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  2. SIM lock - Wikipedia

    en.wikipedia.org/wiki/SIM_lock

    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. This is in contrast to a phone (retrospectively called SIM ...

  3. TracFone Wireless - Wikipedia

    en.wikipedia.org/wiki/TracFone_Wireless

    TracFone Wireless, Inc. (TFWI) was an American wireless service provider.It was a mobile virtual network operator offering prepaid and no-contract service on the AT&T Mobility, T-Mobile US, and Verizon networks [2] under multiple brands, including TracFone, Net10 Wireless, GoSmart Mobile, Page Plus Cellular, SafeLink Wireless, Simple Mobile, Total Wireless, and Straight Talk Wireless (in ...

  4. International Mobile Equipment Identity - Wikipedia

    en.wikipedia.org/wiki/International_Mobile...

    The International Mobile Equipment Identity ( IMEI) [ 1] is a numeric identifier, usually unique, [ 2][ 3] for 3GPP and iDEN mobile phones, as well as some satellite phones. It is usually found printed inside the battery compartment of the phone but can also be displayed on-screen on most phones by entering the MMI Supplementary Service code ...

  5. List of CDMA2000 networks - Wikipedia

    en.wikipedia.org/wiki/List_of_CDMA2000_networks

    No new applications for CDMA service were accepted after 7 Nov 2018. Voice data via IP over the CDMA2000 1x EV-DO network. Interdnestrcom Moldova: CDMA2000 1xRTT 450 / 800 ? Sep 2020 (450) / Aug 2023 (800) [123] [124] [125] Coverage only in Transnistria. Telecom Namibia Namibia: CDMA2000 1xRTT, EV-DO Rel. 0 450 / 800 Nov 2006: Apr 2015 [126] [127]

  6. Palm Treo Pro - Wikipedia

    en.wikipedia.org/wiki/Palm_Treo_Pro

    The phone originally was released in an unlocked GSM format. The updated release of the phone for CDMA networks featured new hardware specifications, including a more powerful processor, more storage, and less user-available RAM. Mobile phone, CDMA model with 800/1900 MHz bands, with EV-DO Rev.A data. Unlocked GSM model also available

  7. GSM - Wikipedia

    en.wikipedia.org/wiki/GSM

    Website. www .gsma .com. The Global System for Mobile Communications ( GSM) is a standard developed by the European Telecommunications Standards Institute (ETSI) to describe the protocols for second-generation ( 2G) digital cellular networks used by mobile devices such as mobile phones and tablets. GSM is also a trade mark owned by the GSM ...

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