Appears completely resolved! No more home-spun patches! Thanks! -K
----- Original Message ----- From: "Barry Miller" <[email protected]> To: "Asterisk Users Mailing List - Non-Commercial Discussion" <[email protected]> Sent: Thursday, January 28, 2010 10:40 PM Subject: Re: [asterisk-users] Unable to create channel of type 'DAHDI'(cause 0- Unknown) > Interesting. I had the same problem last Sept with a TDM800, DAHDI > 2.2.0.2. > > Shaun Ruffel of Digium pointed me to > https://issues.asterisk.org/file_download.php?file_id=22725&type=bug > which fixed it for me. This fix is already in 2.2.1. > > -- > Barry > > On Thu, Jan 28, 2010 at 07:30:57PM -0600, Karl Fife wrote: >> I have had the exact same problem for over a year on my server sporting >> the >> TDM800 but NOT on my server with the TE212P. Both servers run the same >> version of Linux, Asterisk and DHADI. >> >> The problem has remained consistent through all versions of DAHDI 2.0.x >> through 2.2.0.2, and every version of Asterisk which I have I've tried >> which >> includes various iterations of 1.6.0, 1.6.1, and 1.6.2. Currently >> 1.2.6.1. >> Surprisingly I also observe that I can even compile & install NEW >> versions >> of Asterisk and/or DAHDI, and NOT observe the bug provided that I do NOT >> bounce the server. >> >> A developer (not an asterisk developer) named Jim Duda posted this issue >> to >> the list back in October of 08. (Asterisk 1.6.0-beta9 & DAHDI 2.0.x >> originally for him). After what he described as considerable effort he >> found that by changing one line in chan_dahdi.c the issue appeared to be >> resolved (below). His simple patch (below) has works (for me too) as a >> stop-gap. >> >> I posted this the DEV list back January of 09, and the issue was reopened >> and then closed as 'fixed' . It would appear the issue needs to be >> re-reopened, as it's now appearing less specific to my hardware or >> configuration. >> >> https://issues.asterisk.org/view.php?id=13786 >> Duplicate issue to 13927 >> >> If I do not patch chan_dahdi (below), this is what I (still) observe: >> ONLY after a system reboot, any attempt(s) to dial from a device attached >> to >> an FXS port on my TDM800P, result in the following error : >> >> WARNING[2975]: app_dial.c:1502 dial_exec_full: Unable to create channel >> of >> type 'DAHDI' (cause 0 - Unknown) >> == Everyone is busy/congested at this time (1:0/0/1) >> >> BUT after the first INBOUND call to any FXO port on the device, the FXS >> port >> works normally until the next reboot. >> >> (Asterisk 1.6.2.1 & DAHDI 2.2.0.2 (& earlier ) Centos 2.6.18-164.11.1.el5 >> #1 >> SMP Wed Jan 20 07:39:04 EST 2010 i686 i686 i386 GNU/Linux >> >> Does anyone else observe this? Could it be specific to certain >> (mis)configurations? It's possible that others have the issue but do not >> know it. With any inbound call volume it may be nearly transparent :-) >> >> -Karl >> >> JIM's ONE-LINE FIX ---- >> On line 8730 (I think it's still on this line) of chan_dahdi.c >> replace a "return 0" with return "1". >> >> if (par.rxisoffhook) >> return 1; >> else >> - return 0; >> + return 1; >> >> >> >> ----- Original Message ----- >> From: "Walter Arguello" <[email protected]> >> To: <[email protected]> >> Sent: Thursday, January 28, 2010 6:15 PM >> Subject: [asterisk-users] Unable to create channel of type 'DAHDI' (cause >> 0- >> Unknown) >> >> >> > Hi, >> > >> > I have a tdm22b (2 fxs / 2 fxo) >> > >> > When Asterisk is just started, outbound calls routing to fxo port, do >> > not >> > working with error: >> > >> > Unable to create channel of type 'DAHDI' (cause 0 - Unknown) >> > >> > Inbound calls to fxo port work fine. >> > >> > After first inbound call, the outbound calls starts working. >> > >> > CentOS 5.4 >> > asterisk 1.6.0.21-1 >> > dahdi 2.2.1.-1 >> > >> > Can anybody help me to identify what is the possible cause of problem? >> > >> > Thanks, >> > >> > Walter. >> > >> > >> > >> > >> > >> > -- >> > _____________________________________________________________________ >> > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> > >> > asterisk-users mailing list >> > To UNSUBSCRIBE or update options visit: >> > http://lists.digium.com/mailman/listinfo/asterisk-users >> > >> >> >> -- >> _____________________________________________________________________ >> -- Bandwidth and Colocation Provided by http://www.api-digital.com -- >> >> asterisk-users mailing list >> To UNSUBSCRIBE or update options visit: >> http://lists.digium.com/mailman/listinfo/asterisk-users > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
