It is my understanding that the reason the 502 was the device of choice was for its built in router. I do not know about others experience with the built in router but I found it to be very lacking and my internet speed was poor (I mean like more than half the speed) with that thing in front of my Linksys. I am sure cost works in there too.

Personally, I would rather pay more of a activation fee (fee for the ATA lol) and have a better performing device with less problems then a less expensive device that has issues. Most people should have a router anyway. Reliability is important (fail over numbers working is very important too ).

I know VOIPo is on top of tech issues as soon as they happen and work quickly to resolve them but it does not sound like Grandstream is on the same page as VOIPo. They seem to have more of a "we will get to it when we get to it" attitude.

Just my thoughts your mileage may vary.

Thanks,