I have noticed that near to 100% of my inbound scam callers when you pick up the line and announce (“Good afternoon, XYZ company. This is Joe”) that there is silence, a “ploop” sound (don’t know what word to use to describe it) and then the scammer is connected.
A quick google implies that the sound is the asterisk teleconference connection sound, telling you that you have been dropped into a conference room. I don’t use teleconferencing so I have no experience there. If my research is incorrect, perhaps someone could help there.
It occurs to me that if you could detect that sound, that it would be trivial to build a filter that would block all that use that method. (Or redirect them to Lenny!)
Does anybody know if there is a “detector” for that specific sound?
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