On Thu, Dec 20, 2012 at 2:22 AM, Steve Davies <davies...@gmail.com> wrote:
> On 19 December 2012 21:54, Christopher Harrington <ch...@acsdi.com> wrote: > >> You probably already know this, but 1.4x is very old (released in 2006) >> and is officially end-of-life. >> >> https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions >> >> You might get more help or better behavior by updating to a newer more >> current version of Asterisk, such as 1.8 which will be receiving bug fixes >> into October 2014. >> >> >> On Wed, Dec 19, 2012 at 3:47 PM, James Lamanna <jlama...@gmail.com>wrote: >> >>> Hi, >>> I have a PSTN Asterisk box that's connected to other dialplan PBXes >>> through IAX2. >>> >>> Recently this box was upgraded to 1.4.44 with the latest DAHDI version. >>> I've noticed that if one of the dialplan PBXes calls Congestion(), the PRI >>> will return ISDN code 34 (as its supposed to do). >>> However, the issue is that subsequent calls into that PRI channel are >>> immediately responded by a Code 44 (channel not available) even though >>> there is no live call on the channel. >>> >>> Has anyone else experienced this behavior? Its a pretty crippling >>> behavior since all of our channels eventually become unresponsive until a >>> 'dahdi restart' is issued. >>> >>> Thanks. >>> >>> -- James >>> >> > I believe that what you are describing is a very old bug, which is fixed > somewhere in the 1.8 timeline when the interface between DAHDI and Asterisk > is changed slightly. I encountered the same issue some time ago. I do not > recall the exact conditions under which the issue happens, but I believe it > is the attempt to cancel an unanswered inbound call with a specific subset > of cause codes. > > If you are using an older Asterisk version, the only workaround is to use > Playtones + Hangup() instead of sending the Congestion() or Busy() cause > codes. > > Regards, > Steve > > Thanks Steve. It must have been introduced between DAHDI 2.4.0 and 2.6.1 or between Asterisk 1.4.35 and 1.4.44. I had a box running Asterisk 1.4.35 + DAHDI 2.4.0 and I never had any issues. -- James
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