Why IP?
Because it's cheaper for the service provider, that's why. And it it's cheaper for the service provider, it's cheaper for the end user.
VOIP means they don't have to give you a dedicated line for sending your call. Your call is already multiplexed over the air (What did you think the M in TDMA and CDMA stood for?). So why not multiplex it more over the wired portion of the call? Why do they push digital multiplexing algorithms so much? Because it's cheaper!
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Why IP? Because it's cheaper for the service provider, that's why. And it it's cheaper for the service provider, it's cheaper for the end user. VOIP means they don't have to give you a dedicated line for sending your call. Your call is already multiplexed over the air (What did you think the M in TDMA and CDMA stood for?). So why not multiplex it more over the wired portion of the call? Why do they push digital multiplexing algorithms so much? Because it's cheaper!
I've seen 3g cell phones that will transfer at something like 256 kb / sec. Streaming 2 way video, et cetera. A tad faster than 56k.
It looks just like a..........Big Boy! Check for Osama!