Originally Posted by joeluken:
“Lol - I have a Three sim and an O2 sim and spend a lot of time in Cornwall. Do you ?
There are loads of places no network covers down here but I find Three better on the whole especially for data . Par isn't very far from Fowey as the crow flies. I wouldn't put much faith in network coverage maps as where I'm now has "good" 3G coverage according to O2 map but data is non existent.
The only way the OP can know what work in the precise location he needs i.e. a specific cottage is ask the cottage owner if they know what works and what doesn't.”
No, as I said, this is information from coverage checkers, and I'm not claiming to be right, this is just the info that's available.
Based on my experience, if a coverage checker shows barely any outdoor coverage and a lot of no coverage, I get no signal at all. I find operators like to overestimate their coverage rather than underestimate it. Of course nothing is going to be as accurate as being there with a phone in your hand. It just seems unusual for operators to underestimate coverage.
In my area (a town with relatively good coverage), I know many places that show good indoor coverage can be awful or non-existent.
If you take a look at the (crowd sourced) RootMetrics map, it looks like all networks have pretty good coverage in Fowey (I looked around PL23 1ET) except for Vodafone:
http://webcoveragemap.rootmetrics.com/uk
If there's actually coverage there, it makes me wonder why the maps are so inaccurate.