You can pick up calls ringing on another extension, for example when the other extension is busy or when the user is absent, when the following prerequisites for this function are met:

• It must be supported by the PBX.
  
  
• The extensions whose calls you want to pick up on your own extension must permit this function. It is possible but not required to restrict the permission for monitoring to certain users or groups of users.
  
  
• Each extension to be monitored must be programmed onto one of the freely programmable function keys with LEDs.
  
  
• If you want to see who is calling or connected to any of your monitored extensions, the function "Go to call monitor on activity" must be enabled on the phone's web interface, Advanced page, Behavior tab, Go to call-monitor on activity setting. Click on.

When these prerequisites are met, the status of the monitored extension is indicated by the LED of the function key:

• Blinking LED: Incoming call ringing. If the call is not answered, press the key to pick it up;
  
  
• LED glowing steadily: The monitored extension is busy (in call, dialing, etc.); and by the idle display showing the call-monitor state.