Table of Contents

Foreword
1 Scope
2 Conformance
3 References
4 Definitions
   4.1 External definitions
   4.2 Activating PTNX
   4.3 Deactivating PTNX
   4.4 Inter-PTNX link
   4.5 Interrogating PTNX
   4.6 Path retention
   4.7 Served user PTNX
5 List of acronyms
6 Signalling protocol for the support of SS-DND
   and SS-DNDO
   6.1 SS-DND and SS-DNDO description
   6.2 SS-DND and SS-DNDO operational requirements
   6.3 SS-DND and SS-DNDO coding requirements
   6.4 SS-DND and SS-DNDO state definitions
   6.5 SS-DND signalling procedures
   6.6 SS-DNDO signalling procedures
   6.7 Impact of interworking with public ISDNs
   6.8 Impact of interworking with non-ISDNs
   6.9 SS-DND and SS-DNDO 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): Imported ASN.1 definitions
        relating to numbers
Annex D (informative): Examples of message sequences
Annex E (informative): Specification and Description
        Language (SDL) representation of procedures
History

Abstract

Do not disturb and do not disturb override supplementary services at Q. 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 300 364 : OCT 93