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  2. Call blocking - Wikipedia

    en.wikipedia.org/wiki/Call_blocking

    Call blocking, also known as call block, call screening, or call rejection, allows a telephone subscriber to block incoming calls from specific telephone numbers. This feature may require an additional payment to the subscriber's telephone company or a third-party. Call blocking is desired by individuals who wish to block unwanted phone calls.

  3. Attempted acquisition of T-Mobile USA by AT&T - Wikipedia

    en.wikipedia.org/wiki/Attempted_acquisition_of_T...

    AT&T, T-Mobile, and Deutsche Telekom was a lawsuit brought by the US Antitrust Division of the Department of Justice seeking to block the merger of AT&T Mobility and T-Mobile USA. [11] Had the purchase been completed, AT&T would have had a customer base of approximately 130 million users, making AT&T the largest wireless carrier in the United ...

  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. AT&T mobile services interrupted for customers. What to know ...

    www.aol.com/t-mobile-services-interrupted...

    AT&T mobile users began experiencing "SOS" only functionality beginning around 3:30 a.m. as nearly 80,000 cell phone users now experience outage. AT&T mobile services interrupted for customers ...

  6. Tech Social 101’s first tip helps with blocking calls from potential scammers. To use this setting, first, go to Settings, then click on Phone and turn on the feature labeled “Silence Unknown ...

  7. Anonymous call rejection - Wikipedia

    en.wikipedia.org/wiki/Anonymous_call_rejection

    In many voice telephone networks, anonymous call rejection (ACR) is a calling feature implemented in software on the network that automatically screens out calls from callers who have blocked their caller ID information. The caller usually hears a voice message explaining that their call cannot be connected unless they display their number.

  8. What is Apple's 'SOS mode'? iPhone feature lets you make ...

    www.aol.com/apples-sos-mode-iphone-feature...

    AT&T cellphone users across America were experiencing outages Thursday that cut off their access to cellular service. For now, the company is advising users to connect to Wi-Fi to access ...

  9. iPhone 3G - Wikipedia

    en.wikipedia.org/wiki/IPhone_3G

    [13] [14] Within the United States, it was only available with a two-year AT&T cell phone plan, and required an up-front payment of $199 for the 8 GB model and $299 for the 16 GB model. [ 11 ] Following the release of the successor iPhone 3GS model one year later, the iPhone 3G remained on sale but became Apple's budget phone offer, with its ...