[OpenSIPS-Users] B2BUA & Proxy Interaction

[Newlin, Ben]

Bogdan,

If I use local_route to do drouting as you suggest, I would need to register a route to handle failure so I can advance to the next destination in the set. But the documentation indicates that t_on_failure is not available in local_route. So it seems if drouting is used in this way it can be used for a single destination only, because the failover will not work. Is this correct?

Also, any comment on the idea of using the Binary Interface for fast failover of the B2BUA modules?

Ben Newlin | Sr Voice Network Engineer, CDE Development PureCloud
phone & fax +1.317.957.1009 | ben.newlin at inin.com

Interactive Intelligence
Deliberately Innovative
www.inin.com<http://www.inin.com/>

From: Bogdan-Andrei Iancu [mailto:bogdan at opensips.org]
Sent: Friday, December 26, 2014 2:59 AM
To: OpenSIPS users mailling list; Newlin, Ben
Subject: Re: [OpenSIPS-Users] B2BUA & Proxy Interaction

Hi Ben,

You can use the local route to do routing on the outgoing requests - like doing drouting, or usrloc lookups. But in B2B mode, some signaling related functionalities, like dialog support, accounting support will not work (because you do not have a proxy transaction, but only a UAC one) - of course, you can do manual ACC (directly from via script functions)..

Regards,


Bogdan-Andrei Iancu

OpenSIPS Founder and Developer

http://www.opensips-solutions.com
On 16.12.2014 22:41, Newlin, Ben wrote:
I have been reading through the documentation for the B2BUA functionality. I want to use a B2BUA while also having many of the proxy functionalities like drouting, accounting, etc. However, it is indicated that they do not work easily together.

The B2BUA Tutorial says this:

A solution is to consider that b2bua is a separate instance (logically speaking) which selects types/classes of destinations. A proxy instance will responsible for routing inside the class of destinations.

It is also noted in the tutorial that outgoing requests from the B2BUA module will trigger local_route processing. So my question is this:

Can the proxy functions be performed in local_route, prior to sending out the message? Would any callbacks registered for the message in local_route take precedence over the B2B routing logic?

Or must the message be actually sent out, via loopback ideally, so that it can be received again and processed as a proxy?

Also, is there any plan to implement Binary Interface replication for the B2BUA module like it was done with Dialog and UsrLoc for faster failover?


Ben Newlin | Sr Voice Network Engineer, CDE Development PureCloud
phone & fax +1.317.957.1009 | ben.newlin at inin.com<mailto:ben.newlin at inin.com>

Interactive Intelligence
Deliberately Innovative
www.inin.com<http://www.inin.com/>





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