How do I disable SIP ALG on my router/combo device?

If your firewall/router does not have an option to disable SIP ALG, that does not mean that it is not running; it just means you cannot disable it. The only way to truly confirm this would be to verify with the vendor if a SIP application is running on the device and how (and if) that can be disabled. If it is running and cannot be disabled, that device should not be used with GoToConnect.