anchor.diff:  
   -define(MGC_START(Pid, Mid, ET, Conf, Verb), 
   	megaco_test_mgc:start(Pid, Mid, ET, Conf, Verb)).
  +-define(MGC_START(Pid, ET, Conf), 
  +        ?MGC_START(Pid, {deviceName, "ctrl"}, ET, Conf, ?MGC_VERBOSITY)).
  +-define(MGC_START(Pid, ET),
  +        ?MGC_START(Pid, ET, [])).
   -define(MGC_STOP(Pid), megaco_test_mgc:stop(Pid)).
   -define(MGC_GET_STATS(Pid, No), megaco_test_mgc:get_stats(Pid, No)).
   -define(MGC_RESET_STATS(Pid),   megaco_test_mgc:reset_stats(Pid)).
  
positive.code:     %% Start the MGC and MGs
      i("[MGC] start"),    
      ET = [{text,tcp}, {text,udp}, {binary,tcp}, {binary,udp}],
      {ok, Mgc} = 
  	?MGC_START(MgcNode, {deviceName, "ctrl"}, ET, [], ?MGC_VERBOSITY),
  
      i("[MG] start"),    
      MgMid = {deviceName, "mg"},
      MgConfig = [],
      {ok, Mg} = ?MG_START(MgNode, MgMid, text, tcp, MgConfig, ?MG_VERBOSITY),
  
      d("MG user info: ~p", [?MG_USER_INFO(Mg, all)]),
  
  
negative.code: do_otp_5619(#{nodes := [MgcNode, MgNode]}) ->
      %% Start the MGC and MGs
      i("[MGC] start"),    
      ET = [{text, tcp}, {text, udp}, {binary, tcp}, {binary, udp}],
      {ok, Mgc} = ?MGC_START(MgcNode, ET),
  
      i("[MG] start"),    
      {ok, Mg} = ?MG_START(MgNode, text, tcp),
  
      d("MG user info: ~p", [?MG_USER_INFO(Mg, all)]),
      d("MG conn info: ~p", [?MG_CONN_INFO(Mg, all)]),
  