[asterisk-bugs] [LibPRI 0012899]: PRI link fails dropping all the active voice channels

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=12899 
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Reported By:                Christian_Pinedo
Assigned To:                mattf
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Project:                    LibPRI
Issue ID:                   12899
Category:                   General
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.19 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-06-19 11:24 CDT
Last Modified:              2008-09-08 05:19 CDT
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Summary:                    PRI link fails dropping all the active voice
channels
Description: 
Sometimes Asterisk resets D-Channel port of the PRI interface and all the
active communications fall down. This could take down until 30 voice
channels. We cann't identify when this happens. During a week we had no
problems but other weeks we have had errors all the days and several times
a week (i.e. one day 8 times).

[Jun 19 12:29:40] WARNING[14561] chan_zap.c: No D-channels available! 
Using Primary channel 16 as D-channel anyway!

The software realeases we are using:

* Asterisk 1.4.19
* Asterisk Addons 1.4.7
* LibPRI 1.4.4
* Zaptel 1.4.10.1

We are having this problems with Telefonica, a telco company from Spain.
We have being working with its technicians and they say that is the
asterisk which resets D-Channel and not the network.

We have reproduced this problem with two different PRI cards: TE110P and 
TE2XXP.  
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 (0092165) Christian_Pinedo (reporter) - 2008-09-08 05:19
 http://bugs.digium.com/view.php?id=12899#c92165 
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Telco considered as error some frames send by Asterisk that according to
ISDN standard are well and so when a limit of errors per minute was
exceeded the network reinitialized PRI interface.

It's not an error of Asterisk. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-09-08 05:19 Christian_PinedoNote Added: 0092165                          
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