<div dir="ltr"><div>Have you tried to insert a "a:sendonly" line in your SDP body when sending it to the caller?<br>If the client receives such line it should not send media...</div><div>Then in the 200Ok you can put an "a:sendrecv" line to establish full media path!</div><div>It's just an idea, I'm not sure if it will really work...</div><div><br></div><div>Patrick</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 22, 2015 at 6:51 AM, Marco Hierl <span dir="ltr"><<a href="mailto:marco.hierl@mrnetgroup.com" target="_blank">marco.hierl@mrnetgroup.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div bgcolor="white" lang="DE" link="blue" vlink="purple"><div><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Hi Răzvan,<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Ok, thanks for your answer! <u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Unfortunately we are offering „early media“ to our customers (call center, radio station, and other companies) and lots of them like to play a free-of-charge announcement in the beginning. But if we started to get cheated, maybe we need to go for this workaround.<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">But apart from that: Mostly the SDP is NOT repeated in the 200OK. Can I call rtpproxy_answer() when receiving the 200OK anyway?<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks and best regards<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> Marco<u></u><u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><u></u> <u></u></span></p><div><div style="border:none;border-top:solid #b5c4df 1.0pt;padding:3.0pt 0cm 0cm 0cm"><p class="MsoNormal"><b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">Von:</span></b><span lang="EN-GB" style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext"> <a href="mailto:users-bounces@lists.opensips.org" target="_blank">users-bounces@lists.opensips.org</a> [mailto:<a href="mailto:users-bounces@lists.opensips.org" target="_blank">users-bounces@lists.opensips.org</a>] <b>Im Auftrag von </b>Razvan Crainea<br><b>Gesendet:</b> Donners</span><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext">tag, 22. Januar 2015 09:36<br><b>An:</b> <a href="mailto:users@lists.opensips.org" target="_blank">users@lists.opensips.org</a><br><b>Betreff:</b> Re: [OpenSIPS-Users] rtpproxy sends rtp from caller to callee before 200OK<u></u><u></u></span></p></div></div><div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><div><p class="MsoNormal"><tt><span style="font-size:10.0pt">Hi, Marco!</span></tt><span style="font-size:10.0pt;font-family:"Courier New""><br><br><tt>From RTPProxy point of view, you can't differentiate between SIP replies, because for all of them you call the same function - rtpproxy_answer().</tt><br><tt>Now, if the client decides to send RTP for 183 (and indeed, I've seen this several times), there's not that much that you can do. Although it's kind of a hack, all I can think of is to not call rtpproxy_answer() for 180/183 and strip the body to prevent the client from sending RTP directly to the callee.</tt><br><tt>I hope this works for you.</tt><br><br><tt>Best regards,</tt><br><br></span><u></u><u></u></p><pre>Răzvan Crainea<u></u><u></u></pre><pre>OpenSIPS Solutions<u></u><u></u></pre><pre><a href="http://www.opensips-solutions.com" target="_blank">www.opensips-solutions.com</a><u></u><u></u></pre><p class="MsoNormal">On 01/21/2015 04:07 PM, Marco Hierl wrote:<u></u><u></u></p></div><blockquote style="margin-top:5.0pt;margin-bottom:5.0pt"><div><div><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Dear all,</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">first of all I need to apologize that I was not able to find information about this issue although I’m sure that I’m not the first one complaining!</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">The caller is sending an INVITE via OpenSIPS and rtpproxy_offer() is executed, callee answers with REPLY 180 or REPLY 183 (with SDP) and rtpproxy_answer() is made. In this status it should be ok that the rtp stream from callee to caller is transferred via the rtpproxy (e.g. for announcements), but I can see that rtp stream from caller to callee is transferred too!!! This means that there can be a conversation without receiving the 200OK and what is the real problem: that means (at least for me) they can talk to each other without any charging !! A timer will stop the conversion after the a while, but this can take time.</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">How can I overcome this problem? How can prevent RTP to be send to the callee before REPLY 200 is received?</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">I can’t find any help in the RTPproxy protocol <a href="http://www.b2bua.org/wiki/RTPproxy/Protocol" target="_blank">http://www.b2bua.org/wiki/RTPproxy/Protocol</a>, nor in the rtpproxy module description in OpenSIPS.</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Thanks for your ideas, and best regards</span><u></u><u></u></p><p class="MsoNormal"><span lang="EN-GB" style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> Marco</span><u></u><u></u></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span><u></u><u></u></p></div></div><p class="MsoNormal"><br><br><br><u></u><u></u></p><pre>_______________________________________________<u></u><u></u></pre><pre>Users mailing list<u></u><u></u></pre><pre><a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a><u></u><u></u></pre><pre><a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><u></u><u></u></pre></blockquote><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div><br>_______________________________________________<br>
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