My various spammy callers have recently taken to leaving voicemails that don’t say anything—either complete silence or the sound of people chattering in the background (I got curious and listened to a couple). IIRC the law prohibits callers from leaving automated messages, but it would be awfully hard to prove these are automated even if you could prove who was calling. One of these silent messages was 48 seconds long! Overkill much?
I’m so glad I run everything through Google Voice‘s transcriptions, so I can see at a glance that it was a spam/phish caller who’s trying to trick me into calling back. I highly recommend an automated transcription service to anyone else who gets far more illegitimate calls than legit ones.
For example, looking at the last month, my legit calls were ~5-10% of all attempted calls—including ones where I was the caller, not the callee. People often look at me like I have 12 heads when I say I never answer unknown numbers. I think it would be crazy for me to answer them, given the givens. Legit callers leave real voicemails or texts, or contact me by other means.