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  2. Cellular frequencies in the United States - Wikipedia

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

    Professional wireless microphones used the 700 MHz band until 2010 when they were made illegal, but equipment still exists in use that may interfere with 3G and 4G technologies. [10] Due to immediate adjacency to channel 51 lower 700 MHz A block license holders were prohibited to use it within channel 51 station service areas.

  3. AT&T Mobility - Wikipedia

    en.wikipedia.org/wiki/AT&T_Mobility

    However, the second Android phone AT&T released was the HTC Aria [80] [81] [82] which was announced on June 14, 2010 and released on June 20, 2010. The Samsung Captivate, which is part of the Galaxy S family, was released on AT&T's network on July 18, 2010. In addition to devices released on AT&T were a line of handsets manufactured by Motorola.

  4. List of wireless network technologies - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    CDMA2000 is a family of 3G mobile technology standards for sending voice, data, and signaling data between mobile phones and cell sites. It is a backwards-compatible successor to second-generation cdmaOne (IS-95) set of standards and used especially in North America and South Korea, China, Japan, Australia and New Zealand.

  5. UMTS channels - Wikipedia

    en.wikipedia.org/wiki/UMTS_channels

    The UMTS channels are communication channels used by third generation (3G) wireless Universal Mobile Telecommunications System (UMTS) networks. [ 1 ] [ 2 ] [ 3 ] UMTS channels can be divided into three levels:

  6. AT&T decides to offer FaceTime over cellular, but only on LTE ...

    www.aol.com/news/2012-11-08-atandt-changes-its...

    Now you'll be able to fire up the video chat app on your iOS 6 device over LTE, so long as you're on one of the new tiered data plans. ... Update: AT&T tells us that you don't need to be actively ...

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

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

    Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.

  8. Older devices will lose 911 access when 3G towers shut down

    www.aol.com/news/older-devices-lose-911-access...

    Feb. 8—With one major carrier phasing out its older third-generation mobile data networks later this month, and others planning to phase out 3G networks later this year, state emergency ...

  9. AT&T is shutting down its 3G network: Talking Tech podcast - AOL

    www.aol.com/news/t-shutting-down-3g-network...

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