Additional facilities located on the island include a shelter for fishermen, a hospital (including a civilian doctor), satellite telecommunications facilities, radar surveillance equipment, and other communications equipment. Five public telephones are connected via satellite. The island also has Internet connectivity. Mobile phone reception is available for individuals with international roaming; a signal from China Mobile can be accessed from a GSM base station located on Nanxun Reef. In 2013, Taiwan's Chunghwa Telecom established a satellite-based cellular base station on the island to provide the coast guard with communication services.