Setting to auto generate unique Audio Conference Calling participant code

I have a law practice that deals with super sensitive client conversations and HIPAA communications.

The audio conference call feature has a fixed number with a fixed participant code to access. I know this can be reset through the portal, but I would like to request a setting that automatically resets the the participant code after each use.

If a past client, or anyone else, has the fixed participant they could theoretically listen in on other clients future calls which exposes any ring central users who owe a duty of confidential to huge liability.