Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions
4 Abbreviations
5 System description
  5.1 Block diagram and identification of elements
      (informative)
  5.2 Videotelephone terminal types
  5.3 Signal structure and procedures
6 Terminal procedures and arrangements related to
  videotelephony call
  6.1 Basic call establishment and mode initialisation
  6.2 Videotelephony communication - Phase C
  6.3 Change of connection arrangements
  6.4 Call clearing - Phase D/E
7 Implementation of supplementary services by
  videotelephony terminals
  7.1 Calling Line Identification Presentation (CLIP)
      and Connected Line Identification Presentation
      (COLP)
  7.2 Multiple Subscriber Number (MSN)
  7.3 Call Completion to Busy Subscriber (CCBS) and
      Call Completion on No Reply (CCNR)
  7.4 Call Deflection (CD)
  7.5 Supplementary services resulting in connection
      interruption
8 Optional enhancements
  8.1 Data ports
  8.2 Encryption
9 Fault indication
Annex A (informative): Detailed steps and procedures
Annex B (informative): Bibliography
History

Abstract

To specify system aspects of a narrowbed visual telephone system.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	TE 4
Supersedes	PRETS 300 145 : MAR 91