[SR-Users] Does Kamailio support RFC5626 as Edge Proxy(or outbound proxy)

[Andreas Granig]

Hi Derrick,

> Edge Proxy adds a Path header with a flow token
>    and includes the "ob" parameter when Processing Register Requests.
>  
> Eg:
>    Path: <sip:VskztcQ/S8p4WPbOnHbuyh5iJvJIW3ib at ep1.example.com;lr;ob>

http://kamailio.org/docs/modules/stable/modules_k/path.html and
http://kamailio.org/docs/modules/stable/modules_k/registrar.html#id2954403
(and the two following params) might be sufficient if you're just
interested in traversing NAT via kamailio acting as a load-balancer.
It's an implementation of RFC3327, see
http://openser.org/pipermail/devel/2006-March/002142.html for a
real-world example.

It won't handle the "ob" header and various keep-alive mechanisms
proposed in RFC5626 though, but probably you can solve this with the
nat-ping features of nathelper or nat_traversal modules anyways?

Andreas

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