Implementing the Illinois Bell/McDonald's ISDN Trial: A Technical Overview
01 January 1987
This paper describes the trial jointly undertaken by Illinois Bell, Ameritech Services, AT&T, and Bell Communications Research (Bellcore) to evalute the use of Integrated Services Digital Network (ISDN) features by the McDonald's Corporation. The serving vehicle is the AT&T 5ESS(TM) Digital Switch equipped with a new software package and new line interface and packet switching hardware. CCITT standards form the foundation of the Customer Premises Equipment (CPE) interface and were followed where available in the implementation of ISDN on the 5ESS(TM) Switch.