// app/AppKernel.php
class AppKernel extends Kernel
{
    public function registerBundles()
    {
        $bundles = array(
            // ...
            new NoiseLabs\Bundle\NuSOAPBundle\NoiseLabsNuSOAPBundle(),
        );
        
        // ...
    }
}

$client = new \nusoap_client('http://example.com/url/to/some/valid.wsdl', true);

$response = $client->call('someSOAPMethod', array('param1'=>'foo', 'param2'=>'bar'));