TTS (Text-to-Speech) API Web Service

<?php
ini_set("max_execution_time", 3600);

//require_once('intscripttopo.php');
$datahoje = date('Y-m-d');

require_once('dist/nusoap/lib/nusoap.php');
//require_once('lib/nusoap.php');
$proxyhost = isset($_POST['proxyhost']) ? $_POST['proxyhost'] : '';
$proxyport = isset($_POST['proxyport']) ? $_POST['proxyport'] : '';
$proxyusername = isset($_POST['proxyusername']) ? $_POST['proxyusername'] : '';
$proxypassword = isset($_POST['proxypassword']) ? $_POST['proxypassword'] : '';
// WEBSERVICE VOZ
$client = new nusoap_client('http://www.pw-api.com/v_3_00/voice/service.asmx?wsdl', true, $proxyhost, $proxyport, $proxyusername, $proxypassword);

// WEBSERVICE SMS
//$client = new nusoap_client('http://www.pw-api.com/v_3_00/sms/service.asmx?wsdl', true, $proxyhost, $proxyport, $proxyusername, $proxypassword);

$err = $client->getError();
if ($err) {
	echo '<h2>Erro do construtor</h2><pre>' . $err . '</pre>';
}


//
	$param = array(
		'Credencial'   		=> 'XXXXXXXXXXUUUUUUUUUUTTTTTTTTTTRRRRRRRRRR',
        'Token'      		=> 'sertgu',
        'Principal_User'	=> 'XX',
		'Aux_User'			=> '123456',
		'Mobile'			=> '+55(21)999999999',
		'Voice'				=> 'V-PTBR-M1',
		'Message'			=> 'Oi, esta é uma mensagem de Voz.'
		
	);

	$result = $client->call('MPG_SendandFollowUp_Voice', array('parameters' => $param), '', '', false, true);
	utf8_encode($result);
	echo $result['MPG_SendandFollowUp_VoiceResult']; // 000:MPG000117875432
	$aux = explode(':', $result['MPG_SendandFollowUp_VoiceResult']);
	$codstatus	= $aux[0];
	$codigo		= $aux[1];

	


#############################################
########## ANALISE DE ERRO E DEBUG ##########
#############################################	

// Check for a fault
if ($client->fault) {
	echo '<h2>Fault</h2><pre>';
	print_r($result);
	echo '</pre>';
} else {
	// Verificando Erros
	$err = $client->getError();
	if ($err) {
		// Apresentando Erros
		echo '<h2>Error</h2><pre>' . $err . '</pre>';
	} else {
		// Apresentando Resultado
		echo '<h2>Result</h2><pre>';
		print_r($result);
		echo '</pre>';
	}
}
echo '<h2>Request</h2><pre>' . htmlspecialchars($client->request, ENT_QUOTES) . '</pre>';
echo '<h2>Response</h2><pre>' . htmlspecialchars($client->response, ENT_QUOTES) . '</pre>';
echo '<h2>Debug</h2><pre>' . htmlspecialchars($client->debug_str, ENT_QUOTES) . '</pre>';
?>