1 Introduction
2
Scope and field of application
2.1 National videotex services
2.2 Videotex interworking definition
2.3 Relation to other Recommendations
3
References
4
Definitions
5
Abbreviations
6
Model of the communication between local and external host
6.1 International videotex interworking between gateways
6.2 Position of videotex interworking relative to OSI
6.3 Organization of the videotex interworking
7
Relation between videotex and DTAM service
8
Use of lower layer services
9
General structure of the VIA
9.1 General data structure
9.2 Attributes
9.3 General VIA operation
10 Videotex structure
10.1 Display structure
10.2 Data entry structure
10.3 Administrative structure
10.4 Special terminal facilities structure
Annex A – Layout structure and operational structure
Annex B – Minimum size of data structures