Quote Originally Posted by caseydoug View Post
Tim, what about Brian's question regarding other devices that need specific ports forwarded? Do you agree that it's OK to give those devices the ports they need, but then to forward to VOIPo as many other ports in that range as possible? The way I figure it, it's a question of probabilities. There is only a small chance that any particular port in that range will be needed by VOIPo (except, of course, the local port used for SIP signaling), so the more ports you can forward, the lower the probability that the audio will be blocked or get lost.
That should be fine to forward ports you use.

I guess the best way to explain it is that while it's true the ATA and router can be setup to communicate on certain ports, if an audio stream comes into your IP on one of the ports we use and the router doesn't know what it is or where it goes, it wouldn't know to get it to the ATA in the first place so the ports the ATA use are not really even in the picture. With the forwarding it just directs all the traffic in those port ranges to the ATA regardless.

This setup is a little different since we don't handle audio. Some providers proxy 100% of the audio through their systems so it comes from the same IPs the router already knows are communicating with the ATA.