Call processing method in next generation network

Abstract

The call processing method for the next generation of network has expanded local connection options in medium gateway control protocol and increased call type parameter to the local connection options. When the medium gateway detects the call service, it informs the medium gateway controller, the medium gateway controller issues connection amending command with the said call type parameter and requires the medium gateway to perform coding / decoding switching. The medium gateway regulates corresponding DSP parameters based on the call type parameter to suit different service transmission. The call type parameter as one expanded parameter has no influence on service and causes no malfunction of the gateway. The present invention makes it possible for the medium gateway to use G.711 coding / decoding service to regulate DSP parameter for different service and this raises the transmission quality.

Description

technical field

[0001] The invention relates to the technical field of communication, in particular to a method for call processing in the next generation network (NGN). Background technique

[0002] The next-generation network (NGN) continues to develop, and the call services carried out on the NGN network, such as fax services and MODEM services (that is, dial-up Internet access services), can be realized in the following two ways:

[0003] One is the transparent transmission method, such as figure 1 As shown, the media gateway controller (MGC) and the media gateway (MG) use the media gateway control protocol (MGCP) to communicate, and the media gateway controller is responsible for controlling the call status related to the media gateway. The conversion of media formats between different networks is completed under the control of the device. A fax machine is respectively connected to a media gateway (MG), using G.711 codec in the IP network. G.711 is a 64kbit / s PCM (Pul...

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