[asterisk-bugs] [Asterisk 0013488]: mISDN rejects incoming calls

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13488 
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Reported By:                Christian_Pinedo
Assigned To:                crich
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Project:                    Asterisk
Issue ID:                   13488
Category:                   Channels/chan_misdn
Reproducibility:            random
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           1.4.21.2 
Regression:                 Yes 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2008-09-16 08:15 CDT
Last Modified:              2009-02-05 04:30 CST
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Summary:                    mISDN rejects incoming calls
Description: 
Asterisk seems to work well but sometimes per day calls from pstn are
rejected and outgoing calls cann't be done also. This is the output of a
rejected incoming call:

Tue Sep 16 09:58:11 2008: P[ 1]  channel with stid:0 for one second still
in use!
Tue Sep 16 09:58:11 2008: P[ 1]  set_channel: bc->channel:0 channel:1
Tue Sep 16 09:58:11 2008: P[ 1]  I IND :NEW_CHANNEL oad:943336600
dad:943445807 pid:23 state:none
Tue Sep 16 09:58:11 2008: P[ 1]   --> channel:1 mode:TE cause:16 ocause:16
rad: cad:
Tue Sep 16 09:58:11 2008: P[ 1]   --> info_dad: onumplan:0 dnumplan:2
rnumplan:  cpnnumplan:0
Tue Sep 16 09:58:11 2008: P[ 1]   --> caps:Speech pi:0 keypad:
sending_complete:1
Tue Sep 16 09:58:11 2008: P[ 1]  Chan not existing at the moment
bc->l3id:20012 bc:0x81e0374 event:NEW_CHANNEL port:1 channel:1
Tue Sep 16 09:58:11 2008: P[ 1]  NO USERUESRINFO
Tue Sep 16 09:58:11 2008: P[ 1]   !! NO FREE CHAN IN STACK
Tue Sep 16 09:58:11 2008: P[ 1]  Requested Channel Already in Use
releasing this call with cause 34!!!!
Tue Sep 16 09:58:11 2008: P[ 1]  I SEND:RELEASE_COMPLETE oad:943336600
dad:943445807 pid:23
Tue Sep 16 09:58:11 2008: P[ 1]   --> channel:0 mode:TE cause:16 ocause:34
rad: cad:
Tue Sep 16 09:58:11 2008: P[ 1]   --> info_dad: onumplan:0 dnumplan:2
rnumplan:  cpnnumplan:0
Tue Sep 16 09:58:11 2008: P[ 1]   --> caps:Speech pi:0 keypad:
sending_complete:1
Tue Sep 16 09:58:11 2008: P[ 1]  $$$ CLEANUP CALLED pid:23
Tue Sep 16 09:58:11 2008: P[ 1]  couldn't handle event
Tue Sep 16 09:58:11 2008: P[ 1]  CC_RELEASE_COMPLETE|CONFIRM [TE] 
Tue Sep 16 09:58:11 2008: P[ 1]  I IND :RELEASE_COMPLETE oad: dad: pid:23
state:none
Tue Sep 16 09:58:11 2008: P[ 1]   --> channel:0 mode:TE cause:16 ocause:34
rad: cad:
Tue Sep 16 09:58:11 2008: P[ 1]   --> info_dad: onumplan:0 dnumplan:0
rnumplan:0 cpnnumplan:0
Tue Sep 16 09:58:11 2008: P[ 1]   --> caps:Speech pi:0 keypad:
sending_complete:0
Tue Sep 16 09:58:11 2008: P[ 1]   --> no Ch, so we've already released.
Tue Sep 16 09:58:11 2008: P[ 0]  Cannot hangup chan, no ch
Tue Sep 16 09:58:11 2008: P[ 1]  release_chan: Ch not found!
Tue Sep 16 09:58:11 2008: P[ 1]  $$$ CLEANUP CALLED pid:23
Tue Sep 16 09:58:11 2008: P[ 1]  $$$ CLEANUP CALLED pid:23

It seems that mISDN has the Port 1 (first BRI) in a bad state and network
tries to send a new incoming mail through this port. I have to exec "misdn
restart port 1" to solve this situation. The rest of BRI links are free and
network tries to send the calls always through port 1 because it thinks
that is free. mISDN thinks that this port is already used and so all call
are rejected.

Software versions:
Debian GNU/Linux 4.0
Kernel 2.6.18
Asterisk 1.4.21.2
Zaptel 1.4.11
mISDN and mISDNuser 1.1.7.2
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---------------------------------------------------------------------- 
 (0099479) crich (manager) - 2009-02-05 04:30
 http://bugs.digium.com/view.php?id=13488#c99479 
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I was thinking that a very simple fix, could be that we send out SETUPs
only with the "ANY CHANNEL" B-Channel Identification Info Element. This
could possibly resolve the occurence of a cause:44. 

Please try the above patch, if this works i would make the channel-id
selection configurable. 

Issue History 
Date Modified    Username       Field                    Change               
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2009-02-05 04:30 crich          Note Added: 0099479                          
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