CControllerClientRequestTo::Send

public function Send($url = "", $page = "/bitrix/admin/controller_ws.php")
{
	$this->Sign();
	$oResponsePacket = parent::Send(COption::GetOptionString("main", "controller_url", ""), $page);
	if($oResponsePacket === false)
		return false;

	$oResponse = new CControllerClientResponseFrom($oResponsePacket);
	return $oResponse;
}