@boltar (was: Re: @ Ole Juul (was: To opine or not))
"None of the US phone networks AFAIK route calls over the public internet - they used their own dedicated lines."
And therein lies the crux of all the misunderstanding above.
I cut my teeth on SS7. SS7 took in "input", manipulated it for transport, sent it to it's destination, un-manipulated it, and delivered the original input. Video, voice or data. SS7 was nothing more than wire. The mechanics of how it worked weren't observable to the casual observer. The "public internet" has always been routed over dedicated telco lines, starting with Switched56 (which went through SS7).
The TCP/IP protocol suite doesn't care about the wire. Thus my point.
Biting the hand that feeds IT
