[asterisk-bugs] [Asterisk 0013182]: [patch] Missed Calls is cleared from phone status line

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13182 
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Reported By:                pj
Assigned To:                mvanbaak
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Project:                    Asterisk
Issue ID:                   13182
Category:                   Channels/chan_skinny
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 133579 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-07-28 12:29 CDT
Last Modified:              2008-08-06 15:57 CDT
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Summary:                    [patch] Missed Calls is cleared from phone status
line
Description: 
chan_skinny is doing excessive clearing of phone status display, this
causes, that missed call info is cleared from display and can be accessed
only by entering phone missed call history, that is anoying for users.
I did packet dump of communication between skinny phone (cisco 7920) and
callmanager (4.1) and compared with packet dump between chan_skinny and
same phone (7920).
This issue is probably caused by chan_skinny, because asterisk replies to
phone's KeepAliveMessage, not only with KeepAliveAckMessage (as callmanager
only doing), but chan_skinny after AckMsg immediatelly sends also
DefineTimeDate and (2x) SetLampMessage!

Missed call issue was also discused in
http://bugs.digium.com/view.php?id=9152#64390
DEA said here, that callmanager also clears missed calls from phone
prompt, but is't not true.
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 (0091172) pj (reporter) - 2008-08-06 15:57
 http://bugs.digium.com/view.php?id=13182#c91172 
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debug mwi from callmanager will be quite hard for me, because we don't use
unity voicemail, but I can try to look into our lab, if you need this. It
will take some time. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-08-06 15:57 pj             Note Added: 0091172                          
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