Method of adding a new PBX and new PBX port to an existing PBX network

摘要

There is provided a method of adding a new private branch exchange interface (PBX port) to a data communication network having a number of existing PBX ports, each coupled to respective ones of data transport nodes for sending and receiving via high speed data links (e.g., T-1 lines) customer data to each of the other nodes. A network management system computer having a database is coupled to the network. The method of adding a new PBX port includes the steps of: determining with the aid of the computer database a suitable address for the new PBX port; determining with the aid of the computer database a correct address of a selected one of the existing PBX ports; searching the database for all other addresses of existing PBX ports to which the selected one PBX port is connected and compiling a list of such other addresses; and establishing a direct dedicated channel ("frame relay channel") for communication between the address of the new PBX port and each one of the addresses of the existing PBX ports such that PBXs connected to the respective PBX ports are able to communicate directly with any of the new and existing PBXs via the data network and its nodes.