Technology - Internet - Telephony and Voice over IP (archive)

Synopsis

The advantages and disadvantages of VoIP calls across the Internet are examined. We consider many potential benefits and pitfalls of VoIP in large corporate networks ā€“ and how it may be integrated with the PABX and software systems, using the WAN with QoS. Circuit vs. packet switching and the many contrasts between the Internet and the telephone network are discussed in detail.

Table of Contents

  • 1. Synopsis
  • 2. VoIP
    • 2.1 UDP packets preferred for voice
    • 2.2 Private networks and the Internet
    • 2.3 QoS ā€“ Quality of Service
  • 3. Internet telephony
    • 3.1.1 Computer to computer telephony
      • 3.2 Cost-effectiveness of Internet telephony
        • 3.2.1 Circuit vs. packet switching
        • 3.2.2 Advantages and disadvantages of Internet telephony
    • 4. VoIP on private networks
      • 4.1 Costs and problems of VoIP
      • 4.2 Additional benefits of VoIP
    • 5. Comparing the Internet and the telephone network
    • Exhibit 1 ā€“ Contrasts between the telephone network and the Internet

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    Licence Information

    Focus Report Profile

    Technologies

    Internet
    Telecoms Infrastructure

    Number of pages 8

    Status Archived

    Last updated 9 Feb 2004
    Update History

    Analyst: Kylie Wansink

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