Telmex, of which 49.1% is owned by Slim and his family, charges among the highest usage fees in the world, according to the Organisation for Economic Co-operation and Development.
Telmex, với 49.1% do Carlos và gia đình sở hữu, thu phí sử dụng thuộc hàng đắt nhất thế giới, theo Organisation for Economic Co-operation and Development.