As another example, the UE 501 can use only {HEAD ~ the SIP data indicator}, omitting {TAIL ~ the SIP data packet length information} 
omitting
As another example , the UE 501 can use only { HEAD ~ the SIP data indicator } , omitting { TAIL ~ the SIP data packet length information }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL