Ngn Laboratory Of Sichuan Vocational And Technical College Of Posts And Telecommunications Construction

With the development of information telecommunication and the increasing of data services, NGN becomes an inevitable trend for fixed network development and transformation. Therefore, the vocational college keeps pace with technology and transformation of enterprise, building a softswitch-based NGN network is very important.This paper described NGN network structure at first, the authors focus on analyzing the performance parameters of NGN software and hardware equipment, demonstrated the feasibility of building, and proposed to a constructional solution of NGN network laboratory which core is SOFTX 3000 Softswitch.The authors select SOFTX 3000 as equipment of core layer in switching, it is responsible for the entire network of signal processing; UMG as a trunking gateway device is responsible for connection of two voice processing mode: circuit-switched and packet-switched;Smaller capacity IAD products to be used for the Access Gateway, and its protocol are mainstream of SIP, MGCP, etc. the traditional voice access through IAD, data service access through GW, and the original fixed network access through the program-controlled switching technology. As the basis of the NGN network, developed the "SoftX3000 basic data configuration", "Interconnection MGCP terminal and service," "SIP Interconnection terminal and service"," Centrex group service"," configuration of emergency call center (110) " and other experimental training subject. In addition, this solution set aside IP interfaces, which is a foundation of NGI access, mobile network access in future.