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Maximizing Business Communication: Benefits and Components of VoIP Networks

Discover the advantages of VoIP networks, including improved efficiency, cost savings, and enhanced productivity. Learn about legacy analog interfaces, digital interfaces, call control phases, and distributed vs. centralized call control. Explore the seamless coexistence of analog and VoIP applications.

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Maximizing Business Communication: Benefits and Components of VoIP Networks

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  1. 2.1 - Introducing VoIP Networks

  2. Objectives • Describe the benefits of a VoIP network. • Describe the components of a VoIP network. • Describe the legacy analog interfaces used in VoIP networks. • Describe the digital interfaces used in VoIP networks. • Explain the 3 phases of call control. • Compare and contrast distributed and centralized call control.

  3. Benefits of a VoIP Network • More efficient use of bandwidth and equipment • Lower transmission costs • Consolidated network expenses • Improved employee productivity through features provided by IP telephony: IP phones are complete business communication devices. Directory lookups and database applications (XML) • Integration of telephony into any business application • Software-based and wireless phones offer mobility. • Access to new communications devices (such as PDAs and cable set-top boxes)

  4. Components of a VoIP Network

  5. Legacy Analog and VoIP Applications Can Coexist

  6. Legacy Analog Interfaces in VoIP Networks

  7. Legacy Analog Interfaces in VoIP Networks 5 1 3 2 4 1

  8. Digital Interfaces

  9. Call Setup • Checks call-routing configuration • Determines bandwidth availability If bandwidth is available, setup message is passed If bandwidth is not available, busy signal is generated

  10. Call Maintenance • Tracks quality parameters: Packet loss Jitter Delay • Maintains or drops call based on connection quality

  11. Call Teardown • Notifies devices to free resources • Resources are made available to subsequent calls

  12. Distributed Call Control

  13. Centralized Call Control

  14. Self Check • Which type of call control uses a call agent to route the call? • What is a DSP? • Name 3 types of analog interfaces used at gateways. • What are the 3 components of basic call control? • What phase of call control involves determining if bandwidth is available to place the call?

  15. Summary • The benefits of a VoIP network include more efficient use of network bandwidth and equipment, lower cost and consolidated expenses. • Legacy analog and VoIP applications and devices can coexist. • The 3 stages of a VoIP call include call setup, call maintenance, and call teardown. • VoIP can be deployed in a centralized or distributed environment.

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