信令网关

第二部分是对信令网关SG的介绍。由于信令网关是作用于NO。

The second part introduces Signaling Gateway ( SG ) .

在软交换网络体系中，IP中继媒体网关主要用来完成电路交换网侧与IP分组网侧媒体流的转换，该网关同信令网关一起完成电路交换网与IP网络的互通。

Trunking Media Gateway transmits media stream between IP and circuit switching networks , implements interworking of IP and circuit switching networks with signaling gateway in softswitch network .

接着对信令网关中的消息路由机制和信令消息在IP网络中的可靠传输机制进行了相关研究。

Following , researches messages routing mechanism in SG and credible transfer of signalling messages in IP network .

在NGN中，VOIP网关分为媒体网关和信令网关。

VOIP gateway is classified by media gateway and signal gateway in NGN .

建设语音MPLSVPN网和中继，信令网关，实现骨干层和边缘层的设计。

Build tone MPLS VPN , TG , and SG , realize skeleton and brim level design .

S100信令网关既可以工作信令代理方式，又可以工作在信令转接方式下。

S100 signaling gateway can be used as a signaling agency and a signaling transfer point .

基于SIP的VoIP-TETRA信令网关的研究和实现

Research and Implementation of VoIP-TETRA Signaling Gateway Based on SIP

这种消息作为建立的消息由信令网关发回给MGC。

This information is sent as a setup message by the signaling gateway back to the MGC .

反过来，有关的地址信息通过信令网关传送给MGC。

In turn , the relevant address information is passed from a signaling gateway to an MGC .

本论文采用的是M3UA协议实现S100信令网关的信令互通功能。

M3UA protocol is adopted to complete interworking function of S100 signaling gateway in the paper .

本文首先介绍了信令网关协议栈的参考模型，以及IETF建议的流控制传输协议的特点，最后总结了SCTP协议优于TCP协议的一些特性。

This paper firstly introduces the reference model of SG protocol stack and the SCTP feature of IETF . Lastly it generalizes the excellent performance that SCTP than TCP .

然后，为了能访问到呼叫方和被叫方的地址信息，电话局向信令网关发一个SS7消息。

The central office then sends an SS7 message to a signaling gateway in order to get access to calling and called address information .

文中介绍了IP综合接入平台及其形成原因，分析了与PSTN互连的两种方案，并指出采用其中的信令网关方案是发展的方向。

This paper introduced IP Integrated Access Platform and the reason of its emerging . Two schemes of interconnection between LAP and IP network were analyzed and the one applying Signal Gateway is the evolution direction .

当前解决SIP和H.323终端通信的方案一般是在SIP系统和H.323系统之间增加一个协议转换的信令网关，并没有完全融合SIP和H.323协议的VOIP集成系统。

Nowadays , the solution of communication between Sip and H.323 end-point is using a Signal Gate-Way to transform protocol . There are not Integrated VOIP System which can entirely inosculate SIP and H.323 protocol .

本文是对以软交换为核心的下一代网络中基于M3UA协议的信令网关进行研究、设计和实现。

This thesis mainly describes the study and implementation of M3UA_based Signaling Gateway in NGN .

最后，通过对网关的单元测试和系统功能测试，验证了SIP与TETRA信令网关的实现方案，为后续的研究提供了参考。

Finally , by unit tests and system functional tests of the gateway , the implementation scheme of the signaling gateway between SIP and TETRA is verified , which provides a reference for future study .

软交换涉及的产品主要有负责核心控制的软交换设备、应用服务器、媒体服务器、接入网关、中继网关、信令网关、IAD设备。

Products softswitch involves mainly include : softswitch equipment for core control , application server , media server , access gateway , relay gateway , signaling gateway , and IAD equipment .

接着研究了实现信令网关的几个关键技术，介绍了信令网关相关的协议，包括七号信令协议、SIGTRAN协议簇；

The paper introduces protocols correlated with Signalling Gateway , including No. 7 Signalling protocols 、 SIGTRAN protocols cluster ;

信令网关作（SG）为软交换网络和电路交换网络的控制信令消息转换互通节点，是整个软交换网络的重要功能实体，负责对信令消息进行中继、翻译或终结处理。

Signaling Gateway who is the exchange node controlling signaling information between soft-switched networks and circuit-switched network is an important functional entity of the entire NGN , and Responsible for signaling infomation to relay , translation or end treatment .

阐述了信令网关的系统逻辑结构和CPCI信令处理系统，提出了线性分布式多模块方案，并对其做了详细的阐述。

An analysis on SG 'S system logical structure and CPCI signaling management system is made . Secondly , the linearity distribution multi-module project is brought forward with a detailed description on it .

本文的研究目标是如何实现对基于分布式运行环境的大容量信令网关（LSG）的网络管理代理。

The reserch object of this article is to design and implement a network management agent on a distributed , large scale signaling gateway ( LSG ) .

下一代网络中高可靠信令网关的研究与实现

Research and Realization of Signalling Gateway with High Reliability in NGN

软交换信令网关软件模型设计与实现

Design & Implementation of SG Software Model in Soft Switch System

呼叫中心7号信令网关的设计

The method of SS7 gateway design in call center

信令网关集中多模块方案的研究与设计

Research and design of signaling gateway centralized multi-module project

7号信令网关的协议模型设计与应用

Design for Protocol Model of SS7 Signaling Gateway

七号信令网关及其新发展

No.7 Signaling Gateway and Its New Development

组建电信级信令网关

Building Signaling Gateways that Meet Carrier-Grade Requirements

七号信令网关的实现方法

The Ways for Implementing Gateway of NO.7

信令网关完成各种传统网络的信令消息与分组网络中传送的信令消息分组的转换。

Signal gateway implements the transform of signal format between traditional network and IP based network .