Another advantage of the present invention is that {HEAD ~ a telecommunications subscriber} does not need to keep track of two different numbers and possibly need to dial {TAIL ~ two different numbers} in order to reach a subscriber on the move 
possibly need to dial
Another advantage of the present invention is that { HEAD ~ a telecommunications subscriber } does not need to keep track of two different numbers and possibly need to dial { TAIL ~ two different numbers } in order to reach a subscriber on the move
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH