Zap X100P PSTN outgoing calls doesn't have any audio

Hi, I just setup a new asterisk server and have it correctly configured thru FWD using SIP and can make and recieve call on that trunk with out any issues. I also have an IPKall number which forwards call to FWD and gets to my asterisk server with no issues.

I then added an X100P to the server and for the time being connected to my vialtalk line coming out of PAP2. This is for testing only as I would be moving my server and will be connecting to a real PSTN line later.

As of now, when I make outgoing calls, I see the other end ringing and then complete silence. On the other end, the phone rings and gets picks up but I don’t hear any sound.

Any idea what might be wrong?