The Discuss About VOIP In Core Network Of China Mobile

The construction of VoIP in core network of China Mobile is the key step to promote the reform of core network, and the network flatting goal. The revolutionary transformation has decided to network architecture network maintenance, network planning and network optimization technology to realize the update, overall planning. The main purpose of this paper is to solve the question in the construction of VoIP Softswitch equipment, including traffic or signalling network problems, how to load current business problem, how to realize the smooth transition of problem, and IP network quality and voice quality problems and so on.This paper through studying the softswitch IP related literatures and the direction suggestion from Group company,combined with the actual situation of network, discusses how to promote the VOIP in softswitch equipment, Guangdong mobile softswitch equipment, By establishing test based on IP bearing, the performance evaluation can CS filed after reforming in order to verify the network performance index and voice quality, Finally, through the renovation of IP research put forward the IP network planning, maintenance and optimization proposals.Through a series of reform in engineering practice has proved that VOIP in core network put forward network stability, business now keep in succession, follow the "nearby access IP, far from exceed IP " and "site enter" wait a few big principle, is accord with reform objectives. Put the soft exchange IP network maintenance concerned KPI and into the soft switch statistical standard management, the soft switch the speech key performance indicators:IP packet jitter, lost package rate, such as SIGTRAN Qos soft switching operation and maintenance indicator and the soft exchange network were put into the health examination work.This paper studys the softswitch network technology, combined with network structure of Guangdong Mobile, discuss principles of the softswitch IP words of the methods and modification methods, gives a reference to Softswitch equipment improvement work in voice IP load bearing speech and IP network planning, construction, maintenance and operation, etc for GSM network in the future.