In the
1980s the
telecommunications industry conceived that digital services would follow much the same pattern as voice services, and conceived a grandiose vision of end-to-end
circuit switched services, known as the Broadband Integrated Services Digital Network (B-ISDN). This was conceived in the
1990s as a logical extension of the end-to-end circuit switched data service,
ISDN.
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BROADBAND INTEGRATED SERVICES DIGITAL NETWORK. BISDN