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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 ...
Number portability is available nationwide, [30] provided the customer should have completed a period of 90 days (from the date of activation of the mobile connection) with the current operator, to be eligible for porting to another operator. Similarly, after porting to a new provider the number would be locked in for 90 days.
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.
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).
Jio was soft launched on 27 December 2015 with a beta for partners and employees, [14] [15] and became publicly available on 5 September 2016. It is the largest mobile network operator in India and the third largest mobile network operator in the world with over 46.37 crore (463.78 million) subscribers.
Aditya Birla Group (15.0%) Public Shareholding (38.0%) In February 2023, the Government of India converted ₹16,133 crore (~US$1.9 billion) debt owed to it by the operator into equity, after the company opted for the option given to it under a 'telecom reforms package'. [11]
Jio Platforms is an Indian multinational technology company, headquartered in Mumbai. It is a subsidiary of Reliance Industries . Established in 2019, it acts as a holding company for India's largest mobile network operator , Jio , and other digital businesses of Reliance. [ 3 ]
A SIM has a unique IMSI that does not change, while the MSISDN can change in time, i.e. different MSISDNs can be associated with the SIM. The MSISDN follows the numbering plan defined in the International Telecommunication Standard Sector recommendation E.164.