Chapter 3. Voice over IP (VoIP)

THE FOLLOWING CCNA VOICE EXAM OBJECTIVES ARE COVERED IN THIS CHAPTER:

  • Describe the components of the Cisco Unified Communications Architecture.

    • Describe how the Unified Communications components work together to create the Cisco Unified Communications Architecture.

    • Describe the function of Contact Center in a UC environment.

  • Describe VoIP components and technologies.

    • Describe RTP and RTCP.

    • Describe the function of and differences between codecs.

    • Describe H.323, MGCP, SIP, and SCCP signaling protocols.

  • Describe gateways, and dial peers to connect to the PSTN and service provider networks.

    • Describe the function and application of voice gateways.

    • Describe the function and operation of call legs.

    • Describe voice dial peers.

This ...

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