Softswitch-based Engineering Design And Implementation Of Gateway Office

The telephone switching machine has changed from traditional TDM switching machine to the soft-switching machine. Compared with traditional TDM switching machine, Softswitching machine can support more users, have higher integration; The softswitch adopts advanced system structure, and can be upgraded independently; softswitch is highly scalable and can support multiple network protocols, can Successfully transition to 3G smootchly, while the traditional TDM switching machine is limited by the hardware architecture ,it can not achieve the above functions; The softswitching machine introduces reliability mechanisms,such as dual homing, which can greatly improve the reliability and usability of a given telecom network.Soft-switching machine occupies a important position in next-generation network (NGN),In the hierarchical stracture of the next-generation network, the soft-switching machine is in the control layer, it exercise the call control of all media gateway in the edge access layer, and complete the communication control between the media gateway.Softswitch supports Call processing protocols,such as ISUP, TUP, SIP, H.323, Chinese NO.1 protocol,etc,Supports Trasmission control protocols,such as TCP, UDP, SCTP, etc,Supports Media control protocols,such as H.248, MGCP, etc,Supports Business application protocols,such as INAP, TCAP, MAP,etc, Supports Maintenance management protocols,such as SNMP, FTP,etc. Softswitch supports multiple IP protocols, has a very strong business expansion ability,Softswitch is an important component of 3G.In this paper, I will begin my work from the core network in Yunnan Province,I will analysis the construction and position of the gageway network in the core network of Yunnan Province.Next, With the newly constructed Chuxiong,Wenshan,and Lijiang Gateway Bureau project as an example,which I particitated in it and organized the mass of the project,I will highlight the network planning and design during the Wenshan Gateway Bureau construction process, Discuss the data configuration process of Wenshan Gateway Bureau.At last,with the actrual implementation situation of the project, I will Discuss the key business configuration and the operational validation, and analysis the soft-switching realization of key business processes detaily.