Depending on the location and telephone number of the calling party, the answering machine lowers {HEAD ~ user cost} by limiting the allowable time for a response message and responding to {TAIL ~ incoming calls} in a more efficient manner 
by responding to
Depending on the location and telephone number of the calling party , the answering machine lowers { HEAD ~ user cost } by limiting the allowable time for a response message and responding to { TAIL ~ incoming calls } in a more efficient manner
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH