[asterisk-bugs] [Asterisk 0013996]: [patch] Presence subscription on Cisco SIP phone needs special Cisco-styled XML

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=13996 
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Reported By:                Nugget
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13996
Category:                   Channels/chan_sip/NewFeature
Reproducibility:            always
Severity:                   feature
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           SVN 
JIRA:                       SWP-202 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2008-11-30 15:13 CST
Last Modified:              2011-03-31 16:32 CDT
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Summary:                    [patch] Presence subscription on Cisco SIP phone
needs special Cisco-styled XML
Description: 
Cisco phones appear to be unable to parse the existing PIDF XML being
generated by Asterisk for presence notification.  I've attached a patch
which produces well-formed (but incomplete) XML which will satisfy a Cisco
phone.  The patch as supplied will successfully render a "busy"
subscription, but does not send a subsequent "available" notification, so
presence detection only half works currently.

I suspect the next step might be to watch some CallManager SIP traffic to
identify precisely what XML tags the phone is expecting in order to
properly parse an available subscription, but I'm not in a position to do
that.  I'll continue to work with this, though, and perhaps may be able to
stumble upon the precise data the Cisco phone is looking for.
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 (0133229) jthurman (reporter) - 2011-03-31 16:32
 https://issues.asterisk.org/view.php?id=13996#c133229 
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@gareth: I was unable to get a pcap from CCM today, but I did notice that
the DND is enabled on the Second registration.  Here is the test:

1. 7941 is registered
2. DND is enabled
3. 7941 is restarted or reset
4. 7941 registers again, DND is not active on the phone (it is yes in
Asterisk)
5. Registration Expires
6. 7941 re-registers, DND is shown as active on the phone and Asterisk

Same phone on CCM has DND shown active on the initial registration.  I
also uploaded a sip debug for the re-registration named
second-sip-trace-7941-9-1-1SR1.txt 

Issue History 
Date Modified    Username       Field                    Change               
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2011-03-31 16:32 jthurman       Note Added: 0133229                          
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