> So, with this rules, the ATA receive calls, and I speak and my contrapart > listen me, but I can't hear him. > > Any idea? Anybody can talk on VoIP behind NAT?
I've had the same problem myself. My pf.conf was "just" like yours, but I had to configure my Sipura-adaptor right. In my case, this was "RTP Port Min" and "RTP Port Max". I don't know which ports your voip-provider uses, so that part you have to find out yourself. Also, remember to try forwarding the needed ports to your adaptor-ip. Also set, if possible, the official i-net ip on your adaptor. On my Sipura this is called "External IP". Other than that, i'm out of ideas for your problem...
