Table of Contents

Foreword
1 Scope
2 Conformance
3 References
4 Definitions
   4.1 External definitions
   4.2 Inter-PTNX link
   4.3 Path retention
5 List of acronyms
6 Signalling protocol for the support of SS-CO
   6.1 SS-CO description
   6.2 SS-CO operational requirements
   6.3 SS-CO coding requirements
   6.4 SS-CO state definitions
   6.5 SS-CO signalling procedures for activation,
       deactivation and registration
   6.6 SS-CO signalling procedures for invocation
       and operation
   6.7 SS-CO impact of interworking with public ISDNs
   6.8 SS-CO impact of interworking with non-ISDNs
   6.9 SS-CO parameter values (timers)
Annex A (normative): Signalling protocol for the
        support of Path Retention
Annex B (normative): Protocol Implementation Conformance
        Statement (PICS) Proforma
Annex C (informative): Examples of Message Sequences
Annex D Specification and Description Language (SDL)
        representation of procedures
History

Abstract

Stage 3 of call offer supplementary service at Q ref pt. See DTR/ECMA-0002 (ECMA-TR/SVC) for service description. See ENV41005 for definition of stage 3. See ENV41004 for definition of Q reference point. To contain PICS proforma

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	ECMA TC 32
Supersedes	PRETS 300 362 : OCT 93