[asterisk-users] External MWI question for Asterisk

[Johansson Olle E]

5 feb 2008 kl. 20.13 skrev Jason Crum:

> Gah. So currently in 1.4, there is no method of having Asterisk  
> accept SIP NOTIFY from another server, and pass it on to endpoints  
> if it matches? I can't imagine this being that complex, but then  
> again I'm not familiar with the Asterisk internals. It just seems  
> Asterisk would compare the SIP NOTIFY to what it has currently  
> registered (sip show peers) and forward it on to the endpoint. I'm  
> pretty sure sipXecs can do this.
But you have to consider that you are mixing two namespaces in  
Asterisk. SIPx is a SIP-only proxy/PBX, but Asterisk is multiprotocol.  
We have the dialplan, which is the address you call. And then device  
names, which are more "accounts". Those are separate. A notify is  
addressed to a SIP uri,
something that we handle as an extension. We need to route it  
internally. You might want to send a SIP MWI notify to a hotel phone  
connected to a channel bank to get those irritating red lamps to  
blink... You can't think SIP only in Asterisk (even though I sometimes  
like the idea) since we've
got a multiprotocol architecture.

/O
>
>
> Anyway, thanks for the reply Olle. I think if I re-design my  
> solution for the phones to register with sipXecs and not Asterisk I  
> might make some headway, so that's my next move.
>
> On Feb 5, 2008 1:52 AM, Johansson Olle E <oej at edvina.net> wrote:
>
> It is currently not possible. With the new event-driven MWI
> notification system in 1.6, it should be possible to add code for it,
> but it would be kind of tricky. If you send an MWI to an extension -
> how do we know where to send it? We either need to use the existing
> hints that connect the extensions to the device name space, or add a
> new sort of voicemail hints that connects an extension to a
> voicemailbox ID that we devices can subscribe to.
>
> /O
>
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---
* Olle E Johansson - oej at edvina.net
* Cell phone +46 70 593 68 51, Office +46 8 96 40 20, Sweden