2. In the UK, one of the planning law's most controversial aspects is that, outside protected areas, masts of up to 15 metres are 'permitted development'. GSM operators need only notify the council of their intention to erect one; the council has 28 days to comment. There is no requirement even to inform residents.
3. No one knows how many masts there'll be - that's the trouble. It could be hundreds of thousands.
2. The mobile phone relay masts will soon be obsolete, as satellite technology makes the towers redundant.