Re: [Kamailio-Users] NAThelper and multipart SDP

Hello Pascal,

I have just committed support for multipart bodies in sip router, if works then I will backport to 1.5.

http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=1f41271e...

Can you test it? Unfortunately I cannot do it these days properly due to traveling. Patch should work pretty straightforward with 1.5 though, if you want to test it directly there.

Cheers, Daniel

On 06/22/2009 11:30 AM, Pascal Maugeri wrote:

I tried to install mediaproxy but it looks tricky to install (many dependencies, including kernel specific configurations) :-( and I would like to stick to rtpproxy for performance reason.

Do you believe the same workaround using textops/filter_body can be used using rtpproxy ? I think yes as these are two different things as said Juha.

Regards, Pascal

On Fri, Jun 19, 2009 at 9:26 PM, Pascal Maugeri <pascal.maugeri@gmail.com mailto:pascal.maugeri@gmail.com> wrote:

On Fri, Jun 19, 2009 at 9:13 PM, Juha Heinanen <jh@tutpro.com
<mailto:jh@tutpro.com>> wrote:

    Pascal Maugeri writes:

     > So if I understand well (please correct me if I'm wrong)
    the "plan" is:
     >
     > 1º) I install MediaProxy and use Kamailio MEDIAPROXY module
    instead of
     > rtpproxy/NATHelper
     >
     > 2º) filter the app/sdp part with
     >
     > if (has_body("multipart/mixed")) {
     >     if (filter_body("application/sdp") {
     >         remove_hf("Content-Type");
     >
     >         append_hf("Content-Type: application/sdp\r\n");
     >     } else {
     >
     >         xlog("Body part application/sdp not found\n");
     >     }
     > }

    you don't need to call filter_body if you use mediaproxy.

     > 3º) then engage the media proxy with
     >
     > if (method==INVITE && !has_totag()) {
     >
     >     # We can also use a specific media relay if we need to
     >     #$avp(s:media_relay) = "1.2.3.4";
     >     engage_media_proxy();
     > }

    i have never used engage_media_proxy() functions, because it
    makes some
    assumptions that are not generally true.  i use
    use_media_proxy() instead.

     > 4º) finally put the body part(s) that have been removed in
    1º) and relay the
     > INVITE to my next hop.
     >      I believe I can save the body part(s) in 1º) and put
    them back using
     > set_body(txt, content_type).

    you don't need to do anything like that if you use
    use_media_proxy()
    function, because it does not remove anything.


Thanks Juha ! I can't wait for monday to test it :-)

Have a nice week-end
Pascal




    -- juha

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