Hello Alex, The issue is when trying FAX from PSTn to endpoint behind NAT...regarding VOice it's OK Regards On Fri, Mar 20, 2009 at 2:41 AM, Alex Balashov &lt;abalashov(a)evaristesys.com <mailto:abalashov@evaristesys.com>> wrote: What about voice media? michel freiha wrote: Dear All, I'm trying to send FAX using T38...Everything looks fine when using endpoints with real IP...As soon as I use endpoint behind NAT everything looks not working Any clue? Regards ------------------------------------------------------------------------ _______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org <mailto:Users@lists.kamailio.org> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users -- Alex Balashov Evariste Systems Web : http://www.evaristesys.com/ Tel : (+1) (678) 954-0670 Direct : (+1) (678) 954-0671 Mobile : (+1) (678) 237-1775 ------------------------------------------------------------------------ _______________________________________________ Kamailio (OpenSER) - Users mailing list Users(a)lists.kamailio.org http://lists.kamailio.org/cgi-bin/mailman/listinfo/users http://lists.openser-project.org/cgi-bin/mailman/listinfo/users