A New Jersey-based company has struck the first publicly announced deal under reforms enacted this year that allow U.S. telecom firms to do business with Cuba. IDT Corp.’s deal with Cuban state telecoms firm ETECSA will affect its sales of international calling cards to immigrant communities in the U.S. and its business connecting calls between phone companies in different countries, CEO Bill Pereira told The Associated Press on Friday. […] Outside experts blame the high cost of calls in and out of Cuba, among the world’s most expensive, on the country’s use of its monopoly on telecommunications to generate badly...