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<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Hi Folks,</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">I am experiencing an issue where remote SDP can not be set due to receiving 2 SDP answers.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">The setup is webrtc (sipjs)->Freeswitch->SIP Termination, where a call is originated by the <a href="http://sipjs.ua"><span style="color: #3e81de">sipjs.ua</span></a> calling a public number. As soon as the remote party answers the call, the call drops due to not being able to gather the remote media path.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Worth mentioning is that only some calls fail where the majority are successful. The difference between the successful and the unsuccessful ones is in the SDP messages. The good one receive ‘answer' for UDP/TLS/RTP/SAVPF followed by ‘offer’ for RTP/SAVPF.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">The one that fail are 2 SDP answers.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(62, 129, 222);"><span style="color: #333333">I have discussed the topic on the webrtc group: <a href="https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/discuss-webrtc/IwOxU-IcxdY/Hfn02tEfCwAJ"><span style="color: #3e81de">https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/discuss-webrtc/IwOxU-IcxdY/Hfn02tEfCwAJ</span></a></span></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(62, 129, 222);"><span style="color: #333333">Also raised this in the sipjs forum: <a href="https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!topic/sip_js/ABy98d3Kwu8"><span style="color: #3e81de">https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!topic/sip_js/ABy98d3Kwu8</span></a></span></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">On both it has been suggested that this is either a setting in Freeswitch or its incorrectly sent SDP messages.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Freeswitch version: 1.6.14</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">SIP.js: 0.7.5</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Browser: Chrome - latest version</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">I would appreciate any help on this as its causing me some random call drops affecting the service.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Here are the logs as well:</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(62, 129, 222);"><span style="color: #333333">FS log: <a href="http://pastebin.com/UQW6AdcQ"><span style="color: #3e81de">http://pastebin.com/UQW6AdcQ</span></a></span></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(62, 129, 222);"><span style="color: #333333">Chrome log: <a href="http://pastebin.com/Crk69MrS"><span style="color: #3e81de">http://pastebin.com/Crk69MrS</span></a></span></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(62, 129, 222);"><span style="color: #333333">webrtc-internals-log: <a href="http://pastebin.com/BVr7v4EB"><span style="color: #3e81de">http://pastebin.com/BVr7v4EB</span></a></span></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Any ideas/suggestions/comments are welcome.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Thank you in advance.</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51); min-height: 16px;"><br /></p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Regards,</p>
<p style="margin: 0px; line-height: normal; font-family: 'Helvetica Neue'; color: rgb(51, 51, 51);">Georgi Nikolaev</p>
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