ETR 272 : 20001
Current
The latest, up-to-date edition.
TERMINAL EQUIPMENT - (TE) - AUDIO-VISUAL RETRIEVAL SERVICES ON NARROW-BAND NETWORKS - PRIORITY SETTING AND DESCRIPTION
Hardcopy , PDF
English
Foreword
1 Scope
1.1 Objectives
2 References
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 Overview
4.1 Scenario overview
4.2 Status overview
4.3 Conclusion from overview
5 Criteria for scenario selection
5.1 Service criteria
5.2 Availability of base standards
5.3 Availability of terminals
5.4 Conclusions
6 Scenarios for which the base standards are available
6.1 Access for an ISDN videophony terminal to an audio-visual
database using DTMF
6.2 Access for a PSTN videophony terminal to a PSTN service
centre using DTMF
6.3 Access to an enhanced Videotex service using a combined
Videotex and ISDN videophony terminal
7 General framework for retrieval and audio-visual services
7.1 Framework description
7.2 Framework structuring
7.3 Innovation of the framework
8 Conclusions
9 Recommendations
Annex A: (informative) ITU-T Recommendation T.120 series for
audiographic teleconferencing overview
History
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