Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions
4 Symbols and abbreviations
5 Description
6 Operational requirements
  6.1 Provision and withdrawal
  6.2 Requirements on the originating network side
  6.3 Requirements on the destination network side
7 Coding requirements
  7.1 Coding of the Facility information element
      components
  7.2 Coding of the Notification indicator information
      element
8 State definitions
9 Signalling procedures at the coincident S and T
  reference point
  9.1 Activation, deactivation and registration
  9.2 Invocation and operation
10 Procedures for interworking with private ISDNs
11 Interactions with other networks
12 Interactions with other supplementary services
13 Parameter values (timers)
14 Dynamic description (SDL diagrams)
Annex A (informative): Signalling flows
  A.1 Request for a three-way conversation
  A.2 Disconnection of one remote user, and retention
      of the other
  A.3 Disconnection of both remote users and terminating
      the call
  A.4 Creation of a private communication with a remote
      user
  A.5 Remote user terminates the call
History

Abstract

Layer 3 ISDN D channel signalling procedures for control of Three Party supplementary service

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	SPS 5
Supersedes	PRETS 300 188 : APR 93