[SR-Users] Kamailio as front proxy for multiple sip servers

[Alex Balashov]

It sounds like you are in need of the Path extension:

https://tools.ietf.org/html/rfc3327

https://kamailio.org/docs/modules/stable/modules/path.html

-- Alex

On 5/5/21 5:44 PM, Eliphas Levy Theodoro wrote:

> Hello!
> 
> I am trying to config one kamailio as reverse proxy for a bunch of 
> internal (no internet address) separate asterisk sip instances (per 
> domain). The kamailio server would be the only with the valid IP 
> address, so would use rtpengine to force to be in the media path.
> 
> Like this scenario: 
> https://opensips.org/pipermail/users/2020-August/043610.html 
> <https://opensips.org/pipermail/users/2020-August/043610.html>
> 
> I have used as starting point this very basic config:
> https://blog.voipxswitch.com/2015/03/27/kamailio-basic-sip-proxy-all-requests-setup/ 
> <https://blog.voipxswitch.com/2015/03/27/kamailio-basic-sip-proxy-all-requests-setup/>
> 
> Basically just added rtpproxy support, and voilà, inter-SIP is 
> working, media always passing into the proxy.
> 
> The problem: I would have WebRTC phones connecting too. I tried setting 
> WSS up in kamailio, and asterisk (pjsip) wouldn't know how to send the 
> message to the proxy: on register it has trasnport=wss in the contact: 
> header, looks like it is confusing the asterisk.
> 
> So, I resort for the wisdom of the list :) What would be the 
> good-best-path to take here, hack the header, or put the webphones 
> registering directly on the asterisks (with a nginx reverse proxy maybe)?
> 
> Someone must have already made a blog with such setup, but I could not 
> google-unearth it at least until now.
> 
> Regards,
> -- 
> Eliphas
> 
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-- 
Alex Balashov | Principal | Evariste Systems LLC

Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/