The CommuncationListening of the Communcation Manager can be enabled in the ingame Settings.

There the following settings are existing:
-- Enable Socket Listening (Let the CommunicationManager listen for incoming calls)
-- Passsword (Password which get used to encrypt and decrypt the messages for the openssl connection)
-- Listening port for every server (this is the port the CommunicationManager listens at)

Sample ManiaControl Implementation (for ManiaControl to ManiaControl connections)

##php code begin
	$communication = $this->maniaControl->getCommunicationManager()->createCommunication(IP/Domain, PORT, 'YOUR_PASSWORD');
	$communication->call(function($error, $data){
		var_dump($data);
	}, CommunicationMethods::GET_SERVER_CHAT);
##php code end

Sample Web Implementation (to call ManiaControl from a website)
##php code begin
	$errno = null;
	$errstr = null;
	$socket = fsockopen("xx.xxx.xx.xx", xxxxx, $errno, $errstr, 2);
	echo "ok?" . $errno . " - " . $errstr . "\n";

	$data = array("method" => "getServerChat", "data" => "");

	// Encode and Encrypt the Data
	$data = json_encode(array("method" => "getServerChat", "data" => ""));
	$data = openssl_encrypt($data, 'aes-192-cbc', 'YOUR_PASSWORD', OPENSSL_RAW_DATA, 'kZ2Kt0CzKUjN2MJX');

	// Write the Data on the Socket
	fwrite($socket, strlen($data) . "\n" . $data);


	// Read Answer Data
	$len = (int)fgets($socket);
	echo $len;
	$buff = '';
	while (!feof($socket) && strlen($buff) < $len) {
		$buff .= fgets($socket, $len - strlen($buff) + 1);
	}

	// Decrypt and Decode the Response Data
	$data = openssl_decrypt($buff, 'aes-192-cbc', 'YOUR_PASSWORD', OPENSSL_RAW_DATA, 'kZ2Kt0CzKUjN2MJX');
	echo json_decode($data);

	//Close the Socket
	fclose($socket);
##php code end