Abstract :
Multi-rate integrated services digital network (ISDN) is a new technology for providing dialed-up, circuit-switched, isochronous communications for bandwidths from 128 kb/s to 1.536 Mb/s (DS-1) or 1.920 Mb/s (CEPT-1). Multi-rate ISDN provides a simple way to extend ISDN network services to match the higher bandwidth requirements emerging for videoconferencing, multimedia, imaging, and other high-speed applications. Using this technology, network service providers can offer high-speed connectivity within the boundaries and benefits of existing, circuit-switched, central office and transmission equipment. Only minor changes are required in the operations administration and maintenance and provisioning (OAM&P) procedures associated with multi-rate ISDN, versus existing ISDN transmission and central office maintenance procedures.<>
Keywords :
B-ISDN; circuit switching; multimedia systems; telecommunication services; telecommunication standards; teleconferencing; 128 kbit/s to 1.920 Mbit/s; CEPT-1; DS-1; ISDN network services; OAM&P; bandwidth requirements; circuit-switched equipment; dialed-up circuit-switched isochronous communications; high-speed application; high-speed connectivity; imaging; multimedia; multirate ISDN; multirate integrated services digital network; network service providers; operations administration and maintenance and provisioning; videoconferencing; Bandwidth; Circuits; ISDN; Intserv networks; Joining processes; Microcomputers; Microprocessors; Teleconferencing; Video codecs; Wideband;