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