[asterisk-dev] SUBSCRIPTION for MWI support for multiple boxes

[Russell Bryant]

Norman Brandinger wrote:
> In reference to this thread:
> 
> http://lists.digium.com/pipermail/asterisk-dev/2006-October/023925.html
> 
> Was this idea tabled or was it implemented ?  I would be willing to put
> some development efforts into helping to make this work (so that we can
> remove, or at least not wholly depend on externnotify).
> 
> In a nutshell, would appear to require multiple NOTIFYs being sent from
> Asterisk to the peer, one for each "mailbox=" entry.
> 
> We are trying to implement a SPA9000 solution without depending on the
> SPA400 voicemail server (which, by the way, is based on Asterisk).

Just from memory, this is how I would expect things to work in Asterisk right now.

In 1.4, you can have multiple mailboxes specified - mailbox=1234,5678 at foo.
Asterisk will not send separate NOTIFY messages for each mailbox.  It will
determine a combined mailbox state and send that.

In trunk, it will actually send the state of each mailbox in a separate NOTIFY
message.  Also, FWIW, the code to do this is actually very invasive and would
not be easily backported.

-- 
Russell Bryant
Software Engineer
Digium, Inc.