[asterisk-users] Voicemail MWI

[Aaron Daniel]

For us the voicemail server doesn't have to know what phones are
registered where.  We have an externnotify script that drops x number of
msgx.txt files into the respective voicemail folders after any call that
goes through the voicemail server.  x in this would be the number of
messages.

Since our servers are all exactly the same, we just blanket the script
across all our call servers, but if you have specific servers where the
phones are registered at, you can modify the SIP channel to update the
db with server information and have the voicemail server just run the
script across servers that that particular phone is currently registered
with.

The scripts we use are relatively lightweight, but can probably be
turned into some sort of listening service to remove some of the ssh
overhead required.  Not a problem for us, but you might not like it
much :)

On Fri, 2006-10-06 at 11:49 -0600, Douglas Garstang wrote:
> I'd like to know if anyone has a suggested fix for this...
> 
> You have a 'cluster' of Asterisk servers that use DUNDi etc for registration redundancy, finding other phones etc. You have a separate Asterisk box for voicemail. For voicemail deposit/retrieval you trunk the call over to the voicemail server. This all works fine. No issues there.
> 
> What about MWI though? Your phones register with the cluster, not with the voicemail server, and therefore the voicemail server has no knowledge of where the phones are and therefore cannot send out SIP NOTIFY messages to phones.
> 
> This is a general architectural problem with Asterisk. Has anyone solved it? Are the developers working on fixing problems like this for 1.6?
> 
> Doug.
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-- 
Aaron Daniel
Computer Systems Technician
Sam Houston State University
amdtech at shsu.edu
(936) 294-4198