My previous post may have suggested that the TLS/SRTP was not working. Where in fact, the TLS works like a charm. The problem comes in when I require SRTP only on the phones. When SRTP s turned off it works great, and so does TLS. I've been trying to understand how the voice part of the call is setup using SRTP. When I go through the logs, I don't see anything that says that SRTP failed anywhere. I'm pretty sure it's somewhere in my configuration. In Asterisk I had to define the transport mechanism of tls and encryption=yes to make it supposed to work. But then I never got it working there either, the difference with Asterisk is that it was showing SRTP as failing, but there's a bug causing that so it was pretty much a brick wall for me. Am I supposed to do something under the user profile or somewhere else where that call is encrypted using SRTP? I followed the TLS and SRTP guides to do the setup. Any help on this would be greatly appreciated. As with any problem, it's consuming my life until I can sort it out. Thanks so much ahead of time, Mitch