"Since the early 1990’s, Ericsson has distributed switching equipment for fixed telephony and mobile GSM systems in Cuba. Ericsson also supervises the installation of, and provides support for, the equipment delivered. In 2010, Ericsson AB, a company organized under Swedish law, established a local branch in Cuba. This branch currently has approximately 12 employees."

https://www.sec.gov/…/7178…/000119312510219206/filename1.htm