David - 2011-12-12

I'm trying to connect an app in internet (client) with another in my local network (server). I open the 8015 port and I can catch the wsdl, but when I call the server only return the next:

2011-12-12 14:16:24.081611 nusoap_client: Error: HTTP Error: Unsupported HTTP response status 404 Not Found (soapclient->response has contents of the response)

This is my code:

$clienteWS = new nusoap_client('http://mydomain.com:8015/webservices/WS.asmx?wsdl',true);
$err = $clienteWS->getError();
if ($err) {echo '<p><b>Constructor error: ' . $err . '</b></p>';}
$param = array( 'param'=>date('Y-m-d H:i:s'));
$resultado = $clienteWS->call('prueba', $param, $namespace, $soapaction);

Any idea???