The invention also includes a communication system having a plurality of {TAIL ~ channels}, a first service that utilizes at least a first channel for {HEAD ~ transmission}, and a second service that utilizes at least a second channel for transmission 
The invention also includes a communication system having a plurality of { TAIL ~ channels } , a first service that utilizes at least a first channel for { HEAD ~ transmission } , and a second service that utilizes at least a second channel for transmission
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH