Hi all,

Here is a graphical diagram of what I am trying to do:

<SIP> <---> <GW/NAT/*> <--IAX--> <*> <--TDM400P--> <Analog Phone>

So I have incoming SIP calls go to the * on the GW, which I then want to forward over IAX to the second * box behind the NAT GW. If I was to place a call on the second * box, it should then forward to the * on the NAT GW and place the call to the SIP destination. Thus, this should create a 2 way communication between the * box BEHIND the NAT GW, and end point.

Now, the REASON I am doing this is because the TDM400P card I have is an older version, and has a lot of noise on the GW box, but is eliminated when using it in the box behind the GW. I realize I can just get this card replaced, but I am just using it on loan from the school, so until January comes around, I can't send it back, so this is my work around until then.

I have built the IAX registrations between the boxes, so they register with each other. What I am trying to figure out is how to use my existing dial plan which worked on the gateway. This is going to work with FWD, so I should be able to receive calls on my 18924 number, and the 55555 welcome line as well.

Couple of questions:

1) Should the GW or the second * box register with FWD?
2) Am I basically going to be using a blank configuration on the GW box, and having the second * box with all the fancy dial plan stuff, or the other way around?
3) Am I looking at using the switch => command? If so, an example would be fantastic, I've looked around on the digum list with google, but can't seem to find anything, perhaps I'm just using the wrong search words?


Also, does my logic seem to make sense? Again, I would have just loved to put the TDM400P card in the GW machine, but unfortunately the dd line to make the CPU go to 100% just isn't very practical since I would like to use it for more than just *.

If I can think if anything else, I will reply to this post.

Thanks in advance for any help or direction,
Leif Madsen.

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