Integration of the Procedure of Access to a Multiple Service Integrated Network.

The principles of a systematic approach to an analysis of problems and technical aspects relative to both a possible integration of text communication services and to the techniques of user access to an integrated multiple service network are presented. Stratified architecture models for communication control functions, concepts of a virtual terminal and the network of access to the services, end-to-end communication protocols in accordance with the ISO and CCITT instruction and the procedures of service treatment in accordance with those coming into use at the international headquarters on VIDEOTEX, TELETEX and FACSIMILE.