[asterisk-bugs] [Asterisk 0019056]: Re-registration of SIP gateway sometimes occurs after the scheduled delay which causes gateway to see asterisk as unregistered

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=19056 
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Reported By:                fpeters
Assigned To:                
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Project:                    Asterisk
Issue ID:                   19056
Category:                   Channels/chan_sip/Registration
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           Older 1.6.2 - please test a newer version 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2011-04-03 03:39 CDT
Last Modified:              2011-04-08 14:37 CDT
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Summary:                    Re-registration of SIP gateway sometimes occurs
after the scheduled delay which causes gateway to see asterisk as unregistered
Description: 
Note: the version reported by asterisk is 1.6.2.5 (not found in the product
version field of Mantis)

We have this problem on several asterisk installations.
We have some external SIP gateways we register to with a time-out of 120
seconds
Asterisk schedules a re-register every 105 second which is fine.
However, a few times a day, the re-registration occurs too late. This has
the side effect of becoming invalid for the outside gateway point of view.
On that outside gateway we have some specific rules in case asterisk is no
more registered, so this problem causes missed calls if they occur within
that "unregistered" period

Asterisk does not seems to be busy when the late re-registration occurs.
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 (0133553) fpeters (reporter) - 2011-04-08 14:37
 https://issues.asterisk.org/view.php?id=19056#c133553 
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I attached a file with information. unfortunately it does not contain much
more information than the one I placed in the message.
In fact asterisk is doing nothing at time the re-registration should take
place.
If you look at the time asterisk is telling "Outbound Registration: Expiry
for sip.3starsnet.com is 120 sec (Scheduling reregistration in 105 s)" and
looking for just 105 secs after, then nothing happens asterisk is just
idle, but the re-registration occurs somewhat later (and too late).
In the attached file, it occurs after 2 minutes and 3 seconds, so 18
seconds later than scheduled. 

Issue History 
Date Modified    Username       Field                    Change               
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2011-04-08 14:37 fpeters        Note Added: 0133553                          
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