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  2. First Responder Network Authority - Wikipedia

    en.wikipedia.org/wiki/First_Responder_Network...

    In December 2017, all 50 states opted in to the network plan with AT&T, [14] but questions remained about when it would be deployed and how cost-effective it is. [ 15 ] In December 2023, FirstNet Authority Board Chairman Richard Corrizzo announced that the FirstNet Authority had validated that AT&T had completed the initial five-year network ...

  3. iPhone 7 - Wikipedia

    en.wikipedia.org/wiki/IPhone_7

    The iPhone 7 and iPhone 7 Plus [a] are smartphones that were designed, developed, and marketed by Apple Inc. They are the tenth generation of the iPhone.They were announced on September 7, 2016, at the Bill Graham Civic Auditorium in San Francisco by Apple CEO Tim Cook, and were released on September 16, 2016, succeeding the iPhone 6, iPhone 6 Plus, iPhone 6S and iPhone 6S Plus as the flagship ...

  4. iPhone 6s - Wikipedia

    en.wikipedia.org/wiki/IPhone_6s

    The iPhone 6s and 6s Plus feature a 12-megapixel (4032×3024 pixels [47]) rear-facing camera, an upgrade from the 8-megapixel (3264×2448) unit on previous models, as well as a 5-megapixel front-facing camera, compared to 1.3 megapixels of the iPhone 5, iPhone 5s, iPhone 6, 6 Plus and iPhone SE.

  5. Mobile country code - Wikipedia

    en.wikipedia.org/wiki/Mobile_country_code

    TETRA networks use the mobile country code from ITU-T Recommendation E.212 together with a 14-bit binary mobile network code (T-MNC) where only values between 0 and 9999 are used. [2] However, a TETRA network may be assigned an E.212 network code as well. [3] Some network operators do not have their own radio access network at all.

  6. UMTS - Wikipedia

    en.wikipedia.org/wiki/UMTS

    The Universal Mobile Telecommunications System (UMTS) is a 3G mobile cellular system for networks based on the GSM standard. Developed and maintained by the 3GPP (3rd Generation Partnership Project), UMTS is a component of the International Telecommunication Union IMT-2000 standard set and compares with the CDMA2000 standard set for networks based on the competing cdmaOne technology.

  7. iPhone 6 - Wikipedia

    en.wikipedia.org/wiki/IPhone_6

    The iPhone 6 was temporary discontinued on September 7, 2016, and the 6 Plus was permanently discontinued on same date, when Apple announced the iPhone 7 and iPhone 7 Plus, and the iPhone 6 and 6 Plus' spot as the entry-level iPhone was taken by the first-generation iPhone SE. As the iPhone SE has more powerful internal hardware than the ...

  8. Type Allocation Code - Wikipedia

    en.wikipedia.org/wiki/Type_Allocation_Code

    The Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI and 16-digit IMEISV codes used to uniquely identify wireless devices.. The Type Allocation Code identifies a particular model (and often revision) of wireless telephone for use on a GSM, UMTS, LTE, 5G NR, iDEN, Iridium or other IMEI-employing wireless network.

  9. Voice over LTE - Wikipedia

    en.wikipedia.org/wiki/Voice_over_LTE

    Verizon stopped activating CDMA-only devices on their network in 2018, and had previously planned to shut down 3G service in 2019, but extended the timeline for shutting down the 3G network twice [39] — first to December 31, 2020, and then to December 31, 2022, which the VP of Network Engineering says "will not be extended again." The company ...

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