Digital PBX With Integrated Local Area Network
Original Publication Date: 1984-Jun-01
Included in the Prior Art Database: 2005-Feb-04
A digital PBX (Private Branch Exchange) for combined voice and data can be constructed to support both normal point-to-point circuit switched traffic as well as any-to-any packet switched traffic at the same time. A PBX is normally used for establishing point-to-point connections to allow for the subscribers to communicate with one another in pairs. Using a combined voice and data PBX, one can, in addition to establishing normal telephone calls, also set up point-to-point connections for data equipment. For many types of data equipment, such as display terminals, the traffic pattern is not point-to-point. Instead a large number of terminals may want to communicate with only one or very few main computers of a corporation, containing large data bases.