anchor.diff:  			'Result-Code' = ResultCode,
   			'Origin-Host' = OriginHost,
   			'Origin-Realm' = OriginRealm,
  +			'User-Name' = UserName,
   			'Auth-Application-Id' = ?S6b_APPLICATION_ID,
   			'Auth-Request-Type' = AuthRequestType},
   	ok = ocs_log:auth_log(diameter, Server, Client, Request, Answer),
   	Answer;
   response(RedirectHost,
   		#statedata{request = #'3gpp_s6b_AAR'{
  +				'User-Name' = UserName,
   				'Auth-Request-Type' = AuthRequestType} = Request,
   		session_id = SessionId,
   		server_address = ServerAddress, server_port = ServerPort,
  
positive.code: send_register(#statedata{imsi = IMSI,
  		orig_host = OriginHost, orig_realm = OriginRealm,
  		hss_host = HssHost, hss_realm = HssRealm, service = Service,
  		apn_context = _Context, apn_name = APN,
  		pgw_id = PGW, pgw_plmn = VPLMN} = _StateData) ->
  	SessionId = diameter:session_id([OriginHost]),
  	Request = #'3gpp_swx_SAR'{'Session-Id' = SessionId,
  
negative.code: %% @hidden
  response(ResultCode = _Arg,
  		#statedata{request = #'3gpp_s6b_AAR'{
  				'User-Name' = UserName,
  				'Auth-Request-Type' = AuthRequestType} = Request,
  		session_id = SessionId,
  		server_address = ServerAddress, server_port = ServerPort,
  