{HEAD ~ The system} is thereby able to route {TAIL ~ calls} efficiently and to alleviate the tromboning effect that often occurs when calls are redirected from a wireless unit to a landline device 
{ HEAD ~ The system } is thereby able to route { TAIL ~ calls } efficiently and to alleviate the tromboning effect that often occurs when calls are redirected from a wireless unit to a landline device
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH