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  2. SIM Application Toolkit - Wikipedia

    en.wikipedia.org/wiki/SIM_Application_Toolkit

    SIM Application Toolkit (STK) is a standard of the GSM system which enables the subscriber identity module (SIM card) to initiate actions which can be used for various value-added services. [1] Similar standards exist for other network and card systems, with the USIM Application Toolkit (USAT) for USIMs used by newer-generation networks being ...

  3. Samsung SCH-U470 - Wikipedia

    en.wikipedia.org/wiki/Samsung_SCH-U470

    The Samsung SCH-u470, or Juke and Verizon Wireless Juke, is a mobile phone offered exclusively by Verizon Wireless. It was announced on 2 October 2007, and released that same year on Q4 in three colors: red, teal, and navy (blue). [1] The phone is a music player when closed, and can be swiveled for use of the mobile phone.

  4. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone ...

  5. Samsung Galaxy Duos - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Duos

    The second SIM is always disconnected when a call is in progress on SIM 1 and vice versa. The manual for such phone's states: “Your device supports dual standby with two different networks. You cannot make or answer calls on both networks at the same time.” Samsung Galaxy Duos have a menu option entitled “Dual SIM Always On” which when ...

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

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

    Mobal is one of the world's longest running cell phone providers and was founded in 1989". [314] Naked Mobile: Cellular One of NE AZ, AT&T, T-Mobile [319] Personal, Lifeline: AZ, NM, UT Yes Yes. The SIM should work in a hotspot but they don't sell any themselves Yes No. Their highest plan only goes up to 60 GB of fast data Yes. Unlimited "2G ...

  7. GSM - Wikipedia

    en.wikipedia.org/wiki/GSM

    A nano sim used in mobile phones. One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card. The SIM is a detachable smart card [2] containing a user's subscription information and phone book. This allows users to retain their information after switching handsets.

  8. Samsung Galaxy - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy

    For devices to use a SIM card from other regions, one of the following actions totaling five minutes or longer in length must first be performed with the SIM card from the local region: Make calls on the phone or watch from the Samsung Phone app; Use the Call and Text on Other Devices feature to make calls; With the launch of the Galaxy S8 ...

  9. U.S. Cellular - Wikipedia

    en.wikipedia.org/wiki/U.S._Cellular

    United States Cellular Corporation (doing business as UScellular and formerly known as U.S. Cellular) is an American mobile network operator. Its stock is publicly traded, but Telephone and Data Systems Inc. owns a controlling stake (83% economic and 96% voting power).