<html><head><meta http-equiv="Content-Type" content="text/html charset=windows-1252"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Its all software, anything is possible with enough code modification. &nbsp;We don't have a setting to do those things right now, as it doesn't make any sense when there are trivially easy ways to accomplish the same goal without writing any more code.<div class=""><br class=""></div><div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On May 31, 2016, at 12:07 PM, Jn Fri &lt;<a href="mailto:furi@vmtele.com" class="">furi@vmtele.com</a>&gt; wrote:</div><br class="Apple-interchange-newline"><div class="">
  
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    Thank you Michael, <br class="">
    I understand, so isn't it possible to have SDP with m=audio lines
    SAVPF, SAVP and AVP all together ?<br class="">
    Because I set media_webrtc=true, AVP and SAVP lines are replaced
    with SAVPF.<br class="">
    If I had all three m=audio proto lines I was able to manage it with
    Kamailio.<br class="">
    <br class="">
    And back to my first question, is that possible to set different
    ports&nbsp; for m=audio lines in SDP ?<br class="">
    <br class="">
    Jan<br class="">
    <br class="">
    <div class="moz-cite-prefix">On 31.05.2016 17:16, Michael Jerris
      wrote:<br class="">
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      If you don't use some other engine to handle webrtc, then if you
      are calling something that is registered to you over websockets it
      will automatically enable media_webrtc for you. &nbsp;Otherwise you'll
      need some external way of knowing if the endpoint is webrtc or not
      so you can apply the settings properly.
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          <blockquote type="cite" class="">
            <div class="">On May 30, 2016, at 9:14 AM, Jn Fri &lt;<a moz-do-not-send="true" href="mailto:furi@vmtele.com" class=""></a><a class="moz-txt-link-abbreviated" href="mailto:furi@vmtele.com">furi@vmtele.com</a>&gt; wrote:</div>
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              <div text="#000000" bgcolor="#FFFFFF" class=""> Hello, <br class="">
                <br class="">
                My freeswitch's INVITE sdp offers two m=audio lines.
                (RTP/SAVP and RTP/AVP). <br class="">
                That's OK, because I want it so ;)<br class="">
                <br class="">
                But both use the same audio port number. <br class="">
                Is that possible to change this behavior ? To use
                different audio port numbers for each m=audio line ...<br class="">
                Please check my example below. In SDP from my
                freeswitch, both m-lines have <b class="">m=audio </b><b class="">22284</b>.<br class="">
                <br class="">
                The reason, why I want to change this is WebRTC and
                RTPengine. RTPengine changes this INVITEs to RTP/SAVPF.<br class="">
                And the changed RTP/SAVPF is then not acceptable for
                chrome browsers. Firefox works well (so far).<br class="">
                I already reported this to the RTPengine but they say
                the problem is with INVITE from freeswitch because the
                m-audio lines use the same port.<br class="">
                <br class="">
                My example :<br class="">
                incoming calls -&gt; Media Server (freeswitch) -&gt;
                Kamailio (sip and websocket proxy) -&gt; WebRTP and SIP
                clients <br class="">
                <br class="">
                I have found a feature <b class="">media_webrtc=true</b>
                so I could avoid using rtpengine for webrtc clients
                (that would be really awesome), but then classic sip
                clients are offered only with RTP/SAVPF and most sip
                phones do not know RTP/SAVPF so the calls are rejected
                :(<br class="">
                <br class="">
                <br class="">
                INVITE SDP from freeswitch: <br class="">
                <br class="">
                v=0.<br class="">
                o=SBC 1464589775 1464589776 IN IP4
                &lt;freeswitch-public-ip&gt;.<br class="">
                s=SBC.<br class="">
                c=IN IP4 &lt;freeswitch-public-ip&gt;.<br class="">
                t=0 0.<br class="">
                <b class="">m=audio 22284 RTP/SAVP 8 0 9 3 18.</b><br class="">
                a=rtpmap:8 PCMA/8000.<br class="">
                a=rtpmap:0 PCMU/8000.<br class="">
                a=rtpmap:9 G722/8000.<br class="">
                a=rtpmap:3 GSM/8000.<br class="">
                a=rtpmap:18 G729/8000.<br class="">
                a=rtcp:22285 IN IP4 &lt;freeswitch-public-ip&gt;.<br class="">
                a=crypto:1 AEAD_AES_256_GCM_8
                inline:Q/O+iUzZ9AZLcrADA7w/XcpkmuW6yArr1vsaWc0coTyWUIRLX2qfCA7XDAs.<br class="">
                a=crypto:2 AEAD_AES_128_GCM_8
                inline:mBb/SmBuSQNSm8lC5giUfZMCv0ZYINvsQiX2sw.<br class="">
                a=crypto:3 AES_CM_256_HMAC_SHA1_80
                inline:ahOTNSsdmHLIOBqvUyGyNjd+gDfAE/+jA6w7XwzGWxBMjtzf5akXNvM/OGy0jQ.<br class="">
                a=crypto:4 AES_CM_192_HMAC_SHA1_80
                inline:k7002pXV/SUT7JHhZTYaMV5keUTp1EP57M4rcNZnAoZZzsceTXA.<br class="">
                a=crypto:5 AES_CM_128_HMAC_SHA1_80
                inline:bHcV4E/OnzMkNeaFplPWt4RELILYZeGlifnJNlRV.<br class="">
                a=crypto:6 AES_CM_256_HMAC_SHA1_32
                inline:zJkowU1tc5rQR5BPpg2m3eE97ZqXLFFJc1Agh89XuZynPFMrXhO266+eMZCd2A.<br class="">
                a=crypto:7 AES_CM_192_HMAC_SHA1_32
                inline:2DwGI3UAPsLFBS5sJBsc+pzEsITQwDHCvB0u7pK/XEE3G8swsrw.<br class="">
                a=crypto:8 AES_CM_128_HMAC_SHA1_32
                inline:Jen6Gm56Z+4RTRmfpXTpSpoG5bduyythl1j21a15.<br class="">
                a=crypto:9 AES_CM_128_NULL_AUTH
                inline:Nn83liGQY7eY8LGs9qz/7EoPiHOpRgwY8H7Ts/b5.<br class="">
                a=ptime:20.<br class="">
                <b class="">m=audio 22284 RTP/AVP 8 0 9 3 18.</b><br class="">
                a=rtpmap:8 PCMA/8000.<br class="">
                a=rtpmap:0 PCMU/8000.<br class="">
                a=rtpmap:9 G722/8000.<br class="">
                a=rtpmap:3 GSM/8000.<br class="">
                a=rtpmap:18 G729/8000.<br class="">
                a=rtcp:22285 IN IP4 &lt;freeswitch-public-ip&gt;.<br class="">
                a=ptime:20.<br class="">
                <br class="">
                <br class="">
                <br class="">
                <br class="">
                INVITE SDP from RTPengine :<br class="">
                <br class="">
                v=0<br class="">
                o=SBC 1464589775 1464589776 IN IP4 212.232.17.66<br class="">
                s=SBC<br class="">
                c=IN IP4 &lt;rtpengine-public-ip&gt;<br class="">
                t=0 0<br class="">
                <b class="">m=audio 31836 RTP/SAVPF 8 0 9 3 18</b><br class="">
                a=rtpmap:8 PCMA/8000<br class="">
                a=rtpmap:0 PCMU/8000<br class="">
                a=rtpmap:9 G722/8000<br class="">
                a=rtpmap:3 GSM/8000<br class="">
                a=rtpmap:18 G729/8000<br class="">
                a=ptime:20<br class="">
                a=sendrecv<br class="">
                a=rtcp:31837<br class="">
                a=setup:actpass<br class="">
                a=fingerprint:sha-1
                11:76:2D:2A:F7:0D:5A:23:9D:F6:0C:E7:4C:DF:1E:CB:BF:5D:76:4F<br class="">
                a=ice-ufrag:NauDcjVU<br class="">
                a=ice-pwd:AiHk6LF4tE0GElyFMWtLeod1wH<br class="">
                a=candidate:cE0FGbXWIfwj6OGD 1 UDP 2130706431
                &lt;rtpengine-public-ip&gt; 31836 typ host<br class="">
                a=candidate:cE0FGbXWIfwj6OGD 2 UDP 2130706430
                &lt;rtpengine-public-ip&gt; 31837 typ host<br class="">
                <b class="">m=audio 31866 RTP/SAVPF 8 0 9 3 18</b><br class="">
                a=rtpmap:8 PCMA/8000<br class="">
                a=rtpmap:0 PCMU/8000<br class="">
                a=rtpmap:9 G722/8000<br class="">
                a=rtpmap:3 GSM/8000<br class="">
                a=rtpmap:18 G729/8000<br class="">
                a=ptime:20<br class="">
                a=sendrecv<br class="">
                a=rtcp:31867<br class="">
                a=setup:actpass<br class="">
                a=fingerprint:sha-1
                11:76:2D:2A:F7:0D:5A:23:9D:F6:0C:E7:4C:DF:1E:CB:BF:5D:76:4F<br class="">
                a=ice-ufrag:YxCyPhQV<br class="">
                a=ice-pwd:2vYt8YaMhIp2DSLPeYOKDqqBX0<br class="">
                a=candidate:cE0FGbXWIfwj6OGD 1 UDP 2130706431
                &lt;rtpengine-public-ip&gt; 31866 typ host<br class="">
                a=candidate:cE0FGbXWIfwj6OGD 2 UDP 2130706430
                &lt;rtpengine-public-ip&gt; 31867 typ host<br class="">
                <br class="">
              </div>
            </div>
          </blockquote>
        </div>
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