Once {HEAD ~ the call} is recognized by {TAIL ~ the BRG} as an 8xx call , the BRG will consult its stored 8xx handling criteria and terminate the call accordingly 
Once { HEAD ~ the call } is recognized by { TAIL ~ the BRG } as an 8xx call , the BRG will consult its stored 8xx handling criteria and terminate the call accordingly
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH