From personal expirance my one2one phone worked about 7 / 8 miles out. But in Calias regained recepion infont of the pastport control building each time I been there. And get a free of charge call to home
Also all mobiles are digital now but my dads fisherman mate, used to beable to use his phone 20/25 miles out ( motorala analouge brick ) when upgrading to digital his new small nokia only worked a couple of miles out. He wern't impressed with the newer modern technolgy much!
Phil.