Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions, symbols and abbreviations
  3.1 Definitions
  3.2 Symbols
  3.3 Abbreviations
4 General considerations
  4.1 General
  4.2 Working assumptions
5 Miscellaneous interworking aspects
  5.1 Interworking handling of the echo control device
      indicator (or the incoming half echo suppressor
      indicator) of the address complete message in
      ISUP (or TUP/TUP+)
  5.2 Handling of the called party's category and the
      charge indicator in case of interworking TUP/TUP+
      to ISUP
  5.3 Transfer of no charge or charge information in
      the answer message in case of interworking
      TUP/TUP+ to ISUP
  5.4 Simple segmentation
  5.5 Handling an early ACM when interworking from TUP
      to ISUP
6 Interworking
  6.1 Interworking from Signalling System ISUP to
      Signalling System No.5
  6.2 Interworking from Signalling System ISUP to
      Signalling System R2
  6.3 Interworking from Signalling System ISUP to
      Signalling System TUP
  6.4 Interworking of Signalling System No.5 to
      Signalling System ISUP
  6.5 Interworking from Signalling System R2 to
      Signalling System ISUP
  6.6 Interworking from Signalling System TUP to
      Signalling System ISUP
  6.7 Interworking from Signalling System ISUP to
      Signalling System TUP+
  6.8 Interworking of Signalling System TUP+ to
      Signalling System ISUP
Annex A (informative): Echo control procedure in case
        of interworking
  A.1 Interworking from Signalling System No.5/R2 to
      ISUP
  A.2 Interworking from Signalling System ISUP to
      No.5/R2
  A.3 Interworking from No.5/R2 to ISUP version 2
  A.4 Interworking from ISUP version 2 to No.5/R2
History

Abstract

Specifies interworking between ISUP version 2 and previous signalling systems (eg ISUP version 1, CCITT No 5, R2, TUP,...)

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SPS 1
Supersedes	PRETS 300 360 : DEC 93