[OpenSIPS-Users] SEAS connector for external AS

[Thomas]

Hi Bogdan, 

OpenSIPS 2.0 architecture sounds indeed appealing. The documentation reads that L0-L3 are mandatory, which means that Core module will always perform transaction management before dispatching incoming messages to the Routing Engine. Is my understanding correct ? 

Regards, 

Thomas

Le 27 sept. 2010 à 17:39, Bogdan-Andrei Iancu a écrit :

> Hi Thomas,
> 
> The idea of having a generic connector module (to be able to pass custom 
> info from a SIP message to an external app) was really appealing to me 
> several time. Something like SEAS - with the binary encoded format sent 
> to other app - but no so linked to the logic in weSIP (the external app)....
> 
> Anyhow, this will be automatically solved in opensips 2.0 where the 
> routing script itself is an external application:
> 
>          http://www.opensips.org/Development/NewDesignDescription#toc2
> 
> Regards,
> Bogdan
> 
> Thomas wrote:
>>> I would be interested in whether what you are asking is possible to do 
>>> with SIP/UDP. The proxy would have to be able to monitor (or being 
>>> told about) the state of AS instances, and in case of failover, fix 
>>> IPs in signaling (like in NAT traversal). This could actually be done 
>>> on stateless lb proxy.
>>> 
>> 
>> Yes, IPs in signaling would be an issue then. I am not sure either that it is possible or even a good design option. The idea I had with a SEAS-like connector is to terminate the transport layer at OpenSIPS so that IP fixing is done the other way around i.e. by the application server (IP of OpenSIPS is used for Contact ... instead of internal IP). This would be similar to a SIP IPVS configuration I think. But as far as I understand now SEAS was not designed for this purpose and I would need to develop another OpenSIPS module, if it is possible to use OpenSIPS only for the transport layer.
>> 
>> 
> 
> 
> -- 
> Bogdan-Andrei Iancu
> OpenSIPS Bootcamp
> 15 - 19 November 2010, Edison, New Jersey, USA
> www.voice-system.ro
> 
> 
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