The Application Research For NGN

With the development of business and technique , the traditional telecommunication company are busy in transforming.Now the telephone network, computer network and cable TV network are tended in fusion, and the pressure on the telecommunication network is more and more. The load on the telecommunication network enlarges continuously, and the need of business is tended in diversification, So the telecommunication company must provide more and more multi-medias business to absorb the customer.Unfortunately these new variety business are not providing by current PSTN, PLMN network,so the network must change to soft switch and intelligence.The NGN is a marker of the telecommunication history.It is a kind of synthesizing, open network frame.It can provide the operation of voice, data and multi-media etc. .By being optimizing the network construction,the NGN brings us not only the fusion of the network, but also the fusion of the business.It makes the network of exchanging packet can inherit the net abundant business function in the electric exchanged circuit.At the same time,it can provide quickly the new business that the old network cann't provide at the scope of whole net .Along with the perfect of network and the continuously mature of the key technic ,soft switch has been got the extensive application.It brings new profits to increase for the telecommunication company.On the one hand the native net of Guilin telecom faces the market competition to keep on requiring new business and new function. on the other hand, the traditional F150 exchanger have run for more than 15 years ,exsiting the problem of the network safety and network managing ,so the technical NGN in soft switch network is the best choice.This text has introduced the main technique and protocol that NGN is involved .It expatiates the purpose of the native net of Guiin telecom to reform to the network of NGN in current. It has been told mainly that how to design the project of network reform and how to take the project into practice.It also analyzes the safety of the existing network exchanges and deliver of the layer, and put forward the key problem for the telecom company that the network reforms must be attent on, for example:the continuance of business, the smooth transition of the network, the safety of the network and the management of the network etc..