An Introduction to Voice Over IP

Course

Inhouse

Price on request

Description

  • Type

    Course

  • Methodology

    Inhouse

  • Duration

    3 Days

Increased awareness of the benefits of voice and data integration. Understanding of the signal processing, encoding and Quality of Service managment technologies necessary for transmitting voice and video streams over packet switched networks. Ability to interpret and evaluate the many standards and protocols in this area. Knowledge of how to interface VoIP. Suitable for: The course is aimed at those who already have a basic understanding of networks, datacomms and TCP/IP who will be responsible for evaluating, designing or deploying VoIP networks.

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Subjects

  • IP

Course programme

Overview
Technical developments over the last 5 years or so have made the use of IP networks for telephony and video conferencing applications a reality. It is now possible to contemplate replacing separate voice and telephony networks with a single IP network.
This course covers the principles and theory underlying VoIP , the various design options available and possible migration paths from a two-network to a one-network system. It also covers the coexistence of VoIP networks with regular telephone networks.
The emphasis in this course is on understanding the technologies, protocols and standards that make up VoIP and IP Telephony systems.
Network design, sizing , management and migration issues are covered.
The new application development possibilities raised by VoIP are covered - especially in connection with the development of next generation call centres, and new Web based customer support applications.
The implications of combining VoIP technology with XML technology are also discussed.

Key Skills
  • Increased awareness of the benefits of voice and data integration.
  • Understanding of the signal processing, encoding and Quality of Service managment technologies necessary for transmitting voice and video streams over packet switched networks
  • Ability to interpret and evaluate the many standards and protocols in this area
  • Knowledge of how to interface VoIP networks with PABX and Centrex systems, as well as classical Computer Telephony Integration (CTI) based systems
  • An enhanced awareness of services and applications that can be developed by making use of VoIP and XML Voice - especially in the areas of Customer Relationship Management, and Customer Support

Course Contents
An overview of current voice and data networks
  • PSTN (Public Switched Telephone Network)
  • Packet switched data networks
A short history of the technologies that make VoIP possible Risk and Cost Benefit Analysis of VoIP Commercial possibilities of VoIP
  • Next generation Call Centres
  • E-Commerce
  • Customer support services
  • Direct Marketing possibilities
Network engineering issues
  • Strategies for packetising voice for sending over IP
  • Signaling for VoIP - H323 and the protocols under its umbrella (H.225/Q.931, H.245 and RAS)
  • Addressing - E.164 to IP address mapping, DNS, and mapping services
  • Voice quality measurement and control
  • Factors affecting voice quality - delay, loss
  • Voice coding technology - coding algorithms and techniques and CODECS
  • Capacity planning and interaction between voice and data streams on the same network
Practical uses of VoIP
  • Making phone to phone, desk to desk and desk to phone calls
  • Multimedia conferencing - with mixed voice, video and data
  • International VoIP phone calls
  • Internet linked call centres
  • VoIP enabled e-commerce web sites
Technical
  • Interfacing with a PSTN
  • Installing and configuring a PSTN Gateway
  • IP PABXs
  • Session Initiation Protocol (SIP)
  • CPL (Call Processing Language) Feature Servers
  • Implementing CPL features
  • XML Voice and where it fits in
  • Voice Mail Server - design and setup
  • System monitoring
  • Provisioning Servers
  • Quality of Service and Billing
  • RTP and Real Time Voice
  • Design issues
    • traffic engineering and profiling
    • estimating voice traffic bandwidth requirements
    • estimating delay and loss under various loading conditions and traffic shaping strategies
    • differentiated services vs. per session resource reservation
    • QoS issues - RSVP, IP precedence, MPLS
    • fair queuing algorithms
  • VoIP and IPv6

An Introduction to Voice Over IP

Price on request