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