• Articles

    How to use GARI

    GARI – is a project designed to help people learn about the accessible features available on different devices … and to find the device that best suits them The site is available at www.gari.info It allows you to search for phones … tablets … and accessible and assistive apps It also helps to explain what features might be of interest or use to those with hearing, vision, speech, dexterity or cognitive impairment To begin, a user selects the device they are interested in searching for … and chooses one of the three search methods … They can search for the best device by category … by a specific model ……

  • How do SIM Cards work? – SIMtrace
    Articles,  Blog

    How do SIM Cards work? – SIMtrace

    Have you ever looked at the chip of a credit card and a mobile phone sim card and thought, wait… they look quite similar? And would you like to know what makes these two old phones, a nokia and motorola, so special, even in 2018? In this series I want to talk about mobile networks and mobile network security. And by that I don’t mean android or iOS apps. I mean the networks. SIM Cards, Baseband and Basestations. Most of us know how the internet works. It’s so easy to setup a lab and use wireshark to look at the traffic. But we basically don’t really learn about how mobile…