The communication system 1, wherein the operating means comprises terminating means for terminating {TAIL ~ the connected operation} of {HEAD ~ the first service} and the second service 
The communication system 1 , wherein the operating means comprises terminating means for terminating { TAIL ~ the connected operation } of { HEAD ~ the first service } and the second service
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH