4 ms·

The signaling data includes the real origin. CID is convenience data provided by the originator. The telcos wouldn’t use it for anything important, like billing

The signaling data includes the real origin. CID is convenience data provided by the originator. The telcos wouldn’t use it for anything important, like billing.

rdtsc 8y ago
> The signaling data includes the real origin Anyone can set up a bunch Asterisk or Freeswitch servers anywhere in the world and use VOIP. How does it know where the "real" origin is.
- aparks517 8y ago
  The origin within the SS7 network. Someone has to pay the bill ;)