Integrated Services Digital Network (ISDN): Integrated Services Digital Network (ISDN) is a set of communication standards for digital transmission over traditional telephone copper wire as well as over other media. ISDN enables the simultaneous digital transmission of voice, video, data, and other network services. Though once widely used, ISDN has largely been superseded by newer high-speed broadband technologies. However, it may still be used by some legacy systems.
Categories: CC D4: Network Security | CCSP D3: Cloud Platform and Infrastructure Security | CISM D3: Information Security Program | CISSP D4: Communication and Network Security | Security+ D3: Security Architecture | SSCP D6: Network and Communication Security
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