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<p class="MsoNormal">Greetings all,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have been configuring a FreeSWITCH / FusionPBX system to do TLS and SRTP.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I configure it to do srtp in the outbound route, the SDP produced looks like:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">o=FreeSWITCH 1352745516 1352745517 IN IP4 10.16.0.131<o:p></o:p></p>
<p class="MsoNormal">s=FreeSWITCH<o:p></o:p></p>
<p class="MsoNormal">c=IN IP4 10.16.0.131<o:p></o:p></p>
<p class="MsoNormal">t=0 0<o:p></o:p></p>
<p class="MsoNormal">m=audio 22222 RTP/SAVP 9 0 8 3 101 13<o:p></o:p></p>
<p class="MsoNormal">a=rtpmap:101 telephone-event/8000<o:p></o:p></p>
<p class="MsoNormal">a=fmtp:101 0-16<o:p></o:p></p>
<p class="MsoNormal">a=crypto:1 AES_CM_128_HMAC_SHA1_32 inline:djfKObSYrk0J8pVI1w/OfQBjTYwNgTi80C68VgBB<o:p></o:p></p>
<p class="MsoNormal">a=ptime:20<o:p></o:p></p>
<p class="MsoNormal">m=audio 22222 RTP/AVP 9 0 8 3 101 13<o:p></o:p></p>
<p class="MsoNormal">a=rtpmap:101 telephone-event/8000<o:p></o:p></p>
<p class="MsoNormal">a=fmtp:101 0-16<o:p></o:p></p>
<p class="MsoNormal">a=ptime:20<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is great if I want to support both SRTP and non-SRTP calls; but I cannot figure out how to remove the AVP block so that SRTP is mandatory.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How do I require SRTP?<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">Clint<o:p></o:p></p>
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