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Difference between 2G and 3G?

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    Most networks now offer a 3G service, but I was wondering what exactly was the difference between 2G and 3G service. Does 3G actually offer any more than 2G, or is the only difference the speed of data transfer?

    Also, to receive 3G signals, is all that is requiered is a 3G phone, or is the SIM card different also?

    I used to have a 3 Phone about 5-6 years ago when the first ones came out, but it was crap so I sent it back, and never quite got the gimmick.

    Cheers.
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    3G offers video calling and something else which i can't remember atm. It is also faster like you say.
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    faster data and video calls in an area where you have3 g services, that said for a lot of simple net use EDGE or 3 g makes little difference in data though the more intensive your data use the better a proper 3 g connection is.
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    When i turn the 3G on my phone, the internet is probably near enough the same speed as the internet I have at home. I only turn it on when using the internet though as it really drains your battery.
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    Yep, higher data speed and video calling, thats it. And for the Telco's, more capacity for calls. Thats it. Some networks require a different SIM to use 3G (O2 being one) and some don't. All depends. Personally, as someone who's been on multiple data usage level warnings from O2, I couldn't be without 3G!
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    Yeah, tbh get into the 3G scene now, its well under way alot of action with the net on phones these days!
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    (Original post by Minardi)
    Yep, higher data speed and video calling, thats it. And for the Telco's, more capacity for calls. Thats it. Some networks require a different SIM to use 3G (O2 being one) and some don't. All depends. Personally, as someone who's been on multiple data usage level warnings from O2, I couldn't be without 3G!
    I thought all O2 sims were 3G now?
    I know the one I got in my Samsung g600 (which isn't 3G) is a 3G sim.
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    (Original post by WelshBluebird)
    I thought all O2 sims were 3G now?
    I know the one I got in my Samsung g600 (which isn't 3G) is a 3G sim.
    Yeah, but the old ones are not compatible, wheras on soem networks they are.

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