TLS BYE VVX 300 sending BYE message in clear text

Hello,

I am trying to get TLS working with the VVX 300. I have Yealink devices using TLS on the same service without issue. I can originate a call from the VVX using TLS and establish the call without issue. However, when I hang up the on the VVX, it sends the BYE message in clear text.

Any ideas are apreciated.

-PT