What You Didn T Know About Isdn
ISDN was born out of necessity when analog networks constantly failed and proved to be inefficient for distance connections. In the 1960s, a system called a packet-based, and digital switching system was introduced. Later, in 1988, the UN-based International Telecommunications Union (ITU), recommended ISDN as a new system to deliver data for many companies. Communication providers took time to come up with this technology due to varying operating systems, even in major companies....