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