[asterisk-bugs] [Asterisk 0014005]: Pickup() can't pickup calls to some SIP devices

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14005 
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Reported By:                ddl
Assigned To:                
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Project:                    Asterisk
Issue ID:                   14005
Category:                   Applications/app_directed_pickup
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           Older 1.4 
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:             2008-12-01 18:28 CST
Last Modified:              2008-12-02 22:45 CST
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Summary:                    Pickup() can't pickup calls to some SIP devices
Description: 
I've observed that when a SIP device responds to an INVITE with a 183
without
ever sending a 180 the outgoing channel remains in the Down state rather
than
moving to Ring[ing].  This prevents Pickup() from picking up the call.  I
did
some extensive Google searching to try to understand the Pickup() failures
and
generally found a lot of reports where Pickup() seemed to work in some
cases
but not in others.  I wonder if this could be the root cause of some of
the
confusion.

By adding AST_STATE_DOWN to the test in app_directed_pickup.c I was able
to
get Pickup() to work with SIP devices (in this case the FXS port on a
Cisco
router) that behave as above; however, I have no idea what collateral
damage
this might cause.  It feels like there should be some other state for
call
progressing.

I am using 1.4.11 as provided in the FreeBSD 6.3 port.  I apologize if
this
has already been addressed in a newer version.  I checked 1.4.22 and the
code appeared the same.
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---------------------------------------------------------------------- 
 (0095705) ddl (reporter) - 2008-12-02 22:45
 http://bugs.digium.com/view.php?id=14005#c95705 
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Well, 1.6.0.1 exhibits the same behavior and the same "fix" works.  I'm
not sure if that is the latest version in the sense that there are
different branches in play along with various betas and release
candidates.
If you have a specific version in mind that might behave differently let
me know and I'll try it. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-12-02 22:45 ddl            Note Added: 0095705                          
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