Sue, I was surprised too, at least about the router, before I rooted around. Before that i'd been ignorantly ready to help correct the OP. :) 'Broadband', whatever it means, doesn't define what medium is being used, but just its capacity. There seems to be quite a lot of room in the air for several gigahertz of wavebands, hence the continuing rise in the G numbers. And so, they realise, why not use the mobile network for internet access as well if people want. You could, for example, have had a 3?/4/5G dongle to stick in any computer USB socket and use it for instant internet access wherever you can get their signal.
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