An autodialing circuit is coupled to and responsive to the receiving circuit and {TAIL ~ a telephone line} for dialing a telephone number responsive to {HEAD ~ the doorbell signal} 
An autodialing circuit is coupled to and responsive to the receiving circuit and { TAIL ~ a telephone line } for dialing a telephone number responsive to { HEAD ~ the doorbell signal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD