Hi. I've noticed that outgoing call channels in freetdm/ftmod_libpri are not selected exclusively in Q.931 SETUP messages. Channel identification "exclusive" bit is 0 so it only means "preferred". In some cases freeswitch selected channel which was not ready for dialing yet and ISDN operator answered with another channel in PROGRESS message. So actual call state messages were passed trough another channel and it resulted with lots of VETO and consecutive RESET messages, because of channel state confusion in FreeSwitch. I think that it's better to force channel selection and in some cases choose wrong channel and get info about it. It's definitely better, then choose something, assume that it is correct although actual communication is done on another channel and such calls are "doomed"... I've attached patch, in which we force selection of ISDN channel. Maybe better solution will be some configuration variable, which will control this behaviour. Consider. Does anybody have similar experience and if so, how do you deal with it? Or am I mistaken in some of my conclusions? -- Michal Zubac ComGate Interactive s.r.o. Prague Marina Office Center Jankovcova 1596/14a 17000 Praha 7, Czech Republic