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Old 06-28-2007, 04:09 PM   #1 (permalink)
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Default Tmobile 8800 in South Korea

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Does anyone know or have used sim card by gosim.com in South Korea or Japan?
Because I will be traveling to Korea on business 3 times a year and since they work on the type of network I hoping that it has worked for someone because I dont want to purchase a phone that not going to work.

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Old 06-28-2007, 04:26 PM   #2 (permalink)
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The 8800 will not work in South Korea or Japan.
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Old 06-28-2007, 04:30 PM   #3 (permalink)
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I know that if the phone is not unlocked it will not work in Korea or Japan. I just need to know if a sim card from gosim.com will work if the phone is unlocked.
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Old 06-28-2007, 04:31 PM   #4 (permalink)
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No, it won't.
The 8800 will not work in South Korea or Japan.
It's got nothing to do with the phone being locked or unlocked.
The wireless technology used in those countries isn't supported by the 8800.
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Old 06-28-2007, 04:34 PM   #5 (permalink)
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Ok, thanks for the info.
Do you know a US phone that will?
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Old 06-28-2007, 04:38 PM   #6 (permalink)
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Wirelessly posted (Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0) BlackBerry8830/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/105)

No, I don't. Sorry
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Old 06-28-2007, 05:54 PM   #7 (permalink)
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South Korea uses different wireless technology than the rest of the world WCDMA I think it is, as does Japan. There is no device that I know of that will work in the US, Japan and Korea. Although I have heard the 8707v will work in Japan, it will not work in Korea and is only GPRS capable here in the US.

Your 8800 is GSM and the technologies are incompatible.
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Old 06-28-2007, 07:16 PM   #8 (permalink)
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Default Cell options in Korea and Japan

As stated, the 8800 will not work in either South Korea or Japan due to the cell network used in both countries. There are GSM phones that will work in Japan (3G/3.5G ONLY), but this won't solve your problem.

Your best bet if it's a short-duration trip is to rent a phone at the airport. I know Japan has this service, and I believe Korea does as well.
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Old 06-28-2007, 10:34 PM   #9 (permalink)
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You may use an UNLOCKED BlackBerry 8707g/h/v in South Korea and Japan provided you have international voice and BlackBerry service enabled on your plan. This device operates on the UMTS2100 network, and T-Mobile has a roaming agreement with provider KTF.
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Old 06-29-2007, 07:06 AM   #10 (permalink)
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Quote:
Originally Posted by dc/dc View Post
You may use an UNLOCKED BlackBerry 8707g/h/v in South Korea and Japan provided you have international voice and BlackBerry service enabled on your plan. This device operates on the UMTS2100 network, and T-Mobile has a roaming agreement with provider KTF.
Are you sure about the 8707? Korea is CDMA I thought and the 8707 is GSM. Everything that I have read supports that as well.
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Old 06-29-2007, 07:29 AM   #11 (permalink)
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For sure the 8707 works in Japan and I'm almost positive the 8707 works there also but....I've been there with a blackberry but can't remember the model ( i buy a lot of toys ). I'm going back to Korea shortly and will let you know.....
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Old 06-29-2007, 08:20 AM   #12 (permalink)
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Quote:
Originally Posted by Dubdub View Post
Are you sure about the 8707? Korea is CDMA I thought and the 8707 is GSM. Everything that I have read supports that as well.
You are partially correct. All of South Korea's networks are CDMA 1XEVDO except for one that is iDEN. However, two of the three major providers (SK Telecom and KT Freetel) have overlaid their EVDO networks with UMTS2100 in the major cities.

With that in mind, the 8707 will function there because it supports UMTS2100 in addition to GSM/GPRS 850/900/1800/1900, and both at&t and T-Mobile have roaming agreements with the providers.
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Old 06-29-2007, 09:14 AM   #13 (permalink)
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Here's a handy resource if you want to check into GSM coverage in a country you're travelling to: GSM Operators, Coverage Maps and Roaming Information - Countries/Areas
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