I am from the security operations team.
I worked on several incidents related to social engineering that originated from calls. Plus, people are giving away sensitive info to untrusted callers.

I think we need a security feature that data mines such transcripts and senses the context to see if they include confidential info or info that sounds like a scam. Then generate an alert for the security and IT team. This would help prevent many social engineering attempts, which initially start with failure and then end up being successful. This can be a useful feature to generate revenue as it is to detect insider threats. Insider threat detections is a very useful topic these days.