Hi,
On Jul 21, 2011, at 8:50 AM, Pasan Meemaduma wrote:
> HI Saul,
>
> Further I have below in my config , Is this cause the problem ?
>
>
> if (loose_route()) {
> if(!has_totag()) {
> sl_send_reply("403", "Initial loose-routing rejected");
> exit;
> }
>
> if(nat_uac_test("19") || search("^Route:.*;nat=yes")) {
> if(!search("^Content-Length:[ ]*0")) {
> fix_nated_sdp("3");
> setbflag(2);
> }
> }
> append_hf("P-hint: rr-enforced\r\n");
> route(1);
> }
>
> Is fix_nated_sdp() cause source address being append to sdp and media proxy
> ip 58.96.1.2 is append by use_media_proxy() ?
>
Yes, indeed. Using both fix_nated_sdp and use_media_proxy will modify the same
SDP field and because of how modifications are applied to messages by OpenSIPS,
you'll end up with a mess.
When a function modifies a message it doesn't really apply the modification
right away, it appends a 'lump', imagine its a modification marker, and later,
when the message is about to be sent out, all modifications are applied.
Because you are calling fix_nated_sdp *and* use_media_proxy, two lumps will be
added and both modify the c line in the SDP -> bad thing.
> If this is the case how can I fix the config. Will commenting out
> fix_nated_sdp("3"); fix the problem.
>
If you use MediaProxy stick to the functions provided by the MediaProxy module,
when it comes to modifying the SDP. You may also use the engage_mediaproxy
function, which uses the dialog module to internally call use_media_proxy and
end_media_session so you don't need to call them manually.
Regards,
--
Saúl Ibarra Corretgé
AG Projects
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