[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:              2008-12-09 15:14 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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 (0096031) svnbot (reporter) - 2008-12-09 15:14
 http://bugs.digium.com/view.php?id=14005#c96031 
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Repository: asterisk
Revision: 162341

U   branches/1.4/apps/app_directed_pickup.c

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r162341 | file | 2008-12-09 15:14:52 -0600 (Tue, 09 Dec 2008) | 4 lines

Add 'down' as a valid state for directed call pickup. This creeps up when
we receive session progress when dialing a device and not ringing.
(closes issue http://bugs.digium.com/view.php?id=14005)
Reported by: ddl

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http://svn.digium.com/view/asterisk?view=rev&revision=162341 

Issue History 
Date Modified    Username       Field                    Change               
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2008-12-09 15:14 svnbot         Checkin                                      
2008-12-09 15:14 svnbot         Note Added: 0096031                          
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