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.tr...@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. > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >
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