connecting said calling {TAIL ~ party} on said DID trunk line from said central office through said PBX to said {HEAD ~ voice message system} 
connecting said calling { TAIL ~ party } on said DID trunk line from said central office through said PBX to said { HEAD ~ voice message system }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD