<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hello List,<div class="">Thanks to the help provided by Stanislav, I learned of issue #9113, <span style="color: rgb(0, 105, 217); text-decoration: underline;" class=""><a href="https://freeswitch.org/jira/si/jira.issueviews:issue-html/FS-9113/FS-9113.html" class="">https://freeswitch.org/jira/si/jira.issueviews:issue-html/FS-9113/FS-9113.html</a>, which seems to be related to the issues I have been experiencing with FreeSWITCH, TLS and failed call setups.</span></div><div class=""><span style="color: rgb(0, 105, 217); text-decoration: underline;" class="">Coincidentally, or not, the fix pushed on that issue was aligned with whole months where I did not experience any TLS issues. Calls were going through fine, until all of a sudden they started failing again. This is on 2 distinct servers running a load balanced FS setup, and using Yealink phones.</span></div><div class=""><span style="color: rgb(0, 105, 217); text-decoration: underline;" class=""><br class=""></span></div><div class=""><font color="#0069d9" class=""><u class="">To sum up, here is what is going on.</u></font></div><div class=""><font color="#0069d9" class=""><u class="">From the Yealink, calls with TLS work if I don't use SRTP.</u></font></div><div class=""><font color="#0069d9" class=""><u class="">From the Yealink, calls crash if I use TLS and SRTP.</u></font></div><div class="">From my laptop softphone, calls only crash sometimes if I use TLS and SRTP.</div><div class=""><br class=""></div><div class="">How can I debug the TLS session on the FreeSWITCH side to see what happens with the TLS thread? I don't mean packet capture.</div><div class=""><br class=""></div><div class="">I have a feeling that the packet size is too large and doesn't make it to the FS box intact after the 407 Proxy Required is received by the client.</div><div class=""><br class=""></div><div class="">Here is the log for the Yealink:</div><div class=""><a href="http://pastebin.com/smKP286x" class="">http://pastebin.com/smKP286x</a></div><div class=""><br class=""></div><div class="">Your lights would be so appreciated, I'm losing my mind over this.</div><div class=""><br class=""></div><div class="">Best,</div><div class="">Emrah</div></body></html>