NGN protocol analyzer
Original Publication Date: 2004-Dec-25
Included in the Prior Art Database: 2004-Dec-25
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Telecommunication networks usually have to be tested after being installed. Up till now it was necessary to execute test scenarios by the use of an additional softswitch (a concept of separating network hardware from network software) or an additional gateway. This method has got some difficulties, e.g. to induce the gateway to generate errors which are part of the test scenario. For the purpose of testing a network (e.g. so called Next Generation Networks, NGN) a simulation software can be used. A new MGCP Simulator software is able to simulate the Media Gateway Control Protocol (MGCP) in the following functions: Media Gateway Controller, Media Gateway, Media Server and Residential Gateway. The MGCP is defined in the RFC 2705 of the IETF (Internet Engineering Task Force). An embodiment of a telecommunication network and some of its elements including a MGCP simulator is shown in Fig. 1. A general vision and description of an embodiment of the MGCP Simulator software is given in the following. Fig. 2 shows a sample of the display of a computer running the software. A glossary of terms used in the figures is assorted in Fig. 22. Definitions: - The Media Gateway or trunk gateway is the interface between the conventional telephone network (Public Switched Telephone Network, PSTN) and voice via IP network (Internet Protocol mechanisms). - The Residential Gateway provides the interface between analog lines and voice via the IP network. - The Media Server provides advertisement via IP network. - The Media Gateway Controller is the agent responsible for signaling between the Media Gateway, the Residential Gateway, the Media Server and the Residential Gateway. - By convention, whenever SW is mentioned in this text, it means the MGCP Simulator software. The software can be installed at any appropriate computer, for example a PC based on model X86 with at least 64MB memory and MS Windows NT, Windows 2000 professional or later versions.