This is one of those things I would think should have just been baked in to the the software from the beginning. People working 9-5 don't want business calls during dinner. It would be great if users could set do not disturb hours to accommodate their schedules. And if possible I'd like this feature to go live tomorrow. It's way more important than AI!
Essentially, just make phone ring settings like the calendar availability and forward to voicemail automatically if a call comes in outside of those hours.
Better yet, let users chose to make phone ring settings mirror calendar availability or set them independently.