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Blocking spam calls is not very helpful because the numbers are inevitably spoofed and can be spoofed differently for the next call with near zero effort on beh

by TimPC 4y ago

Blocking spam calls is not very helpful because the numbers are inevitably spoofed and can be spoofed differently for the next call with near zero effort on behalf of the spammer. The problem is the phone system has inherent poor design that causes all sorts of issues and the major players aren't really interested in fixing it but at best are willing to apply mediocre patches.

Workaccount2 4y ago
We had a lady calling our company (the hallway phone specifically) for a week demanding answers/threatening lawsuits about why we keep trying to sell her pills. We make commercial and government electronics. She refused to understand that the phone number on her screen is not the number calling her.
titzer 4y ago
You're telling me that a connection-oriented system with a volume a billionth of the internet can't keep logs of who initiates a connection for 5 minutes? Oh, yeah.
- seoaeu 4y ago
  It does keep a log… of caller IDs. The problem isn’t the volume of data, it is that the system isn’t setup to authenticate callers so you can’t tie a spam call to any persistent identity to block
  - nobody9999 4y ago
    >It does keep a log… of caller IDs. The problem isn’t the volume of data, it is that the system isn’t setup to authenticate callers so you can’t tie a spam call to any persistent identity to block Except the system is set up to authenticate callers[0] and that's been in place (at least in the US) for almost a year. That it hasn't been as effective as it should be is another issue, but the technology exists and is (or should be) in place as specified by the law. [0] https://www.fcc.gov/call-authentication https://www.fcc.gov/call-authentication
  - titzer 4y ago
    SMTP isn't authenticated either, and is by many measures way looser than the telephone system (which was built around managing physical wires for almost a century), and yet spam filtering has gotten pretty good?
- kube-system 4y ago
  The CNAM field in phone systems is a lot like the “from” field in an SMTP message, and the “source ip” in a IP packet. The sender can just set it to whatever they want.
JTon 4y ago
Yeah, this is the most aggravating part of it. I've had people call me and ask why I called them (I didn't my number was spoofed). I tell them I didn't call, and invariably they don't believe me. Side note, I do not recommend trying to explain spoofing to random strangers. It doesn't help

by TimPC 4y ago

Workaccount2 4y ago

We had a lady calling our company (the hallway phone specifically) for a week demanding answers/threatening lawsuits about why we keep trying to sell her pills. We make commercial and government electronics. She refused to understand that the phone number on her screen is not the number calling her.

titzer 4y ago

You're telling me that a connection-oriented system with a volume a billionth of the internet can't keep logs of who initiates a connection for 5 minutes? Oh, yeah.

seoaeu 4y ago
It does keep a log… of caller IDs. The problem isn’t the volume of data, it is that the system isn’t setup to authenticate callers so you can’t tie a spam call to any persistent identity to block
- nobody9999 4y ago
  >It does keep a log… of caller IDs. The problem isn’t the volume of data, it is that the system isn’t setup to authenticate callers so you can’t tie a spam call to any persistent identity to block Except the system is set up to authenticate callers[0] and that's been in place (at least in the US) for almost a year. That it hasn't been as effective as it should be is another issue, but the technology exists and is (or should be) in place as specified by the law. [0] https://www.fcc.gov/call-authentication https://www.fcc.gov/call-authentication
- titzer 4y ago
  SMTP isn't authenticated either, and is by many measures way looser than the telephone system (which was built around managing physical wires for almost a century), and yet spam filtering has gotten pretty good?
kube-system 4y ago
The CNAM field in phone systems is a lot like the “from” field in an SMTP message, and the “source ip” in a IP packet. The sender can just set it to whatever they want.

JTon 4y ago

Yeah, this is the most aggravating part of it. I've had people call me and ask why I called them (I didn't my number was spoofed). I tell them I didn't call, and invariably they don't believe me. Side note, I do not recommend trying to explain spoofing to random strangers. It doesn't help