapter from the serial port on the back of the phone.