An enterprise IPPBX System Overview Currently, most companies are still using the traditional PBX system or switch to complete the internal administrative office phone, and most of the users are limited to the LAN, if it is geographically dispersed corporate office, you need to take over high call charges. Excellent communication Shikang enterprise VoIP / IPPBX / WPBX system for enterprise production system efficient and safe operation of providing protection, the system can be completed in addition to the basic administrative office phone, you can also directing, video surveillance, data collection, integrated command and control. System solutions with a different feature set, save more input costs. Companies can use the product large capacity, easy expansion, support for transparent networking capabilities built into each branch from the plant unified network, this network brings together voice dispatch, industrial monitoring, video conferencing and other information media, production, security systems play a central management, a reasonable allocation of resources such as integrated command and control capabilities for enterprises to bring more benefits. Second, the system solution network in Figure 1. Enterprise VoIP / IPPBX / WPBX Networking diagram UC9000-B Integrated IPPBX, VoIP, wireless PBX functionality, the system has core control device (master / slave), E1 relay unit, access units, IP telephone component. IPPBX both functions can be completed, it is possible to achieve both the function of the wireless PBX. For the original POTS telephone network gateway access through AX1000, keep the original wiring, and also can access the SIP phone (need to take the SIP protocol), or via WIFI to the mobile terminal access to the bureau, the enterprise VoIP / IPPBX / Wireless PBX system is the ability to retain existing resources to value-added business transformation. 2 Network diagram practical case Guang'an Guang'an IPPBX system involves more than 100 articles and more than 1,000 pieces inside perimeter, providing one thousand exchange service. To improve the security of the system at each point on the use of double backup approach. When unforeseen circumstances cause the main damage to the equipment, the standby device can continue to work. Third, the system function 1. Achieve core switching functions: voice calls with basic functions, scheduling functions, conferencing features. (2) need access to video conferencing, as a terminal via IP access to the Council. 3 open middleware interfaces, which have features such as:? Mask the underlying information services do not need to know the distribution of the underlying hardware resources, the use of a unified interface direct call. ? Affairs editor interface provides transaction editing interface, allowing businesses to develop more flexible. Developers can edit a transaction (control flow), direct calls range of resources, are only interested in the affairs of the results, do not care about the process the transaction, greatly improving the service processing capabilities. ? Provides event notification mechanism