The functions and characteristics are introduced in the text about centralized monitor system of Shanghai long-distance switching equipments.

This time AsiaInfo and Shanghais Mobile cooperated and realized realtime monitoring of prepaid billing, which provide good reference for core issues such as charge and monitor of 3g business.

Established in 2001, Shanghai Accella Technologies Limited. is a high-tech enterprise, integrating the design, development, production and service of network video surveillance products.