[asterisk-bugs] [Asterisk 0017998]: [patch] chan_sip send MWI Notify, even if there is no app_voicemail loaded

[Asterisk Bug Tracker]

The following issue requires your FEEDBACK. 
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https://issues.asterisk.org/view.php?id=17998 
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Reported By:                vrban
Assigned To:                
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Project:                    Asterisk
Issue ID:                   17998
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.36 
JIRA:                       SWP-2245 
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:             2010-09-16 04:19 CDT
Last Modified:              2010-10-15 11:52 CDT
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Summary:                    [patch] chan_sip send MWI Notify, even if there is
no app_voicemail loaded
Description: 
Hello, if found this issue, after we outsourced the VM to a separate
Asterisk box. And then i noticed, that the asterisk maschines that only
should to call handling (noload => app_voicemail.so) still send MWI
Notify's when a SIP client register.

The patch fix this issue. Also i must be sure, that chan_sip.so is not
preloaded in modules.conf
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 (0128101) russell (administrator) - 2010-10-15 11:52
 https://issues.asterisk.org/view.php?id=17998#c128101 
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My opinion is that I don't find the existing behavior to be a problem.  If
you configure a mailbox, then I would expect Asterisk to send MWI.  If you
don't want it to send MWI, then don't configure a mailbox.

In versions after 1.4, this type of change could be harmful, as it is
possible for Asterisk to know about the state of a mailbox even without
app_voicemail loaded using some distributed state features. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-10-15 11:52 russell        Note Added: 0128101                          
2010-10-15 11:52 russell        Status                   ready for testing =>
feedback
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