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I remember when cross-oceanic long distance calls required both parties to shout as loud as they could into the phone -- and often still not be heard well enoug

by bane 6y ago

I remember when cross-oceanic long distance calls required both parties to shout as loud as they could into the phone -- and often still not be heard well enough to make out what they were saying. Modern IP telephony often has very high quality voice reproduction (my wi-fi to wi-fi Fi calls sound fantastic), in exchange for some timing issues. Echoes usually get solved in software (usually), and dropouts seem to be the main complaint. In exchange, my wife can call her family in South Korea for approximately nothing, using the same data backbone as we use to watch movies and read web pages.

justicezyx 6y ago
You can have ip over time multiplexing data link layer, like the IP over ATM. I believe they were still used in the core voice networking. IP won because they are more flexible, and open. And the Internet cement the win because of that. That's way planning ahead too far works less and less successful for bigger and bigger project. Too much dynamic is embed in the long wiring process. It becomes impossible to have a plan work out correctly.