[Freeswitch-users] FS does not set response headers in channel variables

[Peter Olsson]

I've added a proposed patch here, that might solve what you're after:
http://jira.freeswitch.org/browse/FS-6075.

Please note that my patch has a small error, it sets the same variable
twice, read through the comments if you want to test it.

Would this do what you are requesting?

/Peter


2014/1/20 Dahlberg, David <david.dahlberg at fkie.fraunhofer.de>

> Am Montag, den 13.01.2014, 10:47 +0100 schrieb Karsten Horsmann:
> > Hello,
> >
> > it will ONLY work if you X- prefix your self SIP-Headers. Non-standard
> SIP
> > headers should be preceded with an X-.
>
> Both sentences are not true. "X-" header prefixes are now depricated by
> the IETF (RFC 6648/BCP 178).
>
> And you indeed CAN set non-X-headers with the FS and mod_sofia. The only
> problem seem to be, that
>
> a) headers set by api calls like hangup() (e.g. "Reason:" with namespace
>    "Q.931" etc.) will be overwritten and
> b) you cannot access those variables, on incoming calls (i.e. if you
>    have not set them on your own).
>
> The only limitation seems to be in mod_sofia (not in Sofia SIP as the
> Wiki claims). I do not have access to the git right now, but if I
> remember correctly, Sofia distinguishes between "known headers",
> including "x-headers" and "unknown headers" which are saved in a
> different struct. Mod_sofia already contains all the necessary functions
> to retrieve "unknown headers" as the module needs some of them itself.
> But IIRC the according functions are only ever invoked with constant
> strings, so there is definitely no easy way of reading them. Writing is
> possible though as I previously mentioned.
>
> Regards
>         David
>
>
>
>
>
>
> --
> David Dahlberg
>
> Fraunhofer FKIE, Dept. Communication Systems (KOM) | Tel: +49-228-9435-845
> Fraunhoferstr. 20, 53343 Wachtberg, Germany        | Fax: +49-228-856277
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