{HEAD ~ The radio communication unit} then receives information regarding {TAIL ~ availability} of the specified radio communication services 
{ HEAD ~ The radio communication unit } then receives information regarding { TAIL ~ availability } of the specified radio communication services
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH