不好意思請問一下
查過美國T-mobile 上網與通話 的頻率 為 2100MHz/1700MHz
在台灣買的9900, 上網查了一下
其 UMTS: 2100/1900/850/800 MHz 或 2100/1700/900 MHz
這樣是指在美國如果用T-mobile的預付卡, 可以用 2100/1700 Mhz嗎?
要特別設定嗎?
感謝
2013-03-12 21:52 發佈
caminti wrote:
不好意思請問一下查過...(恕刪)
美國T-mobile通話頻率(2G Network)為850/1900 MHz
用Blackberry 9900在T-mobile的預付卡通話沒問題
T-mobile 3G Network UMTS splits its downstream/upstream services for 3/3.5/4G between 1700 and 2100 mhz(1700 up and 2100 down). If you only have the 850/1900/2100/800 quad band, it won't work. However, T-Mobile is just done with refarming the 1900MHz spectrum. See http://www.fiercebroadbandwireless.com/story/t-mobile-1900-mhz-hspa-refarming-efforts-reaches-100m-pops-milestone/2012-12-14
BTW, T-Mo is offering SIM or Micro SIM Activation Kit for free now at
http://prepaid-phones.t-mobile.com/prepaid-phones/prepaid-sim-cards
If you have friends in the US, you can ask them to order one for you. Don't go to local T-Mob store, they will charge >$5.
Sorry, too lazy and slow to type in Chinese.
You lead, follow or get out of the way.
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