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Posted Feb 17, 2012
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I am using a W-CDMA Japanese Phone, does at&t's network support it?

I am using a W-CDMA Japanese Phone, does at&t's network support it?

 

Thank you!!

I am using a W-CDMA Japanese Phone, does at&t's network support it?

 

Thank you!!

I am using a W-CDMA Japanese Phone, does at&t's network support it?

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Feb 17, 2012 11:42:55 AM
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We have no way of knowing whether it would work on AT&T's network without knowing more about the phone. AT&T runs both GSM & UTMS/WCDMA on the 850 & 1900MHz bands. If your phone supports GSM in both those bands, it'll work on AT&T. If it supports UMTS/WCDMA on those bands, then you'll get 3G service. If it supports one but not both of those bands, you'll get some reception but it may be spotty, since AT&T operates on both bands.

We have no way of knowing whether it would work on AT&T's network without knowing more about the phone. AT&T runs both GSM & UTMS/WCDMA on the 850 & 1900MHz bands. If your phone supports GSM in both those bands, it'll work on AT&T. If it supports UMTS/WCDMA on those bands, then you'll get 3G service. If it supports one but not both of those bands, you'll get some reception but it may be spotty, since AT&T operates on both bands.

Re: I am using a W-CDMA Japanese Phone, does at&t's network support it?

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Feb 19, 2012 1:25:14 AM
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With it bring Japanese I know it should have the 2100mhz radio, not sure about the others though which you will need
With it bring Japanese I know it should have the 2100mhz radio, not sure about the others though which you will need
*I am an AT&T employee and the postings on this site are my own and don’t necessarily represent AT&T’s position, strategies or opinions.

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Mar 13, 2012 8:01:54 PM
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Thx for answering my question!

 

The phone I used it said it only works on WCDMA, as you said at&t supports UMTS/WCDMA.

 

So if I buy a at&t 3G sim card, will it work? thx again!!

Thx for answering my question!

 

The phone I used it said it only works on WCDMA, as you said at&t supports UMTS/WCDMA.

 

So if I buy a at&t 3G sim card, will it work? thx again!!

Re: I am using a W-CDMA Japanese Phone, does at&t's network support it?

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Mar 14, 2012 7:23:19 PM
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jimmy203 wrote:

Thx for answering my question!

 

The phone I used it said it only works on WCDMA, as you said at&t supports UMTS/WCDMA.

 

So if I buy a at&t 3G sim card, will it work? thx again!!


Again we do not know.  Yes ATT supports that but on the 850/1900mhz bands.  Does you phone work on these frequencies?  ATT does not have 2100Mhz.

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For service or support questions including existing order status, call:
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jimmy203 wrote:

Thx for answering my question!

 

The phone I used it said it only works on WCDMA, as you said at&t supports UMTS/WCDMA.

 

So if I buy a at&t 3G sim card, will it work? thx again!!


Again we do not know.  Yes ATT supports that but on the 850/1900mhz bands.  Does you phone work on these frequencies?  ATT does not have 2100Mhz.

_____________________

For service or support questions including existing order status, call:
Customer Support: 1-800-331-0500

Information on iPhone unlocking can be found here by copying this link into your browser:
https://www.att.com/deviceunlock/client/en_US/
Posted from my iPhone _____________________________ For service or support questions including existing order status, call: Customer Support: 1-800-331-0500 Information on iPhone unlocking can be found here by copying this link into your browser: https://www.att.com/deviceunlock/client/en_US/

Re: I am using a W-CDMA Japanese Phone, does at&t's network support it?

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Jun 7, 2013 6:17:23 PM
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Edited by cosmolee on Jun 7, 2013 at 9:41:05 PM

I'm considering a phone that supports 2G on 850/1900.  Its specs only state support for 3G on 1700/2100.  The vendor is telling me that because it operates on the 850/1900 frequencies, and AT&T transmits both 2G and 3G over those frequencies, I can expect it to support 3G on AT&T.  Is this true?  

 

Does a phone spec have to specifically state that it supports 3G over specific bands, or can one infer that a phone whose specs show 850/1900 (2G) and capability to support 3G (but not explicitly stated on 850/1900), that it will therefore support 3G on the 850/1900 bands?

 

BTW, the phone in question is the THL W100.

 

Thanks!

I'm considering a phone that supports 2G on 850/1900.  Its specs only state support for 3G on 1700/2100.  The vendor is telling me that because it operates on the 850/1900 frequencies, and AT&T transmits both 2G and 3G over those frequencies, I can expect it to support 3G on AT&T.  Is this true?  

 

Does a phone spec have to specifically state that it supports 3G over specific bands, or can one infer that a phone whose specs show 850/1900 (2G) and capability to support 3G (but not explicitly stated on 850/1900), that it will therefore support 3G on the 850/1900 bands?

 

BTW, the phone in question is the THL W100.

 

Thanks!

Related: I am using a W-CDMA Japanese Phone, does at&t's network support it?

[ Edited ]
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Jul 28, 2013 3:37:14 PM
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FYI, the THL W100 DOES support 3G, HSPA+, in fact, on the AT&T network.  I had no luck on T-Mobile, but thumbs up on the AT&T network.

FYI, the THL W100 DOES support 3G, HSPA+, in fact, on the AT&T network.  I had no luck on T-Mobile, but thumbs up on the AT&T network.

Re: Related: I am using a W-CDMA Japanese Phone, does at&t's network support it?

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Aug 27, 2013 12:30:36 AM
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Hey cosmolee I'm interested in what you think about the w100 - I sent you a pm!
Hey cosmolee I'm interested in what you think about the w100 - I sent you a pm!

Re: Related: I am using a W-CDMA Japanese Phone, does at&t's network support it?

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