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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.
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 ...
Emirates Integrated Telecommunications Company P.J.S.C. (Arabic: شركة الإمارات للاتصالات المتكاملة), commercially rebranded as du (دو) in February 2007, is one of the two main telecom operators in the United Arab Emirates. du offers fixed line, mobile telephony, internet and digital television services across the UAE.
MSISDN (/ ˈ ɛ m ɛ s aɪ ɛ s d iː ɛ n / MISS-den) is a number uniquely identifying a subscription in a Global System for Mobile communications or a Universal Mobile Telecommunications System mobile network. It is the mapping of the telephone number to the subscriber identity module in a mobile or cellular phone.
The overall structure of the UAE's national numbering plan is: Landline numbers begin with: [1] 01 Al Karama (Canceled) 02 Abu Dhabi; 03 Al Ain; 04 Dubai; 05 mobile number; 06 Sharjah, Ajman and Umm al-Quwain; 07 Ras Al Khaimah; 08 Western Region (Liwa, etc.) 09 Fujairah; Mobile numbers begin with: 050 cell phones ; 052 cell phones ; 053 cell ...
Mobile cellular: 17.943 million, 66th in the world (2011) [3] System: modern fiber-optic integrated services; digital network with rapidly growing use of mobile-cellular telephones; key centers are Abu Dhabi and Dubai [3] Domestic: microwave radio relay, fiber optic and coaxial cable [3]
Users can switch carriers while keeping number and prefix (so prefixes are not tightly coupled to a specific carrier). If there is only 32.. followed by any other, shorter number, like 32 51 724859, this is the number of a normal phone, not a mobile. 46x: Join (discontinued mobile phone service provider) [3] 47x: Proximus (or other) 48x
A typical SIM card (mini-SIM with micro-SIM cutout) 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 devices (such as mobile phones and laptops).