Obtaining worldwide agreement on the basic rate interface standard was expected to lead to a large user demand for ISDN equipment, hence leading to mass production and inexpensive ISDN chips.
However, the standardization process took years while computer network technology moved rapidly.
[1] For home use the largest demand for new services was video and voice transfer, but the ISDN basic rate lacks the necessary channel capacity.
[3] Standards were issued by the Comité Consultatif International Téléphonique et Télégraphique (CCITT, now known as ITU-T), and called "Recommendations".
[7][8] The designated technology for B-ISDN was Asynchronous Transfer Mode (ATM), which was intended to carry both synchronous voice and asynchronous data services on the same transport.