On 05/02/2014 04:34 AM, Steven Schoch wrote:
I'm using a Grandstream HT502, connected via our LAN to FreeSWITCH, and then out via Flowroute. It works sometimes. I'm not that concerned, because the high failure rate helps convince my users to use a more modern solution, like the nice Dell MFP that can scan to PDF.
You would think that someone would make a VoIP FAX machine that plugs directly into a LAN, but I haven't seen anything I'd be willing to buy.
Short summary: Even with a T.38 gateway, VoIP FAX is marginal.
Some of the big floor standing MFCs support T.38. They even support T.38 over TCP, where it is reliable even if the network is very poor. That requires an end-to-end T.38 over TCP connection, so its generally only closed user groups which can make use of it. Its very common for MFCs of all sizes to support an approximation to T.37, but its usually rather clumsy to use. A few (very few) smaller T.38 capable FAX machines have been produced. Sagem have a couple of inexpensive ones. They never seemed to catch on. Regards, Steve