More than 11,000 new mobile phone masts could be put up in the West Midlands, a senior Conservative has claimed.
Dramatic advances in mobile phone technology had led to a massive increase in demand for masts, said Caroline Spelman (Con Meriden).
She called for urgent changes to be made in planning laws, so that councils could reject applications for masts near homes, schools and hospitals.
Ms Spelman is the shadow Secretary of State for Local Government, responsible for Conservative policy on planning.
She highlighted figures from industry experts predicting 135,000 new mobile phone masts would be needed across the country. This would mean around 209 masts were needed in every Parliamentary constituency, she said.
More than 11,000 would be built in the West Midlands, and 2,000 would be needed in Birmingham alone.
So far, about 500 mast sites have been established in the city - and mobile phone firms have confirmed plans for 190 more.
But even more masts will be needed in the future because of the emerging popularity of "3G" technology, Mrs Spelman said.
She warned MPs in the House of Commons: "Industry sources have recently indicated that 3G technology will require a substantial increase in the number of mobile phone masts."