ISDN stands for Integrated Services Digital Network. The Integrated Services aspect embodies combined voice and data services. The 'Digital' in ISDN means the information transmitted and the associated signals are sent as a series of on-off electrical pulses. The network element of ISDN is a system of interconnected points and paths.

• - Primary Rate Service
• - ISDN PRS
• - Customer Premise Equipment
• - Evolution From Analog to Digital Network Components

To learn more about the functionality and features of Integrated Services Digital Network (ISDN), select the 'Lessons' tab above.