[OpenSIPS-Users] Fix_nated_SDP works very well. How to do more changes in the SDP?

Daniel Zanutti daniel.zanutti at gmail.com
Mon Apr 18 23:56:31 CEST 2016


Hi Rodrigo

In theory you can modify any SIP/SDP using text ops:

http://www.opensips.org/html/docs/modules/1.6.x/textops.html#id293600

I don't know any other way...

Regards


On Mon, Apr 18, 2016 at 6:17 PM, Rodrigo Pimenta Carvalho <pimenta at inatel.br
> wrote:

>
> Hi.
>
>
> Fix_nated_sdp() function works very well. I can fix IPs in my SDP, for
> attributes "o" and "c'.
>
>
> However, due to a particular desire of my customer, I have to change more
> others IPs in my SDP. How to do it? Is it possible?
>
>
> For example, how to change the pointed IP seen bellow:
>
>
>
> v=0
> o=- 3669999344 3669999344 IN IP4 xxx.yyy.240.71
> s=pjmedia
> b=AS:25
> t=0 0
> a=X-nat:1
> m=audio 48053 RTP/AVP 8 110 96
> c=IN IP4 xxx.yyy.240.71
> b=TIAS:8000
> a=rtcp:51193 IN IP4 192.168.100.1
> a=sendrecv
> a=rtpmap:8 PCMA/8000
> a=rtpmap:110 speex/8000
> a=rtpmap:96 telephone-event/8000
> a=fmtp:96 0-16
> a=ice-ufrag:30381869
> a=ice-pwd:6268c522
> a=candidate:Sc0a864f1 1 UDP 1862270975 192.168.100.1 48053 typ srflx raddr
> 192.168.100.241 rport 48053  //<------------------------How to change
> 192.168.100.1 to another  IP ????????
> a=candidate:Hc0a864f1 1 UDP 1694498815 192.168.100.241 48053 typ host
> a=candidate:Sc0a864f1 2 UDP 1862270974 192.168.100.1 51193 typ srflx raddr
> 192.168.100.241 rport 51193
> a=candidate:Hc0a864f1 2 UDP 1694498814 192.168.100.241 51193 typ host
> a=direction:active
> a=oldoip:192.168.100.1
> a=oldcip:192.168.100.1
>
>
> We are using ICE and STUN, and it could be already well done if the STUN
> was on Internet as in an ordinary solution.
>
> However, my customer asked me to put my stun server in the same machine of
> the softphone client that generates this SDP content.   [image: ☹]
>
>
> Any hint will be very helpful!
>
>
> Best regards.
>
>
> RODRIGO PIMENTA CARVALHO
> Inatel Competence Center
> Software
> Ph: +55 35 3471 9200 RAMAL 979
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
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