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  2. Comparison of mobile phone standards - Wikipedia

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

    GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM . Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.

  3. List of mobile network operators - Wikipedia

    en.wikipedia.org/wiki/List_of_mobile_network...

    Comparison of mobile phone standards; List of sovereign states by number of broadband Internet subscriptions; List of countries by number of Internet users; List of countries by number of telephone lines in use; List of countries by smartphone penetration; List of multiple-system operators; List of telephone operating companies

  4. List of mobile virtual network operators in the United States ...

    en.wikipedia.org/wiki/List_of_mobile_virtual...

    No, plans capped at 13 GB max (after purchasing up to +5 GB at $10/GB), however can carryover ununsed data every month [531] No, plans do not slow and are cutoff upon reaching limits [533] Yes [534] Yes, carried over data can be used for tethering too Yes, int'l calling from U.S. [533] Yes [111] Owned by Verizon. Previously owned América ...

  5. Comparison of wireless data standards - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_wireless...

    Typical 2G standards include GSM and IS-95 with extensions via GPRS, EDGE and 1xRTT, providing Internet access to users of originally voice centric 2G networks. Both EDGE and 1xRTT are 3G standards, as defined by the ITU, but are usually marketed as 2.9G due to their comparatively low speeds and high delays when compared to true 3G technologies.

  6. Cell phone data plan comparison: AT&T, Sprint, T-Mobile ... - AOL

    www.aol.com/2010/10/28/cell-phone-data-plan...

    Cell phone data plans are hard to escape these days as hundreds of thousands of Google Android phones and Apple iPhones are activated every day. These smartphones bring access to the Web ...

  7. T-Mobile US - Wikipedia

    en.wikipedia.org/wiki/T-Mobile_US

    Sprint's network was decommissioned and integrated into T-Mobile's network. The CDMA network was completely shut down on May 31, 2022 [131] [132] [133] and the LTE network was discontinued on June 30, 2022. [55] Sprint used bands 25, 26 and 41 to provide LTE coverage and used band n41 for NR coverage.

  8. Sprint Extends Push-to-Talk Capabilities to More Phones ... - AOL

    www.aol.com/news/2012-10-24-sprint-extends-push...

    OVERLAND PARK, Kan.-- ( BUSINESS WIRE )-- Sprint ( NYS: S) , the industry's push-to-talk pioneer and market leader, today announced the launch of Sprint ® Direct Connect ® Now, a downloadable ...

  9. AT&T Mobility - Wikipedia

    en.wikipedia.org/wiki/AT&T_Mobility

    AT&T Mobility, LLC, also known as AT&T Wireless and marketed as simply AT&T, is an American telecommunications company. It is a wholly owned subsidiary of AT&T Inc. and provides wireless services in the United States. AT&T Mobility is the second largest wireless carrier in the United States, with 114.5 million subscribers as of March 31, 2024.

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