Hi, I have some doubts about implementing a system FreeSwitch fax, maybe it's because I have not understood exactly how this. I have a sip proxy architecture and FreeSwitch (several servers) as gateway. +------+ +-------------+ | PROXY |------------------ | GW FreeSwitch | +------+ +-------------+ +----------+ |Mail Server | | + | | FreeSwitch | +----------+ I have read from top to bottom FreeSwitch wiki and I found a script to do it, but still I have doubts as to which there are several DID for sending and receiving, my biggest problem is the acounting, not very well if GW lodge in the application, as it can go to the proxy (acounting) to leave by the GW and what DID go between for those the proxy (no acounting, but to have control) and return to GW will be in the application that send the mail. Has anyone implemented something like this or can advise me?. My biggest question is how to make it happen always for the proxy without making a loop and fail. Thanks. Greetings