Key Technical Solution Research And Development For The NGN Trunking Media Gateway

The main engines for accelerating telecommunication market include technique innovation, profit increase, competition intensification, and market reallocation. Today, rapid increase on the data business is the trend of the market, with the fact of more users for mobile business than fixed business. Therefore the market trend will focus on the consolidation between voice and data, with new network architecture. The NGN comes out based on the above background.As a key equipment of NGN, the trunking media gateway provides the conversion between PSTN and packet network. This paper discusses the market foreground, basic network architecture, key techniques and application, and development structure of the trunking media gateway.This paper introduces the basic features, basic architecture, application mode, and functional system of NGN. From theory point of view, this paper studies the key techniques of VoIP, like quality of service, signaling and protocols. From application point of view, this paper studies the application, network architecture, functional structure and protocols stack-up of the trunking media gateway, to develop an achievable structure of the trunking media gateway. The SFM and PIM boards have been developed. Lastly, this paper prospects for the trunking media gateway based on the ATCA platform,...