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  2. ATN International - Wikipedia

    en.wikipedia.org/wiki/ATN_International

    ATN International, Inc. (ATN) formerly known as Atlantic Tele-Network, Inc., is a publicly traded telecommunications company that is headquartered in Beverly, Massachusetts. It operates digital wireless, wireline, and both terrestrial and submarine fiber optic networks, serving markets that are geographically separated and technically ...

  3. Apple Increases iPhone Download Limit to 20MB - AOL

    www.aol.com/2010/02/19/apple-raises-iphone...

    Apple (AAPL) has raised the maximum size of downloads to its iPhones from 10MB to 20MB, according to iPhone Atlas and a number of other media sources that speculate the new limit is in preparation ...

  4. 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.

  5. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    A SIM lock, simlock, network lock, carrier lock or (master) subsidy lock is a technical restriction built into GSM and CDMA [1] mobile phones by mobile phone manufacturers for use by service providers to restrict the use of these phones to specific countries and/or networks.

  6. Upgrade to the new version of the AOL app for iOS

    help.aol.com/articles/upgrade-to-the-new-version...

    Users who have automatic updates enabled on their device will be updated automatically to the new AOL app experience. Turn automatic updates on. On your device, tap Settings. Scroll down | Tap App Store. Tap the slider next to App Updates. - If the slider is grayed out, check to see if your device has lower power mode turned on.

  7. No. 4 Electronic Switching System - Wikipedia

    en.wikipedia.org/wiki/No._4_Electronic_Switching...

    AT&T Long Distance was the primary customer for the switch. Driving development from the customer's perspective was AT&T VP Billy Oliver. [4] Previous tandem switching systems, primarily the No. 4 Crossbar switch, used analog voice signaling. The decision to switch in a digital voice format was controversial at the time, both from a technical ...