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