Chat::join

public function join($userId, $skipMessage = true, $skipRecent = false)
{
	$result = false;

	if($this->isDataLoaded() && !empty($userId))
	{
		$chat = new CIMChat($this->joinByUserId);
		$result = $chat->AddUser($this->chat['ID'], $userId, false, $skipMessage, $skipRecent);
	}

	return $result;
}