<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Greetings,</div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">I use TLS and SRTP on all my extensions. I use openssl and distribute my root certificate to my endpoints. Most of the time my calls work just fine. </div><div class=""><br class=""></div><div class="">Sometimes I receive a repeating error in my log files however, and I don’t know why this is happening. I’m wondering if this is really from the TLS connection for SIP, or an underlying error with SRTP decoding.. I sometimes get this message in the log when things seems to be working fine. Is there a better way to debug exactly why I’m getting this error? Sometimes I have dozens of these errors in a row.</div><div class=""><br class=""></div><div class="">My openssl certificate chain checks out fine with openssl verify command ..</div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Courier; color: rgb(76, 47, 45); background-color: rgb(223, 219, 196);" class="">[2015-10-26 12:23:42] WARNING[9915] tcptls.c: FILE * open failed!</div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Courier; color: rgb(76, 47, 45); background-color: rgb(223, 219, 196);" class="">[2015-10-26 12:23:42] VERBOSE[9916] tcptls.c: == Problem setting up ssl connection: error:14094418:SSL routines:SSL3_READ_BYTES:tlsv1 alert unknown ca</div></div><div style="margin: 0px; font-size: 13px; line-height: normal; font-family: Courier; color: rgb(76, 47, 45); background-color: rgb(223, 219, 196);" class=""><br class=""></div></body></html>