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On 7 April 2017, it was announced that Aldi Talk would cease all operations in Belgium by 6 June. [3] The cause of this decision was the coming in to effect of an anti-terrorism measure taken by the Belgian government, banning the sale and use of anonymous SIM cards , instead requiring the mobile operators to identify and register each of their ...
E-Plus provides network access to numerous virtual operators, such as Base, Blau Mobilfunk, ALDI Talk, Simyo, VIVA, JambaSIM. It also owns and operates AY YILDIZ, a mobile brand aimed at the Turks in Germany, offering affordable calls to Turkey and roaming in Turkish networks. E-Plus was the first company to introduce i-mode in Germany.
The Medium MVNO, operates under its own brand with its own SIM cards, marketing, sales, distribution, and can in some countries obtain its own numbering range/mobile network code. The Medium MVNO has the ability to set tariff bundles and packages independently from the retail prices set by the host network operator (MNO).
A direct-to-mobile gateway is a device that has built-in wireless GSM connectivity. It allows SMS text messages to be sent and/or received by email, from Web pages or from other software applications by acquiring a unique identifier from the mobile phone's Subscriber Identity Module, or "SIM card". Direct-to-mobile gateways are different from ...
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).
USSD can also be used to refill the balance on the user's SIM card and to deliver one-time passwords or PIN codes. Some operators use USSD to provide access to real-time updates from social-networking websites including Facebook and Twitter. [3] Between 2012 and 2018, the Wikipedia Zero project provided access to Wikipedia articles via USSD. [4]
Simjacker is a cellular software exploit for SIM cards discovered by AdaptiveMobile Security. [1] 29 countries are vulnerable according to ZDNet. [2]The vulnerability has been exploited primarily in Mexico, but also Colombia and Peru, according to the Wall Street Journal, [3] where it was used to track the location of mobile phone users without their knowledge.
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 ...