[Asterisk-Users] PRI dropped calls w/ asterisk dropped betweenpstn & norstar

[Kris Boutilier]

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com]On Behalf Of Gary Reuter
> Sent: Thursday, August 11, 2005 12:59 PM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] PRI dropped calls w/ asterisk dropped
> betweenpstn & norstar
> 
> 
> I poured over my logs most of the morning.  I'm fairly convinced at
> this point the disconnect is coming from the Norstar 10 seconds after
> the call was initiated.  This points to the 'T310' timer, similar to
> what is described here:
> http://www.cisco.com/en/US/tech/tk652/tk701/technologies_tech_
> note09186a0080094487.shtml
> for the Cisco CallManager.
> When comparing the log from a successful call to a failed call, I
> noticed Asterisk was not passing back call-progress from the PSTN-span
> to the PBX-span.

http://bugs.digium.com/view.php?id=4468 may have what you're looking for. If not, it sounds like a very similar problem. Likely you can work around it by issuing an Answer() to the Norstar before dialing out. That will satisfy the Norstars ISDN timers. Also, try enabling extended results on the Norstar - you should see a 'recov time exp' error message displayed on the originating set.

Hope that helps.

Kris Boutilier
Information Services Coordinator
Sunshine Coast Regional District