Beijing ZhongChuang Telecom Test Co., Ltd. which is known as ZCTT was established in 1995, and listed at Shanghai Stock Exchange in 2003. ZCTT is the first high-tech enterprise specializing in communication testing field and the leading provider of communication network testing solutions in China. With many-year technology accumulation, ZCTT has formed three categories of products, including instruments, network monitoring appliances, and mobile carrier service assurance and visibility systems, which cover Internet, mobile Internet, IPV6, 3G, LTE, signaling monitoring, and other key communication fields. To ensure the network security and effective operation, ZCTT has provided comprehensive solutions for customers.