Hi people! I am asking the developers of freeswitch directly this question, because I am not capable of answering this question myself as well on the freeswitch-user Mailinglist nobody could answer me this question. I have FS with hylafax running with 2 virtual modems for receiving and sending faxes which always fail through the VoIP Gateway which has T.38 support. Eversince I want to send a fax, the communication from the side of freeswitch was canceled. Now the question: Has the Freeswitch SpanDSP T.38 integration for Hylafax been fully developed, and been tested successfully somewhere else or is it just a dialplan problem on my side?! If it's this case, I would otherwise hire somebody to workout the dialplan routines for me. For an answer I would kindly thank you Tamer Higazi