The method of the present invention includes the steps of monitoring {HEAD ~ a subscriber unit} which serves to initiate {TAIL ~ the desired service}, and detecting when the subscriber elects to obtain the predetermined service from one of the service providers 
The method of the present invention includes the steps of monitoring { HEAD ~ a subscriber unit } which serves to initiate { TAIL ~ the desired service } , and detecting when the subscriber elects to obtain the predetermined service from one of the service providers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH