It is nice that VOIPo works with the customers to some extent, because officially the ATA normally has a router, and is not meant to be behind a different router.

I am guilty of preferring my own choice in router and using the PAP2T.

I do think it was smart money for VOIPo to primarily use the RT31P2 that has a built in router with 3 LAN ports. This allows an if all else fails approach that lets you continue to operate your computers while troubleshooting. A reasonable expectation for a Residential Plan.