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  2. eSIM - Wikipedia

    en.wikipedia.org/wiki/ESIM

    An eSIM (embedded SIM) is a form of SIM card that is embedded directly into a device as software installed onto a eUICC chip. First released in March 2016, eSIM is a global specification by the GSMA that enables remote SIM provisioning ; end-users can change mobile network operators without the need to physically swap a SIM from the device.

  3. NOS (Portuguese company) - Wikipedia

    en.wikipedia.org/wiki/NOS_(Portuguese_company)

    NOS, SGPS S.A. is a Portuguese telecommunications and media company which provides mobile and fixed telephony, cable television, satellite television and internet.The company resulted from the merger in 2013 of two of the country's major telecommunications companies: Zon Multimédia (formerly known as PT Multimédia, a spun-off media arm of Portugal Telecom) and Sonae's Optimus Telecommunications.

  4. Remote SIM provisioning - Wikipedia

    en.wikipedia.org/wiki/Remote_SIM_provisioning

    Remote SIM provisioning is a specification realized by GSMA that allows consumers to remotely activate the subscriber identity module (SIM) embedded in a portable device such as a smart phone, smart watch, fitness band or tablet computer.

  5. SIM card - Wikipedia

    en.wikipedia.org/wiki/SIM_card

    A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) 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 devices (such as mobile phones and laptops).

  6. SIM box - Wikipedia

    en.wikipedia.org/wiki/Sim_box

    SIM box operators often swap SIMs to replace restricted ones. They may also rewrite the International Mobile Equipment Identity (IMEI) of the SIM box, often using randomized IMEIs in ranges of or those assigned to common mobile phones to evade detection. The use of SIM boxes is often legal, but the use may constitute breach of carrier contracts.

  7. Etisalat - Wikipedia

    en.wikipedia.org/wiki/Etisalat

    e&, formerly branded as Etisalat, is a UAE state-owned telecommunications company. It is the 16th largest mobile network operator in the world by number of subscribers.. On 31 December 2021, Etisalat reported consolidated revenue of AED 53.3 billion and net profits of AED 11.1 billion. [2]

  8. 26th Network Operations Squadron - Wikipedia

    en.wikipedia.org/wiki/26th_Network_Operations...

    The 26th Network Operations Squadron (26 NOS), United States Air Force, is a network operations unit located at Gunter Annex, in Montgomery, AL. [1] History.

  9. CDMA subscriber identity module - Wikipedia

    en.wikipedia.org/wiki/CDMA_Subscriber_Identity...

    A CDMA subscriber identity module (CSIM) is an application to support CDMA2000 phones that runs on a UICC, with a file structure derived from the R-UIM card. By porting the application to the UICC (Universal Integrated Circuit Card), a card with CSIM, SIM, and USIM can operate with all major cellular technologies worldwide.

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