Chapter 6. Voice over Frame Relay

  1. David J. Wright

Published Online: 30 JUL 2004

DOI: 10.1002/0470858621.ch6

Voice over Packet Networks

Voice over Packet Networks

How to Cite

Wright, D. J. (2004) Voice over Frame Relay, in Voice over Packet Networks, John Wiley & Sons, Ltd, Chichester, UK. doi: 10.1002/0470858621.ch6

Author Information

  1. University of Ottawa, Canada

Publication History

  1. Published Online: 30 JUL 2004

Book Series:

  1. Wiley Series on Communications Technology

Book Series Editors:

  1. Professor Barry Evans2 and
  2. Professor David Hutchison3

Series Editor Information

  1. 2

    University of Surrey, UK

  2. 3

    Lancaster University, UK

ISBN Information

Print ISBN: 9780471495161

Online ISBN: 9780470858622



  • DE;
  • FRAD;
  • virtual circuit;
  • DLCI;
  • discard eligibility;
  • committed information rate;
  • CIR;
  • access policing;
  • service level agreement;
  • voice sub-frame;
  • frame fragmentation;
  • case example


The advantages of migrating voice from an enterprise T1/E1 network onto Frame Relay are described as the main business reason for implementing Voice over Frame Relay. The Frame Relay technology and traffic policing options appropriate for voice are described. The standards specific to voice are covered in detail including Service Level Measurement, Voice Sub-Frame Structure, and Frame Fragmentation. The advantages of different types of fragmentation in different parts of the network are identified. The principles discussed in the chapter are illustrated by a case example for an enterprise network.