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  2. Cellular frequencies - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies

    Many GSM phones support three bands (900/1,800/1,900 MHz or 850/1,800/1,900 MHz) or four bands (850/900/1,800/1,900 MHz), and are usually referred to as tri-band and quad-band phones, or world phones; with such a phone one can travel internationally and use the same handset. This portability is not as extensive with IS-95 phones, however, as IS ...

  3. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  4. Cellular frequencies in the United States - Wikipedia

    en.wikipedia.org/wiki/Cellular_frequencies_in...

    The 700 MHz band was auctioned in early 2008 using spectrum previously used by television stations' analog broadcasts, with Verizon Wireless and AT&T Mobility winning the majority of available spectrum. Qualcomm and Echostar were winners of a significant amount of broadcast-oriented spectrum. Verizon Wireless will use the upper band of the 700 ...

  5. Clearnet (Telus Mobility) - Wikipedia

    en.wikipedia.org/wiki/Clearnet_(Telus_Mobility)

    Clearnet (branded in advertising as "Clearne+") was a division of Telus Mobility launched in April 2011 to sell landline and mobile phone bundles in Western Canada. [1] [2] It was a revival of the Clearnet Communications brand name, which originally belonged to an independent cellular provider that was merged into Telus Mobility in 2000.

  6. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    It was unencrypted and easily vulnerable to eavesdropping via a scanner; it was susceptible to cell phone "cloning" and it used a Frequency-division multiple access (FDMA) scheme and required significant amounts of wireless spectrum to support. On 6 March 1983, the DynaTAC 8000X mobile phone launched on the first US 1G network by Ameritech.

  7. Postpaid mobile phone - Wikipedia

    en.wikipedia.org/wiki/Postpaid_mobile_phone

    The postpaid mobile phone is a mobile phone for which service is provided by a prior arrangement with a mobile network operator.The user in this situation is billed after the fact according to their use of mobile services at the end of each month.

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