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I thought it wasn't all just data. Don't some cell networks still have circuit-switched voice and packet-switched data?
by ambition 18y ago
I thought it wasn't all just data. Don't some cell networks still have circuit-switched voice and packet-switched data?
- wmf 18y agoYeah, like all of them AFAIK. And packet-switched voice isn't automatically cheaper than circuit-switched.
- elai 18y agoCurrently telecom is all IP based. Telcos have a circuit switched system at the last mile for backward compatibility and profit reasons, but from your local CO to the terminating call CO is IP based. The telcos also own the internet connections as a tier one providers, so most of it is privately routed. But yeah, the circuit switched system still exists only for backward compat. for the existing system. Cost for call routing has gone down significantly for telcos ever since the 1990s. (Some shithole countries do not apply.)