By Simon Gardner and Dave Graham MEXICO CITY (Reuters) – Mexico will give its new telecoms regulator sweeping powers to police dominant telecommunications companies, right down to their prices and discounts, according to a draft bill that fleshes out a constitutional reform passed last year. The spearhead of efforts to curb the power of telecoms mogul Carlos Slim, the Federal Institute for Telecommunications (IFT) will be able to force phone companies to seek approval every year for interconnection and infrastructure-sharing terms, according to a draft of the legislation obtained by Reuters. It is part of a massive remit granted to the IFT that allows the watchdog to order phone and TV companies to sell assets, share networks and infrastructure and revoke concessions. The local mobile and fixed-line units of Slims firm America Movil as well as broadcaster Televisa are widely expected to be declared dominant by the IFT.