I notice to post, having the same problem (probably from the same person) I resently also switched from i4l to other (first tried capi but that didn't work out) Now I installed zaphfc and it works (I can call and I can receive calls) but from the moment I load zaptel (modprobe zaptel) I get al lot of empty HDLC frame or bad CRC received messages (and the never stop). I also noticed that sometimes asterisk doesn't pick up (doesn't notice there is being called) When I do have a call I frequently (every 2 -3 seconds) hear a crack on both sides (only when connected to via isdn) I tryied chaning the signalling thing, didn't change anything, but I think it is not related as I get the messages whereter or not asterisk is running (they start appearing as soon as I load zaptel) Anybody any idea? Bart Seresia -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20050615/0749e558/attachment.htm