Ask HN: Why Can't Phone Carriers Stop Spam Calls?

Re:Ask HN: Why Can't Phone Carriers Stop Spam Calls? by cascom on Thursday June 07, 2018 @12:42PM (#17257552)

I guess I'm just curious how and where spam callers enter the telco system, and why they are so difficult to stop...

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Re:Ask HN: Why Can't Phone Carriers Stop Spam Calls? by Rjevski on Saturday June 09, 2018 @02:07AM (#17271777)

The PSTN is like a worldwide message queue with no authentication what so ever. Anyone can enter from anywhere in the world and spoof any number they want, even those that can’t potentially exist.

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Re:Ask HN: Why Can't Phone Carriers Stop Spam Calls? by icedchai on Thursday June 07, 2018 @12:46PM (#17257589)

Have you heard of VOIP? Anyone, literally anyone, can sign up for a VOIP phone number from anywhere in the world. They might get "stopped" after a few hundred complaints, but that isn't much of an impediment...

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