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This chapter delves into Integrated Services Digital Network (ISDN) and its fundamental functions, illustrated through various figures. It discusses the layers of ISDN, different types of connections like BRI (Basic Rate Interface) and PRI (Primary Rate Interface), along with functional groupings and reference points. Additional insights include voice and data communication over analog telephone networks and the transition from analog to digital services. This comprehensive overview is essential for understanding the architecture and applications of ISDN in modern telecommunication.
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Chapter 16 Integrated Services Digital Network (ISDN)
Figure 16-1 ISDN Services
Figure 16-2 Voice Communication over an Analog Telephone Network
Figure 16-3 Voice and Data Communication over an Analog Telephone Network
Figure 16-4 Analog and Digital Services over the Telephone Network
Figure 16-5 IDN
Figure 16-6 ISDN
Figure 16-7 BRI
Figure 16-8 PRI
Figure 16-9 Functional Grouping
Figure 16-10 Reference Points
Figure 16-11 ISDN Layers
Figure 16-12 Simplified Layers of ISDN
Figure 16-13 BRI Interfaces
Figure 16-14 S Interface
Figure 16-15 2B/1Q Encoding
Figure 16-16 BRI Frame
Figure 16-17 BRI Topology
Figure 16-18 PRI Interfaces
Figure 16-19 PRI Frame
Figure 16-20 LAPD Address Field
Figure 16-21 Network Layer Packet Format
Figure 16-22 Call Reference Field
Figure 16-23 Information Elements
Figure 16-24 Information Element Types
Figure 16-25 Addressing in ISDN
Figure 16-26 Bit Rates for Different Applications
Figure 16-27 B-ISDN Services
Figure 16-28 B-ISDN Accesses
