We are on 3CX Enterprise version 12 service pack 6.2. When we first implemented version 12 in September 2014, I had tested the Fax server with no issues. Now I am trying to set up a DID to fax to email and it just hangs up immediately. The same DID will work fine if sent to an extension, so I know the DID is working. Our voip provider is ThinkTel, and we have physical fax machines working over Voip through Patton Gateways with no issue. Any reason why the Fax service would be rejecting the call? Things to check? No errors in the logs and I have restarted the Fax service several times and the entire 3CX services once. Thanks.