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  2. Restrictions on cell phone use while driving in the United ...

    en.wikipedia.org/wiki/Restrictions_on_cell_phone...

    The laws regulating driving (or "distracted driving") may be subject to primary enforcement or secondary enforcement by state, county or local authorities. [1]All state-level cell phone use laws in the United States are of the "primary enforcement" type — meaning an officer may cite a driver for using a hand-held cell phone without any other traffic offense having taken place — except in ...

  3. Cellular frequencies in the United States - Wikipedia

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

    There are 51 MTAs, 493 BTAs and 175 EAs in the United States. The Advanced Wireless Services (AWS) bands, auctioned in the summer of 2006, were for 1,710–1,755 MHz, and 2,110–2,155 MHz. The spectrum was divided into blocks: A blocks were for Cellular Market Areas, based on existing cellular (1G) licenses, and were 2 × 10 MHz.

  4. Mobile phones and driving safety - Wikipedia

    en.wikipedia.org/wiki/Mobile_phones_and_driving...

    This makes it one of the highest in the world. Victoria – The penalties if the driver is caught using a mobile phone whilst driving are 4 demerit points and a $555 fine. If the matter is heard at court, the fine for illegal mobile phone/device use can be as much as $1,849.

  5. Wireless Application Protocol - Wikipedia

    en.wikipedia.org/wiki/Wireless_Application_Protocol

    Wireless Application Protocol. Wireless Application Protocol (WAP) is a now obsolete technical standard for accessing information over a mobile cellular network. Introduced in 1999, [1] WAP allowed at launch users with compatible mobile devices to browse content such as news, weather and sports scores provided by mobile network operators ...

  6. Unlocking Consumer Choice and Wireless Competition Act

    en.wikipedia.org/wiki/Unlocking_Consumer_Choice...

    As a result, only phones that were purchased before or within 90 days of the effective date could continue to be unlocked by users. Phones purchased more than 90 days past the effective date would again be subject to the anti-circumvention clause of the DMCA and could not be legally unlocked without the carrier's permission. [4] [1]

  7. Mobile phone use in schools - Wikipedia

    en.wikipedia.org/wiki/Mobile_phone_use_in_schools

    A phone cage used for keeping students' phones away from them during school hours. The use of mobile phones in schools has become a very controversial topic debated by students, parents, teachers and authorities. People who support the use of mobile phones believe that these phones are useful for safety, allowing children to communicate with ...

  8. Comparison of mobile phone standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_mobile_phone...

    In 3G, the most prevalent technology was UMTS with CDMA-2000 in close contention. All radio access technologies have to solve the same problems: to divide the finite RF spectrum among multiple users as efficiently as possible. GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA.

  9. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    Enabling technology for mobile phones was first developed in the 1940s but it was not until the mid-1980s that they became widely available. By 2011, it was estimated in Britain that more calls were made using mobile phones than wired devices. [1] The history of mobile phones covers mobile communication devices that connect wirelessly to the ...