Mexico's telecommunications regulator said on Tuesday it had fined America Movil's fixed-line unit, Telmex, 49.3 million pesos ($3.67 million) for monopolistic behavior to try to displace competitor Axtel. The Federal Telecommunications Institute (IFT), the regulator created under a new law last year, said Telmex ignored requests from Axtel to interconnect with its network and did not provide information about its infrastructure when asked. Telme…