Empresa Nacional de Telecomunicaciones is engaged in the provision of telecommunication services. Services provided include local, domestic and international long-distance calls, international direct dialing, international directory assistance, international business toll-free service, mobile maritime service via satellite, video conference, international telephone cards, bank credit cards, collect calls, television and radio transmission services, and private corporate networks through a digital network offering voice, data, fax, image and internet services.

Millicom International Cellular is a global telecommunications group with mobile telephony operations in emerging markets. Co also operates various combinations of fixed telephony, cable and broadband businesses in five countries in Central America. Co. operates its mobile businesses in El Salvador, Guatemala, Honduras, Bolivia, Colombia, Paraguay, Chad, the Democratic Republic of Congo, Ghana, Mauritius, Rwanda, Senegal, Tanzania and Laos. Co. also provides broadband and cable television services in Costa Rica, Honduras and El Salvador; fixed telephony in El Salvador and Honduras, and corporate data services in the above countries and in Guatemala and Nicaragua.