function chatEnableManualRouting($enable = true, $excludeServer = false, $multicall = false)
    {
        if (!is_bool($enable)) {
            throw new InvalidArgumentException('enable = ' . print_r($enable, true));
        }
        if (!is_bool($excludeServer)) {
            throw new InvalidArgumentException('excludeServer = ' . print_r($excludeServer, true));
        }

        return $this->execute(ucfirst(__FUNCTION__), array($enable, $excludeServer), $multicall);
    }