Method for acquiring calling information under soft switching architecture and next generation network (NGN) system

Abstract

The invention relates to a method for acquiring calling information under a soft switching architecture and a next generation network (NGN) system. The method is characterized by: an automatic number identification (ANI) request event and an ANI request signal are defined in a H.248 protocol channel associated signaling packet in advance, a calling information triggering event is set and acquired in a media gateway controller (MGC); when detecting ANI request signaling sent by an inbound end office, an out media gateway (MG) sends the ANI request signal to the MGC; after the ANI request signal is received, the MGC requests the calling information from an incoming office and send the calling information returned by the incoming office to the out MG; the out MG sends the calling information to an outbound end office. The NGN system comprises end offices, the MG and the MGC. By using the method and the system of the invention, the NGN system under the soft switching architecture supports the calling using the traditional channel associated signaling and also supports the calling using the channel associated signaling with the ANI request.

Description

technical field [0001] The invention relates to the field of communication networks, in particular to a method for acquiring caller information under a softswitch framework and an NGN system. Background technique [0002] The next generation network (Next Generation Network, NGN) system takes the Internet Protocol (Internet Protocol, IP) network as the core, and realizes the integration of the traditional communication network and the IP network. Soft Switch technology (Soft Switch, SS) is the core technology of NGN, using the idea of ​​gateway separation, the gateway is divided into media gateway (Media Gateway, MG), signaling gateway (Signal Gateway, SG) and media gateway controller (Media Gateway Controller, MGC) three types, to realize the structure of separation of NGN bearer and control. [0003] Caller information is the key information to realize many communication services, such as billing, call display, etc. In traditional channel-associated signaling calls, calle...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method and NGN system for obtaining caller information under the softswitch framework, so as to solve the problem that the existing H.248 protocol does not support channel-associated signaling with ANI requests and that the caller information cannot be displayed in each session. Phase Acquisition Issues

Images