How to interconnect Vicidial with another FreePBX via IAX2

Hello everybody,
I'm trying to interconnect my Vicidialnow box with our PBX (Elastix-FreePBX), this way I can place Vicidial calls through our PBX.
I'v read a lot about interconnecting 2 FreePBX box, but there is no success with this
Does anyone can help me?
I'm trying to interconnect my Vicidialnow box with our PBX (Elastix-FreePBX), this way I can place Vicidial calls through our PBX.
I'v read a lot about interconnecting 2 FreePBX box, but there is no success with this

Does anyone can help me?