What is a "3g 850mhz Phones"? The Most Authoritative Explanation.

What is a "3g 850mhz Phones"? The Most Authoritative Explanation.

Does the 850 support 3G on 900MHz?

The international version does not support 3G on 850 - there is a special version for Telstra Australia and various USA variants (captivate and vibrant) that do. The Asian version does not. The 850 variants then in turn do not support 3G on 900MHz like used by Optus in Australia. The only phone I know of that handles all bands is the iphone.

Does the Telstra 850 support 3G?

The international version does not support 3G on 850 - there is a special version for Telstra Australia and various USA variants (captivate and vibrant) that do. The Asian version does not.

What band does AT&T use for 3G?

In the United States, some carriers, in my case i have a contract with AT&T, use 3G only in the 850Mhz Band, but if you bought your Phone Unlocked and like me it came from Europe, the 850Mhz Band is disabled, so you just have to Enable the 850Mhz Band Frequency in order to be able to pick up the 3G Frequency of you Carrier here in the US.

What is the difference between 3G and 2G?

2G, 2nd generation mobile phones, use either the GSM codec or CDMA codec. CDMA in Australia (Orange, Telstra) was on the 850MHz frequency which is now used for 3G. Most new phones come with quad-band GSM, which supports 850, 900, 1800, and 1900MHz. 2G is an old technology and provided a fall back position when 3G and 4G coverage was unavailable.

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