The other day I was having a bad day and had a call from an unknown number, so I decided to pick up but let them talk first. They just hang up and have not called again.

I don't think it was a good idea to pick up in the first place, but it was curious in the end.

[–] [email protected] 8 points 4 months ago (3 children)

Iirc, that's usually a sign that the robot caller has found a machine on the other end, since most people first respond with some sort of greeting right off the bat.

[–] sukhmel 3 points 4 months ago (2 children)

So, it's not that bad, after all. Maybe should learn me a modem greeting to use instead of "Hello"

[–] [email protected] 4 points 4 months ago

The phrase itself doesn't matter, they are just listening for some indication of human speech at the start of the call.

If nothing is said, then the system believes that it is a machine doing the same thing.

Provided, of course, that their spam system doesn't just starts playing a recorded message anyway.

[–] [email protected] 3 points 4 months ago (1 children)

Just play this sound.

[–] sukhmel 2 points 4 months ago

Yes, that's exactly what I meant

[–] tyler 1 points 4 months ago

nah it's been happening to me lately too. I pick up, say hi, and it immediately hangs up. I'm sure they've sold my number as active now.