How to end and hang up an active phone call.

Grandstream GXP 2140

To end a call using the handset, simply place it back on the phone. To end a handsfree call, press the speakerphone button again.
 

Grandstream GXV 3275

To end a call using the handset, simply place it back on the phone. To end a handsfree call, press the end button on the display.
 

Grandstream GXV3275 Video