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Jul 16, 2004 ... Originally, the US used only 1900 MHz for its GSM cell phone service. ... complete with network coverage maps, refer to the official GSM Association's website. ... Note that countries with both 900 and 1800 MHz service generally ... WARNING : T-mobile disabled the 850 MHz band in some quad band ...
thetravelinsider.info/roadwarriorcontent/quadbandphones.htm - Cached - Similar

T-Mobile's rollout of UMTS in the US will focus on the 2100/1700 MHz bands. ... had not used GSM previously they had no need to build GSM compatibility into their ... was the first commercial UMTS network—using a pre-release specification, .... Quad-band GSM (850, 900, 1800, and 1900 MHz bands) and tri- band UMTS ...
en.wikipedia.org/.../Universal_Mobile_Telecommunications_System - Cached - Similar

Dec 22, 2008 ... The Neo1973 uses tri-band GSM (900/1800/1900 or 850/1800/1900 MHz) ... According to the GSM-Association there is no GSM in Japan, ... For a breakdown of SIM-only plans, go to Bellen.com ... T-Mobile - Works with Neo1973 using manual GSM commands ... Only GSM networks are compatible with the Neo1973. ...
wiki.openmoko.org/.../Neo1973_compatible_cellphone_providers - Cached - Similar

A T-Mobile SIM card will work in a AT&T phone as long as the AT&T phone is unlocked. .... and mobilink work at 900 MHz, 1800 MHz and1900 MHz frequencies) similarly ..... No, it's not possible because the technology in both is quite different. .... how ever i choice gsm QUAD BAND PHONES so i can switch networks in ...
www.wisegeek.com/what-is-the-difference-between-gsm-and-cdma.htm - Cached - Similar

Oct 25, 2007 ... I would go with T-mobile. They are the only true GSM provider in the USA. ... back to INDIA in few months and am wondering if the GSM technolgy by local ... SHOULD I BE LOOKING IN Treo SPECIFICATION FOR SOME OTHER COMPATIBILITY? .... The Nokia N85 has Quad Band GSM (850-900-1800-1900) and Triband 3G ...
www.esato.com/archive/t.php/t-38700,1.html - Cached - Similar

The iphone 1.0 is a quad band phone (GSM 850, GSM 900, GSM 1800, GSM 1900) and can operate on both ATT's and T-mobile's networks .... 1) Would a phone with specs of HSPDA 2100 work on US Tmobile 3G network? ... Plus everyone I know with a 3g compatible tmobile use edge to surf the net anyway complaining thatthe 3g ...
www.thebuzzmedia.com/3g-iphone-may-not-work-on-t-mobile-3g-network/ - Cached

I have a GSM tri-band (900/1800/1900) phone will the prepaid SIM cards work in ... Where in the world won't my GSM 900/1800 GSM cell phone work? ... There are two main cell or mobile phone network technologies used in the world: GSM and ... is GSM compatible and if it will work on the GSM frequency band used in the ...
www.telestial.com/faq_gsm_phones.php - Cached - Similar

Quad band phones will work all over the world with all GSM service providers. ... specification for the third-generation mobile communications technology ... No, 900 mhz or 1800 mhz phone will not work in the US. ... Sim card is provided by your GSM service provider, such as T-mobile, AT&T or Cingular in the USA. ...
buyersguide.bargainoffers.com/gsm_cell_phone_guide.shtml - Cached - Similar

GSM 850/900/1800/1900 (Quadband) Cell Phones ... The Bottom Line: The Travelocity Travel Phone isn't original, but it's a usable dual-SIM-card phone. ... Specs: T-Mobile, GSM, Up to 360 min, With digital camera / digital player / FM radio, ... CBSNews.com, CBSSports.com, CHOW, CNET, College Network, Find Articles ...
reviews.cnet.com/cell-phone-reviews/?filter=1105054... - Cached - Similar