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The big difference is that if you send a packet with a spoofed source IP, the reply won't get to you. The phone system allows you to set up a full two-way chan
by thedufer 5y ago
The big difference is that if you send a packet with a spoofed source IP, the reply won't get to you. The phone system allows you to set up a full two-way channel without the receiving party ever needing the correct identifier for the caller.