As someone who, like many on this forum, live in an area with poor broadband speeds (2-3meg), I was trying to find out more about using a 4G router and ditching the fixed line. I live in an area with decent 4G coverage. I'm in Northern Ireland and my two options for 4G broadband are Vodafone and EE. I wanted to go for Three home broadband as my mobile is with Three (unlimited data), but have been told by Three that they don't supply home 4G broadband in Northern Ireland (!) Not sure why that is, as they obviously supply mobile coverage. What I'm wondering is, if I were to buy a Huawei B535 router on Ebay, can I legally put in a SIM like my mobile SIM with unlimited data and use that for 4G home broadband, or do I have to get a specific SIM?