I really like the feature on many Android phones where you can turn on Do Not Disturb and phone calls automatically go to voicemail UNLESS they are a "VIP" cont

I really like the feature on many Android phones where you can turn on Do Not Disturb and phone calls automatically go to voicemail UNLESS they are a "VIP" contact (which you set) OR if someone calls back twice in a row relatively quickly. I wish they had more granular controls like this - I use it currently at night when sleeping (so for example my boss or my family can still contact me at 4am if there's a real emergency) but it would be nice if I could do something similar during the daytime but a bit less restrictive.