Is a solution to spam phone calls to answer it?

I've been doing this recently, then setting the phone down and continuing to work. If everyone did this, it would tie up the spammer's resources. I tied up my first spam call today for 30 seconds. The last call I got was in a loop, with a guy saying my pre-authorized PS5 was being shipped, to cancel press 1. I just let it loop for 2 minutes, then it hung up.

It somehow feels better to me than not answering it, listening to it ring, and then getting a missed call notification.