anchor.diff:  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   %%% @doc This {@link //stdlib/gen_server. gen_server} behaviour callback
   %%% 	module receives {@link //diameter. diameter} messages on a port assigned
  -%%% 	for authentication in the {@link //ocs. ocs} application.
  -%%%
  -%%% @reference <a href="https://tools.ietf.org/pdf/rfc7155.pdf">
  -%%% 	RFC6733 - DIAMETER Network Access Server Application</a>
  +%%% 	for accounting in the {@link //ocs. ocs} application.
  +%%%
  +%%% @reference <a href="https://tools.ietf.org/pdf/rfc4006.pdf">
  +%%% 	RFC4006 - DIAMETER Credit-Control Application </a>
   %%%
   -module(ocs_diameter_cc_application_cb).
   -copyright('Copyright (c) 2016 - 2017 SigScale Global Inc.').
  
positive.code: 			| {protocol_error, 3000..3999},
  		Opt :: diameter:call_opt(),
  		PostF :: diameter:evaluable().
  %% @doc Locate ocs_diameter_acct_port_server process and sent it
  %% peer's capabilities and diameter request.
  send_to_port_server(Svc, Caps, Request) ->
  	[Info] = diameter:service_info(Svc, transport),
  
negative.code: 
  -include_lib("diameter/include/diameter.hrl").
  -include_lib("diameter/include/diameter_gen_base_rfc6733.hrl").
  -include("../include/diameter_gen_cc_application_rfc4006.hrl").
  -include("ocs.hrl").
  
  