I have the exact same problem on a normal ISDN2 BRI line. I solved it by having my Telco put layer 1 to permanent.
Best regards, Henrik Woffinden Alberto Pastore wrote: > asterisk ha scritto: >> On most traditional pabx's it's possible to set layer 1 to permanent or >> call. It sounds like your system is configured for permanent and your >> lines >> to call. How you would set this on asterisk I have no idea. >> >> fadge >> >> > The question is: is it possible I am the only one with such > problems on all asterisk boxes on different sites and > different ISDN lines? I've googled around on many forums > but no one seems to have this one. > > The old replaced PBXs had layer 1 set for call, as you say, > and they showed no problems at all. > > With asterisk as a PBX, every 2-3 hours, you cannot dial out > for 5 to 15 minutes then everything gets back to normal > (no idea about what triggers the return to working state). >> -----Original Message----- >> From: [EMAIL PROTECTED] >> [mailto:[EMAIL PROTECTED] On Behalf Of Alberto >> Pastore >> Sent: 16 October 2006 17:26 >> To: [email protected] >> Subject: [asterisk-users] ZapHFC & quadBRI D-Channel going down randomly >> >> Hi. >> >> I'm running some asterisk boxes on different sites, >> some equipped with a couple of ZapHFC cards, others with >> Junghanns quadBRI cards. >> >> All boxes were compiled with Asterisk 1.2.10 (libpri 1.2.3 zaptel 1.2.6) >> and bristuff 0.3.0 pre 1s, distribution is Fedora Core 4 with >> kernel 2.6.17.3 >> >> The cards are connected to Telecom Italia's NT1/NT1+ S/T lines; >> some of them are point-to-point, others are point-to-multipoint. >> >> I keep getting always the same problem: after some hours of regular >> working, some boxes report the usual message >> >> >> Primary D-Channel on span <n> down >> >> >> (where <n> is different every time, depending on the number of >> active bri spans) >> >> I've read on previous postings that having layer 1 down on ptmp >> spans is normal. >> >> However after getting a down message (on ptp spans too!) I'm no >> more able to place outgoing calls on that span, until >> I restart asterisk & zaptel drivers. >> >> Sometimes, they get back working by themselves (with the related >> "span up" notification) after a random time period. >> >> During the "down" period, incoming calls are regularly served. >> However these calls do not change the status of the span, i.e. >> as soon as the calls are hung up, the span gets down again. >> >> I've tried to capture the dialog between the card and NT1 equipment, >> and during the "down" state, I got this repeated over and over: >> >> >> Sending Set Asynchronous Balanced Mode Extended >> [ 00 8b 7f ] >> Unnumbered frame: >> SAPI: 00 C/R: 0 EA: 0 >> TEI: 069 EA: 1 >> M3: 3 P/F: 1 M2: 3 11: 3 [ SABME (set asynchronous balanced >> mode extended) ] >> == Primary D-Channel on span 1 down >> >> >> In zapata.conf I'm pretty sure I've always set the correct signalling >> settings >> (switchtype = euroisdn, signalling = bri_cpe_ptmp or bri_cpe >> depending on the case) >> >> In /etc/zaptel.conf, I've tried many combinations with no difference; >> my current >> settings are like this: >> >> span=1,1,0,ccs,ami >> bchan=1-2 >> dchan=3 >> >> span=2,1,0,ccs,ami >> bchan=4-5 >> dchan=6 >> >> etc.... >> >> >> Any clue? >> >> Thanks, >> Alberto >> >> -- >> Alberto Pastore >> B-Press Srl - Gruppo MSoft >> P.IVA 01697420030 >> P.le Lombardia, 4 - 28100 Novara - Italy >> Tel. 0321-499508 Fax 0321-492974 >> http://www.msoft.it >> >> _______________________________________________ >> --Bandwidth and Colocation provided by Easynews.com -- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> >> >> _______________________________________________ >> --Bandwidth and Colocation provided by Easynews.com -- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users >> > > _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
