Global Link Communications Holdings Limited, an investment holding company, engages in the development, production, sale, service, and operation of rail transit passenger information system solutions in the People's Republic of China and Hong Kong. The company offers train-borne passenger information system solutions, such as train-borne closed-circuit television systems, onboard public address systems, and train-borne passenger information display systems. It is also involved in the development of telecommunication application software, URT video surveillance system solutions, URT radio system solutions, intelligence video surveillance systems, value-added telecommunication service systems, and large-scale call center and board-band telecommunication systems, as well as technology products and integrated solutions. In addition, the company provides spare parts and accessories; system software and hardware upgrades, technical support, system solutions, product support, operating after-sale, and customer relationship management services, as well as holds software rights. It serves city metro, train vendors, URT integrators, backbone telecommunication operators, value-added services providers, digital TV network operators, other network operators, client service centers, information management agents, etc. Global Link Communications Holdings Limited was founded in 1998 and is headquartered in Hong Kong, Hong Kong.