[OpenSER-Users] Strange Provider SIP - DSP fields in trying

[Marc LEURENT]

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I already have:

onreply_route[1] {
        xlog("!!!!  STARTING REPLY ROUTE\r\n");
        #uac_restore_from();
        if ((isflagset(5) || isbflagset(6)) && status=~"(183)|(2[0-9][0-9])") {
                force_rtp_proxy();
        }
        search_append('Contact:.*sip:[^>[:cntrl:]]*', ';nat=yes');

        if (isbflagset(6)) {
                fix_nated_contact();
        }
        exit;
}

???? Strange ?? no?


Dan-Cristian Bogos a écrit :
> Hi Marc,
> 
> this one should be handled in the same way u do with 183/200, catch it
> in onreply route and force_rtpproxy()
> 
> Cheers,
> DanB
> 
> On 9/4/07, Marc LEURENT <lftsy at free.fr> wrote:
> I have a SIP provider: telecomitalia that use a cirpack!
> The problem is that the cirpack sends TRYING and RINGING packets with SDP fields! (I don't know if it follows RFC...)
> 
> When a natted contact place a call, I use a rtp_proxy, but only the 200ok with session description is modified.
> Both TRYING/RINGING with session description Connection Address/port are not replaced!
> 
> OpenWengo understand the modification and change the IP where it sends RTP from the one in TRYING/RINGING SDP to the one in 200ok (proxy address
> because of force_rtp_proxy())
> But other softphones like Twinkle don't understand it and still send RTP to the first IP!
> 
> 
> Do you know how I can delete or modify TRYING/RINGING SDP?
> 
> Thanks
> 
> Below an example of a RINGING with SDP
> 
> 
> 
> #
> U 212.129.6.65:5060 -> 88.191.45.91:5060
> SIP/2.0 180 Ringing.
> Allow: UPDATE,REFER.
> Call-ID: 866489712 at 192.168.95.47.
> Contact: <sip:212.129.6.65:5060>.
> Content-Type: application/sdp.
> CSeq: 21 INVITE.
> From: "Marc LEURENT" <sip:mleurent at sd-7501.dedibox.fr>;tag=542924903.
> Record-Route: <sip:88.191.45.91;lr;ftag=542924903>.
> Server: Cirpack/v4.39a (gw_sip).
> To: <sip:0614730696 at sd-7501.dedibox.fr>;tag=01-07627-0003a50a-10152ba67.
> Via: SIP/2.0/UDP 88.191.45.91;received=88.191.45.91;branch=z9hG4bK2cf4.8d35c996.0,SIP/2.0/UDP
> 192.168.95.47:5060;received=81.57.0.22;rport=64726;branch=z9hG4bK20204963;xxx-nat-type=sym.
> Content-Length: 303.
> .
> v=0.
> o=cp10 118890098142 118890098144 IN IP4 212.129.46.35.
> s=SIP Call.
> c=IN IP4 212.129.47.194.
> t=0 0.
> m=audio 32896 RTP/AVP 8.
> b=AS:64.
> a=rtpmap:8 PCMA/8000/1.
> a=ptime:10.
> a=sendrecv.
> m=video 65534 RTP/AVP 34 31.
> a=rtpmap:34 H263/90000/1.
> a=fmtp:34 .
> a=rtpmap:31 H261/90000/1.
> a=fmtp:31 .
> a=inactive.
>>
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