anchor.diff:  send_bad_answer(Config) ->
       Req = ['ACR', {'Accounting-Record-Type', ?EVENT_RECORD},
                     {'Accounting-Record-Number', 2}],
  -    {error, timeout} = call(Config, Req).
  +    {timeout, _} = call(Config, Req).
   
   %% Send an ACR that the server callback answers explicitly with a
   %% protocol error.
  
positive.code: %% Send an STR that the server ignores.
  send_noreply(Config) ->
      Req = ['STR', {'Termination-Cause', ?BAD_ANSWER}],
      {error, timeout} = call(Config, Req).
  
  %% Send an unsupported command and expect 3001.
  send_unsupported(Config) ->
  
negative.code:     diameter:call(?CLIENT,
                    dict(Req, Dict0),
                    msg(Req, ReqEncoding, Dict0),
                    [{extra, [{Name, Group}, now()]} | Opts]).
  
  origin({A,C}) ->
      2*codec(A) + container(C);
  