[asterisk-bugs] [Asterisk 0018661]: DAHDI channel becomes busy/unusable after it's called and not picked up

[Asterisk Bug Tracker]

The following issue has been UPDATED. 
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https://issues.asterisk.org/view.php?id=18661 
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Reported By:                dgonzalezh
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18661
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     closed
Asterisk Version:           1.6.2.16.1 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
Resolution:                 won't fix
Fixed in Version:           
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Date Submitted:             2011-01-22 15:54 CST
Last Modified:              2011-01-24 08:48 CST
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Summary:                    DAHDI channel becomes busy/unusable after it's
called and not picked up
Description: 
I'm using ClearOS 5.2 x86 (CentOS 5.2) withan Openvox A1200P card with just
two modules 1 FXS and 1 FXO on slots 1 and 4 respectively. I'm also using
DAHDI 2.40
DAHDI Version: 2.4.0
Echo Canceller(s): OSLEC
FreePBX 2.8.0.4 

I have some SIP and IAX extensions and trunks which work well also the FXO
port doesn't suffer from this behaviour.

I start dahdi using service dahdi start and then asterisk using amportal
start, when I call extension 101 which is the on the FXS module 1 the phone
rings

and this shows

    -- Called 1
    -- DAHDI/1-1 is ringing
    -- DAHDI/1-1 is ringing
    -- DAHDI/1-1 is ringing
    -- DAHDI/1-1 is ringing
    -- Nobody picked up in 15000 ms
    -- Hungup 'DAHDI/1-1'

[Jan 22 16:44:29] WARNING[9040]: chan_dahdi.c:2911 dahdi_set_hook: DAHDI
hook failed returned -1 (trying 1): Device or resource busy
    -- User disconnected

After this the modules/extension becomes unusable and all the time I get
the "busy" voicemail message for that extension.

I have to shutdown asterisk and then unload dahdi and re-load it and
restart Asterisk and I can make a call again but then this issue comes up
again.

This began happening since I upgraded to 1.6.2.16.1 + DAHDI linux complete
2.4.0+2.4.0
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---------------------------------------------------------------------- 
 (0130931) lmadsen (administrator) - 2011-01-24 08:48
 https://issues.asterisk.org/view.php?id=18661#c130931 
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Please request support from your hardware vendor. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2011-01-24 08:48 lmadsen        Note Added: 0130931                          
2011-01-24 08:48 lmadsen        Status                   new => closed       
2011-01-24 08:48 lmadsen        Resolution               open => won't fix   
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