Thread: 3g?
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Old 11-12-2006, 06:06 PM   #45 (permalink)
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So that I have my facts correct...let me summarize and pls correct me if I am wrong. See graph below. It's taken from a Cingular presentation. This is for U.S. based carriers.

- UMTS / HSDPA devices or networks will allow you to conduct voice AND data simultaneously. Currently in the states, that's a GSM technology carried by T-Mo and Cingular. The speed is up to 3.6 mbps. The latency is 100-200 ms

- EVDO Rev. A is coming out from Sprint and promises faster speed than Rev. 0 but however won't support true voice AND data transfer simultaneously with playing around with VOiP technology. It's a CMDA technology. The speed is up to 2.4 mbps and latency is 250-350 ms.

Bold 9700 / v5.0.0.296 / at&t