Upon receipt of response SIP data for the SIP data, {HEAD ~ the response SIP data} is sent through {TAIL ~ the SIP RAB} 
is sent through
Upon receipt of response SIP data for the SIP data , { HEAD ~ the response SIP data } is sent through { TAIL ~ the SIP RAB }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL