anchor.diff:  
   %% @hidden
   ipdr_csv(Log, IoDevice, {Cont, [#ipdrDocWLAN{} | T]}) ->
  -	Header = [<<"Creation Time;Sequence Number;Username;">>,
  +	Header = [<<"Creation Time;Sequence Number;Username;Subscriber ID;">>,
   			<<"Accounting Session ID;User IP Address;Calling Station ID;">>,
   			<<"Called Station ID;NAS IP Address;NAS Identifier;">>,
   			<<"Class;Session Terminate Cause;Session Duration;">>,
  
positive.code: 	NewIPDR = IPDR#ipdr_wlan{username = Username},
  	ipdr_wlan1(T, radius, TimeStamp, stop, Req, Resp, Rated, NewIPDR);
  ipdr_wlan1([username | T], diameter, TimeStamp, stop,
  		#'3gpp_ro_CCR'{'Subscription-Id' = [SubscriptionID]} = Req, Resp,
  		Rated, IPDR) ->
  	case SubscriptionID of
  		#'3gpp_ro_Subscription-Id'{'Subscription-Id-Data' = Subscriber} ->
  
negative.code: 		undefined ->
  			<<>>;
  		US ->
  			US
  	end,
  	Sess = case I#ipdr_wlan.acctSessionId of
  		undefined ->
  