Running 3CX Pro version 15.5.15502.6, and I'm trying to roll out secure SIP to our users. I noticed that the call record button is disabled on the softphone when a caller goes through a digital receptionist and then a call queue to reach the user. Doing any one of the below mitigates the issue, so I don't think it's an issue with secure SIP.
- Calling the user directly
- Calling the call queue directly
- Going through a digital receptionist -> ring group -> user
- Disabling secure SIP
