The communications network 16 is preferably a conventional telecommunications network including {HEAD ~ a plurality} of {TAIL ~ switches} and local exchange carriers that carry Internet traffic 
of
The communications network 16 is preferably a conventional telecommunications network including { HEAD ~ a plurality } of { TAIL ~ switches } and local exchange carriers that carry Internet traffic
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH