/**
* {@inheritDoc}
*/
public function send(SmsInterface $sms, GatewayInterface $gateway)
{
// Get the gateway configurations
$configs = $gateway->getConfigs();
// Create a new socket transport
$transport = new \SocketTransport(array($gateway->getHost()), $gateway->getPort(), $configs['persistent']);
$transport->setSendTimeout($configs['send_timeout']);
$transport->setRecvTimeout($configs['receive_timeout']);
$transport->debug = $configs['debug'];
// Create a new SMPP client
$smpp = new \SmppClient($transport);
$smpp->debug = $configs['debug'];
// Open the connection
$transport->open();
$smpp->bindTransmitter($gateway->getUsername(), $gateway->getPassword());
// Configure a sender, recipient and message
$sender = new \SmppAddress($sms->getSender(), $configs['sender']['ton'], $configs['sender']['npi']);
$recipient = new \SmppAddress($sms->getRecipient(), $configs['recipient']['ton'], $configs['recipient']['npi']);
$message = \GsmEncoder::utf8_to_gsm0338($sms->getMessage());
// Send an SMS and close the connection
$messageId = $smpp->sendSMS($sender, $recipient, $message);
$smpp->close();
return $messageId;
}