Hi list, I am able to use FS with SSLv23 with Blink Pro on Mac OS, but that’s about it. I get the following error if I connect with any other device (Bria iOS, Yealink phone, Join Softphone): TLS setup failed (error:00000001:lib(0):func(0):reason(1)) I came across this thread: http://freeswitch-users.2379917.n2.nabble.com/FS-with-SSL-TLS-issues-td75877... but it doesn’t seem to apply to my scenario. I am using a commercial certificate. My devices connect to a domain which has an SRV record which points to itself on the SSL port. SSL host is an A record and matches the CN in the certificate. Server cA check is even turned off on certain phones. The only error I get on my Yealink phone is this: Nov 14 11:04:03 SIP [524]: SDL <6+info > [000] SSL_connect (read done) Nov 14 11:04:03 SIP [524]: SDL <3+error > [000] SSL ERROR Nov 14 11:04:03 SIP [524]: SDL <3+error > [000] SSL_connect error I would appreciate to know how I could debug this further. Or if you have any clue at what may be going on. Thanks! Emrah