Decomposed switching node and method of operating the same

It is the method of controlling media Gateway using a media Gateway controller, and processing a multiplex session in a telecommunication network, For example, media Gateway and a media Gateway controller supply a command message set, they communicate using a standardization interface protocol like H. 248. The context field for each of a command message to identify the context of media Gateway, A package identity and at least one related characteristic are included as option with the terminal field for identifying one or more terminals of media Gateway, and at least one descriptor for defining the characteristic of a context. This method is a step which generates the command message containing the multiplex descriptor which contains a package identifier in a media Gateway controller while having the above-mentioned structure, The step which identifies the package carried out in media Gateway in order that a package identifier may process a multiplex session, It has a step which transmits the command message generated in media Gateway from the media Gateway controller, and a step which establishes the context identified in the message in media Gateway according to the specified package. Preferably, a multiplex descriptor includes at least one characteristic which is either a circuit quota map or a continuous or discontinuous service type.