Calls from Jamaica to other NANP nations, such as the U.S. and Canada, are dialed as 1 + NANP area code + 7-digit number. Jamaica has a fully digital telephone communication system.OverviewTelecommunications in Jamaica include radio, television, fixed and mobile telephony, and Internet services. The sector is regulated by the Office of Utilities Regulation (OUR) and the Spectrum Manageme. Before liberalization, the market was dominated by Cable & Wireless Jamaica which provided fixed-line and international services, until new entrants were allowed in the early 2000s. In 2001, th.