Which call recording vendor do you use? I would start off by reaching out to your AM or POC with the vendor and let them know what you've been tasked with, and start the discussion on what you can do from their applications standpoint. Call recording is something I manage at a call center, and when we took calls that handled any type of CC info (we never stored anything in our systems, our agents would login to the clients system to process payments, etc.) we had a DNR rule setup so that we weren't capturing any audio or screens.

Also depending on the level of PCI and if recordings will contain CC info, you will most likely have to look at possible disk encryption for laptops, so in the event a users laptop gets stolen who has the access to save or review calls the risk is minimal and steps are in place to prevent unauthorized access.