August 2006
Intermediate to advanced
648 pages
15h 51m
English
Content preview from Cisco Voice Gateways and Gatekeepers
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Chapter 5. Circuit Options
In this chapter, you will learn about the various circuit types that Cisco voice gateways support, in addition to signaling methods and available features of circuits.
Note
For more information on the implementation details, see Chapter 6, “Connecting to the PSTN,” and Chapter 7, “Connecting to PBXs.”
This chapter helps you to understand the following:
• Analog circuit options and signaling methods
• Digital circuit options and signaling methods
• ISDN technology
• Voice tuning on different types of circuits
Circuit Signaling
All voice circuits use signaling methods to communicate. These signaling methods vary based on the type of circuit, but all circuits must communicate the same types of information. This information ...
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