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Typically, APN settings are configured automatically when SIM is inserted or eSIM is activated. [1] An 'Access Point Name' (APN) is the name of a gateway [ 2 ] between a mobile network ( GSM , GPRS , 3G , 4G and 5G ) and another computer network , frequently the public Internet .
If the wrong PIN is entered more than three times, the SIM card will become locked. It can be unlocked by entering the PUK code provided by the mobile service provider, [1] which may be available on the SIM card's packaging, the contract, or provided by customer service after identity verification. After the PUK code is entered, the PIN must be ...
The IMSI is used in any mobile network that interconnects with other networks. For GSM, UMTS and LTE networks, this number was provisioned in the SIM card and for cdmaOne and CDMA2000 networks, in the phone directly or in the R-UIM card (the CDMA equivalent of the SIM card).
Globe Telecom, Inc., commonly shortened as Globe, is a major provider of telecommunications services in the Philippines.The company operates the largest mobile network in the Philippines and one of the largest fixed-line and broadband networks.
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.
Some providers achieve this automatic call interception and callback by encoding a program onto the SIM card. Other providers use Multi-IMSI (International Mobile Subscriber Identity) technology to lower the cost of roaming. In this case, there is a program on the SIM card that selects the lowest cost IMSI (or 'profile') to use in a specific ...
Over-the-air provisioning (OTAP) is a form of OTA update by which cellular network operators can remotely provision a mobile phone (termed a client or mobile station in industry parlance) and update the cellular network settings stored on its SIM card. This can occur at any time while a phone is turned on.
The eSIM describes the functionality in the SIM, not the physical size of the SIM - and there are eSIMs in many formats (2FF, 3FF, 4FF, MFF). GSMA have also developed a compliance framework [ 9 ] for eSIM devices, eUICCs, and subscription management products - to help with interoperability and security for products supporting eSIM.