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I still think the carriers should just reject calls with obviously fraudulent caller-ids. Call coming from an external interface, but presenting an id owned by

I still think the carriers should just reject calls with obviously fraudulent caller-ids. Call coming from an external interface, but presenting an id owned by the carrier? Reject the connection. And tag the network partner for follow-up investigation.

bluGill 5y ago
You just killed number portability when switching carriers.
- diggernet 5y ago
  Number portability just means that the owner of the number can change. When an ownership change happens, the new owner knows they are the current owner, and can reject calls entering their network claiming to come from that number. Likewise, the former owner knows they no longer own it, and can accept calls from it.
  - bluGill 5y ago
    Then we got nothing because it isn't hard to find a number from a different network to spoof.
nobody9999 5y ago
>I still think the carriers should just reject calls with obviously fraudulent caller-ids. An excellent idea. In fact, that's exactly what the technology discussed (STIR/SHAKEN) in TFA is designed to enable.