That's what they do to me as well. I've gotten several calls spanning the past month and a half or so, never a voicemail or anything. The thing is, during November or December, I got an influx of calls from 8+ different numbers all doing the same thing multiple times a day every single day for weeks. I blocked them all.

They will not stop calling me and don't leave a message. I usually let it ring out but today I immediately sent it to voicemail and I got a message that said "this is Megan" and that's it. It's incredibly obnoxious.