Quote Originally Posted by Russell View Post
I can reverse the question ... I've had several VoIP providers and have never had to use port forwarding with my ancient router. Recently, I've started having a variety of issues and have started experimenting with port forwarding. So I guess, my question would be why my router works perfectly well with other providers but appears to have an issue with VOIPo.
Perhaps because those other providers proxy their own audio. The explanation I gave above links the problem to both the router AND the provider.