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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Trying to use early media with prack support and rtpengine without success.<o:p></o:p></p>
<p class="MsoNormal">INVITE(no SDP)<span style="font-family:Wingdings">à</span><o:p></o:p></p>
<p class="MsoNormal">183(SDP)<span style="font-family:Wingdings">ß</span><o:p></o:p></p>
<p class="MsoNormal">PRACK(SDP)<span style="font-family:Wingdings">à</span><o:p></o:p></p>
<p class="MsoNormal">200ok(no SDP)<span style="font-family:Wingdings">ß</span><o:p></o:p></p>
<p class="MsoNormal">ACK(no SDP)<span style="font-family:Wingdings">à</span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Looking at the code it does not seem to allow for PRACK in the methods it supports.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the rtpengine_manage code…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> if (!(method==METHOD_INVITE || method==METHOD_ACK || method==METHOD_CANCEL<o:p></o:p></p>
<p class="MsoNormal"> || method==METHOD_BYE || method==METHOD_UPDATE))<o:p></o:p></p>
<p class="MsoNormal"> return -1;<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">In the rtpengine_answer code…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">rtpengine_answer1_f(struct sip_msg *msg, char *str1, char *str2)<o:p></o:p></p>
<p class="MsoNormal">{<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> if (msg->first_line.type == SIP_REQUEST)<o:p></o:p></p>
<p class="MsoNormal"> if (msg->first_line.u.request.method_value != METHOD_ACK)<o:p></o:p></p>
<p class="MsoNormal"> return -1;<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"> return rtpengine_rtpp_set_wrap_fparam(msg, rtpengine_answer_wrap, str1, 2, OP_ANSWER);<o:p></o:p></p>
<p class="MsoNormal">}<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Returns -1 no matter what function you use.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have checked code all the way up to 5.3 and on the master.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I may be looking at this wrong and it is supported, but it doesn’t look like it.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Could you please advise if this is a oversight or if there is a specific reason it is not included.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Chris<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<div style="margin-bottom: 10px;"><strong>Chris Martineau</strong> <span style="color: #808080;">
| Senior Telephony Engineer</span></div>
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<td><img style="border: none;" src="https://semafone.com/resources/signature/2017/video.png" alt="vid" width="20" height="20"></td>
<td width="5"> </td>
<td style="vertical-align: middle;" valign="middle"><strong><a style="color: #de1921; text-decoration: none;" href="https://www.semafone.com/our-solution/how-it-works/demo/">See how Semafone works</a></strong></td>
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<td><img style="border: none;" src="https://semafone.com/resources/signature/2017/blog.png" alt="b" width="20" height="20"></td>
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<td style="vertical-align: middle;" valign="middle"><a style="color: #5bccf5; text-decoration: none;" href="https://semafone.com/media-centre/blog/"><strong>Read our insightful blog</strong></a></td>
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<td style="vertical-align: middle;" valign="middle"><strong>Switchboard:</strong> 0845 543 0822 /
<strong>Mobile:</strong> </td>
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<td style="vertical-align: middle;" valign="middle"><strong><a style="color: #4d4d4d; text-decoration: none;" href="mailto:Chris.Martineau@semafone.com">Chris.Martineau@semafone.com</a></strong></td>
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semafone.com</a> / <strong>Twitter:</strong> <a style="color: #4d4d4d; text-decoration: none;" href="https://twitter.com/semafone">
@semafone</a> / <strong>LinkedIn:</strong> <a style="color: #4d4d4d; text-decoration: none;" href="https://uk.linkedin.com/company/semafone">
Semafone</a></td>
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<td style="vertical-align: middle;" valign="middle"><strong>SEMAFONE</strong>, Pannell House, Park Street, Guildford, Surrey GU1 4HN</td>
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