I don't either. I actually have it where the caller ID on my phone shows if it is spam or not. It it is important than they will leave a message.
I have not gotten a single call regarding the COVID vaccine. I have gotten 100s of calls for lower interest rates on credit cards I don’t have, vehicle warranties, Internet and Satellite TV, and even a few for funeral costs. 😳
I did sign up to be notified when the vaccine was available for me early on and I received an email at which time I made my appointment. That’s the only notification or communication I received regarding the vaccine.