anchor.diff:      ok = path_server:start({outbound, registrar}, [
           registrar,
           {local_host, "localhost"},
  -        {transport, {udp, {0,0,0,0}, 5090}},
  -        {transport, {tls, {0,0,0,0}, 5091}},
  -        {transport, {sctp, {0,0,0,0}, 5090}}
  +        {transport, {udp, {0,0,0,0}, 5060}},
  +        {transport, {tls, {0,0,0,0}, 5061}}
  +        % {transport, {sctp, {0,0,0,0}, 5060}}
       ]),
   
       ok = sipapp_endpoint:start({outbound, ua1}, [
           {from, "sip:ua1@nksip"},
           % {route, "<sip:127.0.0.1;lr>"},
           {local_host, "127.0.0.1"},
  -        {transport, {udp, {0,0,0,0}, 0}},
  -        {transport, {tls, {0,0,0,0}, 0}},
  -        {transport, {sctp, {0,0,0,0}, 0}}
  +        {transport, {udp, {0,0,0,0}, 5070}},
  +        {transport, {tls, {0,0,0,0}, 5071}}
  +        % {transport, {sctp, {0,0,0,0}, 0}}
       ]),
   
       ok = sipapp_endpoint:start({outbound, ua2}, [
           % {route, "<sip:127.0.0.1:5090;lr>"},
           {local_host, "127.0.0.1"},
  -        {transport, {udp, {0,0,0,0}, 0}},
  -        {transport, {tls, {0,0,0,0}, 0}}
  +        {transport, {udp, {0,0,0,0}, 5080}},
  +        {transport, {tls, {0,0,0,0}, 5081}}
       ]),
   
       tests_util:log(),
  
positive.code: basic() ->
      C1 = {outbound, ua1},
      C2 = {outbound, ua2},
      nksip_registrar:clear({outbound, registrar}),
      
      Ref = make_ref(),
      Self = self(),
      CB = {callback, fun ({req, R}) -> Self ! {Ref, R}; (_) -> ok end},
      % RepHd = {"Nk-Reply", base64:encode(erlang:term_to_binary({Ref, Self}))},
  
      {ok, 200, []} = nksip_uac:options(C1, "sip:127.0.0.1:5090", 
                                          [make_contact, CB, get_request]),
      receive 
          {Ref, #sipmsg{contacts=[#uri{opts=Opts1}]}} ->
              true = lists:member(<<"ob">>, Opts1)
      after 1000 ->
          error(basic)
      end,
  
      {ok, 200, []} = nksip_uac:options(C1, "sip:127.0.0.1:5090", 
                                          [make_contact, CB, get_request, 
                                           {supported, "path"}]),
      receive 
          {Ref, #sipmsg{contacts=[#uri{opts=Opts2}]}} ->
              false = lists:member(<<"ob">>, Opts2)
      after 1000 ->
          error(basic)
      end,
  
      
  
  
negative.code: %         ]
  %     }.
  
  start() ->
      tests_util:start_nksip(),
  
  