I'm a scam prevention expert and I got scammed

Post by Handytinge » Mon, Apr 11, 2022, 1:29 PM UTC

Nextgrid wrote: post #322

camtarn wrote: post #68

Earlier quoted context omitted.

For the people who are confused: this is a fairly common thing on landlines in some countries, where the telephone exchange doesn't drop the connection until both ends have hung up, or in some cases when the caller hangs up but not the callee. So it's possible to put your own phone down, but when you pick it up again your phone is still connected to the scammer's telephone. If they play a convincing dial tone, then c…

Just FYI, this does not and never applied to mobile phones or any kind of entirely digital (SIP, etc) phone system. Modern "landlines" when used with DSL or fibre are also no longer "true" landlines, instead the modem/router acts as a SIP client and gives you an FXS port to plug an analog phone into. While it could theoretically emulate this behavior (by keeping the SIP session open for a few more seconds), I don't b…

That's not necessarily true. Most smartphones and SIP clients are designed to kill RTP immediately after sending a BYE, but session teardown doesn't _have_ to happen then. There are many scenarios where a BYE would not constitute destruction of the RTP session, and using a dumb analog phone over FXP could easily be one of them.

Post by Handytinge » Mon, Apr 11, 2022, 1:31 PM UTC

josephg wrote: post #320

jameshart wrote: post #160

Earlier quoted context omitted.

Back in the day, folks would have more than one phone in their house. Someone would call and all the phones would ring (or you might turn off the ringers on some of them so only one main phone actually rings). So someone might pick up the phone in the entrance hall and the caller would ask to speak to Becky, and Becky’s mom would yell up the stairs ‘BECKY PHONE’ and then put the receiver back down while Becky runs in…

I saw this sort of thing in american sitcoms as a child, and I was always mildly triggered by it. Here in Australia the landline phone system disconnects as soon as either person hangs up. On the shows they would sometimes hang up the phone, then somebody else picked up a receiver and the call continued?? Phones don't work like that! Go try it on your real phone, and you'll see! It never occurred to me that US phones…

Real phones did work like that in +61 20-30 years ago :).

Re: I'm a scam prevention expert and I got scammed

Re: I'm a scam prevention expert and I got scammed