Table of Contents

Foreword
1 Scope
2 Normative references
3 Abbreviations
4 Additions and/or Clarifications to CCITT
  Recommendation E.172
  4.1 CCITT Recommendation E.172, subclause 10:
      Signalling capability
  4.2 CCITT Recommendation E.172, subclause 7(k):
      Connection history
  4.3 CCITT Recommendation E.172, subclause 8:
      Relationship between requested services and
      transmission medium requirement values
  4.4 CCITT Recommendation E.172, annex 1
  4.5 CCITT Recommendation E.172, annex 3
5 Additional information on parameters used for
  routeing
  5.1 Use of the transmission medium requirement
      parameter
  5.2 Relationship between requested service and TMR
      values
  5.3 ISUP preference indicator values for ISDN
      services
  5.4 Evaluation of the propagation delay counter for
      routeing purposes
  5.5 DCME links and their influence on routeing
6 Impact of services interworking, terminal
  interworking and fallback on routeing
7 Selection of path/traffic distribution
Annex A (informative): Examples of the effect of PD and
                       DCME on routeing
Annex B (informative): Background information on
                       propagation delay
  B.1 General
  B.2 Transmission mediums and systems taking a
      considerable propagation delay
  B.3 Indication of mobile originated calls
  B.4 Routeing for mobile originated calls
  B.5 Threshold
  B.6 Examples of calculation of the 70 ms threshold
Annex C (informative): Bibliography
History

Abstract

Provides guidance on call routing for the ISDN services covered by ISUP version 2

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	NA 2
Supersedes	PRETS 300 334 : JUN 93