[asterisk-bugs] [Asterisk 0014843]: 1 in 3 incoming zap PRI calls do no hear audio (are not bridged) when call is answered with agi script

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14843 
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Reported By:                aragon
Assigned To:                
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Project:                    Asterisk
Issue ID:                   14843
Category:                   Resources/res_agi
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.24 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-04-07 08:12 CDT
Last Modified:              2009-04-27 12:30 CDT
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Summary:                    1 in 3 incoming zap PRI calls do no hear audio (are
not bridged) when call is answered with agi script
Description: 
Incoming zap PRI call answers with DNIS and agi script
Some calls are answered properly with audio (bridged)
Sometimes caller hears no audio (not bridged)
Roughly 1 in 3 callers hears no audio.
No relation found to specific B channel

I'm opening as major because lots of calls are not being bridged.

Started with Asterisk 1.4.20 problem still in 1.4.24.1

zaptel-1.4.12
asterisk-1.4.24.1

The last line in the CLI keeps repeating until the caller hangs up

[Apr 6 19:35:18] NOTICE[26970]: utils.c:938 ast_carefulwrite: Timed out
trying to write
[Apr 6 19:35:18] NOTICE[26970]: utils.c:938 ast_carefulwrite: Timed out
trying to write

or 

[Apr 6 22:37:10] DEBUG[20731]: chan_sip.c:2226 __sip_ack: Stopping
retransmission on '7cd1530c5be721a24327004c5d520b3e at 10.0.50.254' of Request
102: Match Found
[Apr 6 22:37:10] DEBUG[20731]: chan_sip.c:4653 sip_alloc: Allocating new
SIP dialog for (No Call-ID) - OPTIONS
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 (0103823) aragon (reporter) - 2009-04-27 12:30
 http://bugs.digium.com/view.php?id=14843#c103823 
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I revisited the logs from the site that was fixed by reverting r165796 and
I am still seeing errors related to bug report 14723

[Apr 27 10:50:35] NOTICE[8690] chan_local.c: No such extension/context
@debcomainbtn-local while calling Local channel
[Apr 27 10:51:18] WARNING[16768] app_queue.c: Unable to join queue
'queuename'
[Apr 27 10:51:35] ERROR[22930] channel.c: ast_read() called with no
recorded file descriptor.
[Apr 27 10:51:43] WARNING[12959] file.c: Failed to write frame

This means that the IVR problem was fixed by reverting r165796 but queues
are still missing calls 

Issue History 
Date Modified    Username       Field                    Change               
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2009-04-27 12:30 aragon         Note Added: 0103823                          
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