this post was submitted on 09 Jun 2025
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See, for me, if you call me and don't leave a voicemail, I'm going to assume it was unimportant (or spam) and I won't call back. Businesses, which are most likely going to an unknown number, should leave a voicemail if they want any action on my part. I mostly don't want businesses texting me because they tend to spam the fuck out of you. And I'm sure as fuck never going to pick up the phone for an unknown number.
Recently, I've been getting calls I'm pretty sure are spam. They are all from different numbers, but all of the area codes are from where I got my phone number, which is quite far from where I live now. Additionally, they all do leave voicemails, but each and every one is exactly thirty seconds of silence.
Spam or not, I can't figure out the point.
They spoof a number close to your number to increase the chance you pickup, they don't know you moved.
I'd bet the silence calls are to determine if a phone number is active.
I definitely know about the spoofing - that's what made me figure it was spam initially.
The waiting for a voice response makes sense, but I've never encountered a system that didn't at least say some form of "hello." Not this persistent of one, anyway.
Thanks!
Interesting, one of the recent voicemails I received was a very high-quality voice courtesy one of everyone’s favorite text-to-speech companies (perhaps ElevenLabs)
Wonder if it’s possible they were trying to route on the fly, if they had such a low latency system that they’re able to wait for potential victims to say hello before instantly transferring to a human scammer.