[SR-Users] Kamailio Cluster

[SamyGo]

Hi,
Interesting discussion going on. Ive to ask can OP use shared location
table between different kamailio servers and use db mode 3.
All he has to do is if UA B calls UA A via Kamailio2 he just needs to find
the received socket and if it is not local Kamailio2 then route to the IP
maybe attach a custom header and relay call to Kamailio1.
Kamailio1 gets call with the custom headers sends call to route(LOCATION)
or w/e he has for lookups.

Regards,
Sammy
On Feb 3, 2016 06:19, "Daniel Tryba" <d.tryba at pocos.nl> wrote:

> On Wed, Feb 03, 2016 at 01:48:50PM +0330, Gholamreza Sabery wrote:
> > Actually I think something is not clear here. Suppose I want to use two
> > Kamailio servers such that a client which is registered on server A is
> able
> > to call another client registered on server B. In this case I use DB_MODE
> > 3. Both servers have access to location database but sockets are
> non-local
> > and cleints are behind symmetric NATs.Now  only the server on which the
> > client is registered and sent it's request to is able to respond(because
> of
> > symmetric NAT). Is it possible to implement this scenario using Path
> header?
>
> This is still ambigious, server B can't call the client due to nat, but
> server B can call server A. The trick might be to add a Path header on
> server A before save the register on server A. Or to use custom queries
> to find out that the registered socket isn't local so send the invite to
> the non local adress instead.
>
> I asked similar questions:
> http://lists.sip-router.org/pipermail/sr-users/2015-April/087867.html
>
> My final solution is using a really loadbalancer with static config,
> which adds Path and dispatches to individual backends. Difference is
> that server B doesn't INVITE to server A but to the loadbalancer for a
> client registered on server A.
>
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