[SR-Users] Determining next hop for any SIP message

[George Diamantopoulos]

I guess you're right...

But if it is possible to do this with different means, I would prefer it...

I think I only miss the following points:

* Does $nh(d) work when the Route header enforces the next-hop in an
in-dialog request?
* Is it safe to determine next hop for responses by looking at the first
Via header only, or are there exceptions to this?

BR,
George

On 13 April 2018 at 21:20, Alex Balashov <abalashov at evaristesys.com> wrote:

> That's probably true of any Kamailio functionality. :-) But point taken.
>
> On April 13, 2018 2:09:10 PM EDT, George Diamantopoulos <
> georgediam at gmail.com> wrote:
> >Well, the "SIP routing with Kamailio" book by Daniel and Elena states:
> >
> >"Defining the onsend_route should be done only if really needed,
> >because it
> >is executed for each request sent out, excluding the retransmissions."
> >
> >Also, it similarly won't work for responses, only for requests...
> >
> >On 13 April 2018 at 21:00, Alex Balashov <abalashov at evaristesys.com>
> >wrote:
> >
> >> "A simpler way to do it, of course, would be to use the onsend_route,
> >but
> >> that would most likely introduce an unnecessary overhead for all
> >routed
> >> messages."
> >>
> >> What informs that assumption?
> >>
> >> I suppose there is a measurable nonzero performance penalty to
> >anything,
> >> but it should be negligible.
> >>
> >> -- Alex
> >>
> >> --
> >> Sent via mobile, please forgive typos and brevity.
> >>
> >> _______________________________________________
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> >>
>
>
> -- Alex
>
> --
> Sent via mobile, please forgive typos and brevity.
>
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