Citic Telecom International Limited 

CITIC Telecom International Holdings Limited operates globally as a comprehensive telecommunications service provider. It offers a wide array of carrier services, including advanced mobile roaming solutions like signaling (SCCP), multiple IMSI options, and pre-paid roaming, as well as virtual network enablement (MVNE, GMVNO), IP packet exchange, and SMS firewall protection. Its international portfolio extends to voice hubbing for both mobile and fixed line operators, data roaming, SMS services, and cutting-edge data platforms such as a datamall, big data analytics, and Internet of Things (IoT) services. For enterprise clients, the company delivers robust solutions encompassing network connectivity, data center management, cloud computing, stringent information security, specialized enterprise mobile services, and integrated voice and information systems. It also facilitates Internet-based communications through its Communication Platform as a Service (CPaaS), catering to handset manufacturers and Over-The-Top (OTT) operators. In Macau, CITIC Telecom is pivotal in developing digital infrastructure and applications. It provides essential communication support for key facilities like airports, entertainment venues, and major events such as the Macau Grand Prix, while also supplying local and international roaming services to individual consumers. Its consumer offerings include local 4G mobile services, extensive roaming capabilities (including the Greater Bay Area), and OTT TV. Furthermore, the company provides local and international fixed-line telephony, handset sales, Wi-Fi hotspots, and home broadband solutions. Incorporated in 1997 and headquartered in Kwai Chung, Hong Kong, the company was previously known as CITIC 1616 Holdings Limited until it adopted its current name in 2010. It operates as a subsidiary of CITIC Limited.