Do I need a 3G sim card to use with a 3G cellphone?

emiko08 · Postby **emiko08** » Tue, 13 Dec 2005 3:02 pm

this sound stupid. but i am really clueless. :???:

do i need a 3G sim card to use with a 3G cellphone? or will a normal sim card will do work with a 3G cellphone??

i have to make sure before i buy the phone. as the phone is from Japan and it is 3G. thanks! :wink:

Bremen · Postby **Bremen** » Tue, 13 Dec 2005 3:11 pm

emiko08 wrote:this sound stupid. but i am really clueless.

do i need a 3G sim card to use with a 3G cellphone? or will a normal sim card will do work with a 3G cellphone??

i have to make sure before i buy the phone. as the phone is from Japan and it is 3G. thanks!

So long as the phone ALSO supports GSM in addition to whatever 3G standard it uses, you'll be fine. But you won't be able to use 3G features.

As far as i know, very few japanese phones support GSM. Why not tell us the exact model of the phone you have?

emiko08 · Postby **emiko08** » Wed, 14 Dec 2005 12:04 am

Bremen wrote:So long as the phone ALSO supports GSM in addition to whatever 3G standard it uses, you'll be fine. But you won't be able to use 3G features.

As far as i know, very few japanese phones support GSM. Why not tell us the exact model of the phone you have?

oh. the phone is actually unlocked.

many Vodafone phones are unlocked.

riversandlakes · Postby **riversandlakes** » Wed, 14 Dec 2005 1:03 am

Yes, you can.

Though I hope you know what entails there - Japan uses the CDMA network, unlike most of the world on either of the 4 GSM bands. A CDMA phone cannot function in the GSM network and vice-versa.

emiko08 · Postby **emiko08** » Wed, 14 Dec 2005 9:31 am

riversandlakes wrote:Yes, you can.

Though I hope you know what entails there - Japan uses the CDMA network, unlike most of the world on either of the 4 GSM bands. A CDMA phone cannot function in the GSM network and vice-versa.

yes/ i know Japan uses CDMA network. i come from Japan. lol. O:)

but i am glad that the 3G phone can be used with normal sim card. :cool:

Bremen · Postby **Bremen** » Wed, 14 Dec 2005 12:12 pm

emiko08 wrote:
yes/ i know Japan uses CDMA network. i come from Japan. lol.
but i am glad that the 3G phone can be used with normal sim card.

ONLY if it also supports GSM!!! Make sure your phone does!

emiko08 · Postby **emiko08** » Wed, 14 Dec 2005 2:10 pm

Bremen wrote:ONLY if it also supports GSM!!! Make sure your phone does!

yes. it support GSM & CDMA

thanks so much for the help!

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Do I need a 3G sim card to use with a 3G cellphone?

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