setting message type information of the connection request message, as a connection request message comprising {HEAD ~ the data} to be transmitted through the SIP, by {TAIL ~ the UE} 
to be transmitted by
setting message type information of the connection request message , as a connection request message comprising { HEAD ~ the data } to be transmitted through the SIP , by { TAIL ~ the UE }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL