Hi Riko,

I understand, but my knowledge over rtpengine is not so good. Maybe you should ask over the rptengine project.

Best regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 12.01.2016 08:24, riko nir wrote:
Hi Andrei,

The opensips and rtpengine is interacting, for overwriting the SDP. We tested "JsSIP client with (opesips + rtpengine)" and it is working fine.

Here, DTLS handshake is happening using rtpengine, and so SRTP is handling by rtpengine.

But I don't want rtpengine to handle SRTP traffic. Only the "DTLS handshake" needs to be handled by RTPEngine and I just need the crypto method and the crypto keys from rtpengine to be sent to opensips.
Do you have any suggestion for fetching the crypto keys from rtpengine?

Thanks,
Riko

On Mon, Jan 11, 2016 at 4:24 PM, Bogdan-Andrei Iancu <[email protected] <mailto:[email protected]>> wrote:

    When OpenSIPS handles the SIP messages carrying SDP (typically
    INVITE request and 200 OK reply), OpenSIPS will communicate with
    rtpengine and update the SDP with the new IP and port. Never
    tested, by AFAIK rtpengine may know to handle SRTP...not sure, you
    may check with the project.

    Regards,

    Bogdan-Andrei Iancu
    OpenSIPS Founder and Developer
    http://www.opensips-solutions.com

    On 11.01.2016 12:00, riko nir wrote:
    Ok. Incase if the media needs to go via rtpengine, then how the
    signaling happens, and how the rtpengine is forwarding the media
    to the other end?

    In case of DTLS, only the DTLS handlshake needs to be taken care
    by the RtpEngine, and the SRTP is handled by some other media
    server, and only the DTLS-key needs to be send to the media
    server. In that case, how can we fetch dtls-key after the DTLS
    handshake?

    Thanks.

    On Mon, Jan 11, 2016 at 3:13 PM, Bogdan-Andrei Iancu
    <[email protected] <mailto:[email protected]>> wrote:

        Hi Riko,

        There are no SDP answers created by opensips - it simply
        changes the received SDP offer and it forwards it to the next
        destination - basically it is doing proxying (performing some
        changes too) of the SDP offers between the end points.

        Best regards,

        Bogdan-Andrei Iancu
        OpenSIPS Founder and Developer
        http://www.opensips-solutions.com

        On 06.01.2016 15:42, riko nir wrote:
        Hi all,

        How is the communication flow happens between opensips and
        rtpengine incase of a call through SIP over websocket?
        When opensips receives a sdp offer from a web-based sip
        client, opensips is creating sdp answer or rtpengine is
        creating sdp anwer or rtpengine just updating ice
        information only in sdp and other than that, media related
        info is created by opensips?

        Thanks.
        Riko


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