China United Network Communications Group Co., Ltd. (hereinafter referred to as "China Unicom") was established on January 6, 2009 on the basis of the merger of the former China Netcom and the former China Unicom, with branches in 31 provinces (autonomous regions and municipalities directly under the central government) and many overseas countries and regions, and is the only telecommunications operator in China that is listed in New York, Hong Kong and Shanghai at the same time, and has been selected as one of the "Fortune Global 500 Enterprises" for many years, ranking 241st in the Fortune Global 500 in 2017.

China Unicom is mainly engaged in fixed communication business, mobile communication business, domestic and international communication facility service business, satellite international private line business, data communication business, network access business and various telecommunications value-added services, and system integration services related to communication and information services. On April 28, 2009, China Unicom launched a new full-service brand "Wo", which carries the service concept of China Unicom consistently adheres to innovation and provides comprehensive support for individual customers, family customers and group customers.

Based on the high requirements of data communication service quality, China Unicom pays great attention to the reliability and stability of the product in the selection of high-definition hybrid card matrix in the new conference room, and finally selects Guangzhou Geffen GF-MIX0808 series high-definition hybrid card matrix and multi-signal twisted pair transmitter MODEL-004, Guangzhou Gefen media central control system, which is the Guangzhou high-definition hybrid card matrix and multi-signal twisted pair transmitter MODEL-004, The recognition of Guangzhou Geffen media central control system also shows the quality and reliability of Guangzhou Geffen HD hybrid card matrix, and the Guangzhou Geffen HD hybrid card matrix will ensure the smooth development of the conference in the future!