On 10/05/2010 09:02 AM, Stephan Ellis wrote: > Any specific point version of 1.6.0 i should use? Or just 1.6.0? If the underlying problem is, as your switch technician suggests, lack of response to a particular SS7 message, then going back to an older version of Asterisk is not going to help. I know the author of the previous reply was trying to be helpful, but he posts the identical response to every thread where people are having issues with Asterisk and SS7... that does not mean he's actually analyzed the problem and knows that it will be resolved by using 1.6.0.x (there is no "1.6.0"). Since you've determined that the problem only occurs when your Asterisk box is placing calls to specific remote destinations through your SS7 switch, have you tried any other SS7 clients off that switch calling the same destinations? I know you've mentioned that you have an additional Asterisk box using ISDN PRI to that switch, but since that's a different protocol it's not really going to help (except to verify that your SS7 switch does have a functional audio path between it and the remote destination). Most likely the message(s) involved here are related to some sort of SS7/ISDN (or SS7/PSTN) interworking, and chan_dahdi/libss7 just haven't taken those into account yet. In order to be able to debug the issue, you're going to have to post a debug log that shows the SS7 traffic being sent and received for this failing call, so that people who understand the protocol can try to figure out what is going wrong. -- Kevin P. Fleming Digium, Inc. | Director of Software Technologies 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA skype: kpfleming | jabber: kfleming at digium.com Check us out at www.digium.com & www.asterisk.org