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Re: [opensource-62] mobile network question

From: Duplicate A.
Sent on: Monday, July 15, 2013 5:53 AM
Going back to your original question...

On 7/11/2013 2:18 PM, mowgli wrote:
if a phone has the following description is it misleading if it doesnt really get gsm 3G or am i just dumb?  i guess both is a possible permutation too.

Business class data: GPRS, GSM, HSPA+

I think the answer is 'yes' but not too bad.  Your question statement is actually sort of worse.

GSM is 2G. GSM data was initially circuit switched (think dial up modem or fax- no ip, just dial a number and connect.)

GPRS is an add-on feature to GSM. It adds IP packet data. Think DSL.It's not a perfect analog, but it's close.

The evolutionary step from GSM to 3G is WCDMA.  GSM and WCDMA were designed to coexist.

HSDPA, HSPA, and HSPA+ are all later options to WCDMA and part of that standard.

So the answer seems to be that it does 2G and 3G data and voice, and it's a poorly crafted or edited statement.
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Rich Osman;  POB 93167; Southlake, TX 76092 (Near DFW Airport) ARS: N1OZ

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