When a call is received by ICM, a pop-up is displayed showing information about the caller. This pop-up is called the Incoming Call Pop-up. The Incoming Call Pop-up's Ignore button dismisses the pop-up and ICM takes no further action in processing the call.
To dismiss the Incoming Call Pop-up and ignore the incoming call:
Click the Ignore button.
The caller will hear continuous ringing, as if you were not home.