Figure 41 ADPCM adaptive differential pulse code modulation

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Figure 4-1 ADPCM (adaptive differential pulse
code modulation)
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Figure 4-2 Local exchange network
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Figure 4-3 Virtual Private Network
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Figure 4-4 Interoffice Signaling
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Figure 4-5 Call Setup and Transmission
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Figure 4-6 Call setup using common channel
signaling
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Figure 4-7 SS7 Architecture
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Figure 4-8 SS7 Layers Compared with the OSI
Reference Model
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Figure 4-9 A Digital Central Office
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Figure 4-10 An AIN (Advanced Intelligent Network)
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Figure 4-11 IXC Tandem Switch Architecture
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Figure 4-x An Intelligent Network
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Figure 4-7 SDH/SONET Architecture
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Figure 4-11 Common Channel Signaling
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Figure 4-12 SS7 Network
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Figure 4-1 Digitizing a Voice signal
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Figure 4-5 SONET/SDH Architecture
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Figure 4-6 Terminal Multiplexers and Add/Drop
Multiplexers
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Figure 4-8 SS7 Layers Compared with the OSI
Reference Model