Api\ServiceType\ApiService::Permissions_Authenticate PHP Method

    public function Permissions_Authenticate($login, $password)
    {
        try {
            $this->setResult(self::getSoapClient()->__call('Permissions.Authenticate', array($login, $password)));
            return $this->getResult();
        } catch (\SoapFault $soapFault) {
            $this->saveLastError(__METHOD__, $soapFault);
            return false;
        }
    }