VoIP phones and a recommendation to enable Consistent NAT
A client's new VoIP phone provider has made some recommendations to ensure good performance, including to enable Consistent NAT. I know that SonicWALL firewalls have that setting, but is there an equivalent for WatchGuard? The client has a T35 running 12.5.7 U3 Fireware.
They also recommended increasing UDP timeout to a minimum of 300 seconds. It was at the default of 30 seconds, so I used the CLI to bump the global UDP timeout to 360 seconds. I did it globally because I do not know how to apply it to a particular policy. If I understand correctly, the "Specify custom idle timeout" setting on a particular policy's Properties tab is only for the TCP timeout, correct?