Интеграция с собственным СМС-сервисом

$eventManager = \Bitrix\Main\EventManager::getInstance();
$eventManager->addEventHandler(
    "messageservice",
    "onGetSmsSenders",
    array(
        Bitrix\MessageService\ML\smswebcom::class,
        "onGetSmsSenders",
    )
);

<?php

namespace Bitrix\MessageService\ML;

use Bitrix\Main\Application;
use Bitrix\Main\Error;
use Bitrix\Main\Result;
use Bitrix\Main\Web\HttpClient;
use Bitrix\Main\Web\Json;
use Bitrix\Main\Loader;

use Bitrix\MessageService\Sender\Result\MessageStatus;
use Bitrix\MessageService\Sender\Result\SendMessage;

use Bitrix\MessageService;

\CModule::IncludeModule('messageservice');

class smswebcom extends \Bitrix\MessageService\Sender\Base
{
    public function getId()
    {
   return 'webcom';
    }
    public function getName()
    {
   return 'SMS-webcom';
    }
    public function getShortName()
    {
   return 'webcom.mobi';
    }
    public function getFromList()
    {
   $data = $this->client->getSenderList();
        if ($data->isSuccess()) {
            return $data->getData();
        }

        return [];
    }
    public function sendMessage(array $messageFields)
    {
   if (!$this->canUse()) {
            $result = new SendMessage();
            $result->addError(new Error('Ошибка отправки. СМС-сервис отключен'));
            return $result;
        }

        $parameters = [
            'phones' => $messageFields['MESSAGE_TO'],
            'mes' => $messageFields['MESSAGE_BODY'],
        ];

        if ($messageFields['MESSAGE_FROM']) {
            $parameters['sender'] = $messageFields['MESSAGE_FROM'];
        }

        $result = new SendMessage();
        $response = $this->client->send($parameters);

        if (!$response->isSuccess()) {
            $result->addErrors($response->getErrors());
            return $result;
        }

        return $result;
    }
    public function canUse()
    {
   return true;
    }
    public static function onGetSmsSenders()
    {
   $class = __CLASS__;
        return [new $class()];
    }
}
?>

<?php

namespace W4a\Debt;

use W4a\Debt\Entity\ConfigTable;

class Config{

    public static function getTableName() {
        return ConfigTable::getTableName();
    }

    public static function get() {
        $result = ConfigTable::getList(
            array(
                'select' => array('*')
            ));
        return $result->fetchAll();
    }
    public static function update($id) {
        if(empty($id))
            return false;
        return ConfigTable::update(
            $id,
            array(
                'NAME' => 'NAME is updated'
            ));
    }
    public static function getTest() {
        return 'W4a\Debt\Config::getTest(): entity tableName: ' . self::getTableName();
    }

}

\CModule::IncludeModule('mlsms');