SIST ETS 300 107 E1:2003

SLOVENSKI STANDARD
01-december-2003
Terminalska oprema (TE) – Mednarodno medsebojno delovanje prehodov
Terminal Equipment (TE); International Videotex interworking between gateways
Ta slovenski standard je istoveten z: ETS 300 107 Edition 1
ICS:
33.160.99 Druga avdio, video in Other audio, video and
avdiovizuelna oprema audiovisual equipment
35.180 Terminalska in druga IT Terminal and other
periferna oprema IT peripheral equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 107
TELECOMMUNICATION December 1991
STANDARD
Source: ETSI TC-TE Reference: DE/TE-01022
ICS: 33.020
TE, Videotex
Key words:
Terminal Equipment (TE);
International interworking between gateways
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the
foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 1991. All rights reserved.
New presentation - see History box

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ETS 300 107: December 1991
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 107: December 1991
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Abbreviations.8
4 Relationship with CCITT Recommendations .8
5 Constraints and requirements on the use of document oriented features .9
5.1 Overview .9
5.2 Display structure and document profile .9
5.2.1 Document profile .9
5.2.2 Display structure.10
5.3 Structures mapped to operational structures.10
5.3.1 Data entry structure.10
5.3.1.1 Use of character lists for checking user input.10
5.3.1.2 Support of system fields .11
5.3.1.3 Constraints on the list of valid commands.11
5.3.2 Application control memory structure.11
5.3.3 Administrative structure.11
5.3.3.1 Cost limit facility.11
5.3.3.2 Bilateral management parameter .12
5.3.4 Special terminal facilities structure.13
5.4 General clarifications on the defaulting mechanism .13
6 Constraints and requirements on the use of communication oriented features.13
6.1 Management of data entry modes .13
6.2 D-INITIATE parameters.14
6.2.1 VI initiate information.14
6.2.2 Storage capacity.14
6.3 Constraints on the use of DTAM operations.14
6.3.1 Relationship between VIA operations and DTAM operations .14
6.3.2 Meaning of interchange format class B CCITT Recommendations (T.415
and T.504).14
History.15

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ETS 300 107: December 1991
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ETS 300 107: December 1991
Foreword
This European Telecommunication Standard (ETS) has been prepared by the Terminal Equipment (TE)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS has been produced in the light of:
a) Videotex services being implemented in different countries using different data syntax profiles (as
described in ETS 300 072 [1]);
b) the International Radio Consultative Committee (CCIR) expressing the view that terminal equipment
1)
compatibility should exist between broadcast Teletext systems for general reception and public
network-based data base systems;
c) the right of different countries to use their existing systems;
d) the possible requirement for transcoding and/or conversion to permit interworking between Videotex
services in different countries;
e) interworking between Videotex services may be provided by using different types of network such
as the Public Switched Telephone Network (PSTN), Packet Switched Public Data Network
(PSPDN), Circuit Switched Public Data Network (CSPDN), Integrated Services Digital Network
(ISDN), etc;
f) the need for Videotex interworking protocols to offer a large degree of compatibility with those
protocols used in other telematic services.
This ETS provides a number of technical provisions to be applied for international interworking between
Videotex services. It specifies the European profile of the international interworking between gateways as
defined in CEPT Recommendation T/SF-59 [2] and ETS 300 105 [3].
This ETS is based upon a number of CCITT Recommendations to facilitate the interconnection of national
Videotex services. The CCITT Recommendations for Videotex interworking are part of the T.500 series of
CCITT Recommendations which contain the application profiles and terminal/gateway characteristics for
telematic services.
NOTE: A full list of references can be found in ETS 300 105 [3], Clause 2 (Normative
references).
1)
The term "Teletext" has not yet been definitively adopted by the CCIR.

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ETS 300 107: December 1991
1 Scope
This ETS defines no additional features to those contained in the relevant CCITT T.500 series of
Recommendations for Videotex interworking.
This ETS specifies constraints and requirements relevant to ETSI, which are in line with the application
profiles and gateway characteristics defined by CCITT.
While the T.500 series of CCITT Recommendations for Videotex interworking contains an incomplete
provisional section concerning Videotex administrative and charging matters, the CEPT working document
TE1 (87) 87, where principles and functionalities are equivalent to the half duplex mode of operation for
Gateway to Gateway Interworking (GGI), may be used as a reference when implementing the
*
administrative and charging matters in Gateway to Gateway Videotex Interworking .
CEPT Recommendation T/SF-59 [2] and ETS 300 105 [3] define two types of interworking between
national Videotex services:
- international interworking between gateways;
- international interworking between a host and a terminal.
This ETS only applies to the international interworking between gateways.
2 Normative references
This ETS incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications
apply to this ETS only when incorporated in it by amendment or revision. For undated references the latest
edition of the publication referred to applies.
[1] ETS 300 072 (1990): "Terminal Equipment (TE); Videotex presentation layer
protocol, Videotex presentation layer data syntax".
[2] CEPT T/SF-59 (1987): "International videotex service".
[3] ETS 300 105 (1991): "Terminal Equipment (TE); International Videotex
interworking".
[4] CCITT Recommendation T.504 (1988): "Document application profile for
videotex interworking".
[5] CCITT Recommendation T.523 (1988): "Communication application profile DM-
1 for videotex interworking".
[6] CCITT Recommendation T.541 (1988): "Operational application profile for
videotex interworking".
[7] CCITT Recommendation T.564 (1988): "Gateway characteristics for videotex
interworking".
[8] CCITT Recommendation T.101 (1988): "International interworking for videotex
services".
[9] CCITT Recommendation T.415 (1988): "Office document architecture (ODA)
and interchange format-open document interchange format (ODIF)".

*
These Administrative and charging functions are provisional pending the result of CEPT SF1 and Tg groups and CCITT Study
Groups I, III, and VIII. They shall be brought in line with the result of the work of the above mentioned groups.

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ETS 300 107: December 1991
3 Abbreviations
For the purpose of this ETS the following abbreviations apply.
CCIR: International Radio Consultative Committee
CCITT: International Telegraph and Telephone Consultative Committee
CEPT: Conférence Européenes des Postes et Télécommunications
CSPDN: Circuit Switched Public Data Network
DTAM: Document Transfer Application Management
EH: External Host
ETS: European Telecommunication Standard
ETSI: European Telecommunication Standard Institute
GGI: Gateway to Gateway Interworking
ISDN: Integrated Services Digital Network
LH: Local Host
ODA: Office Document Architecture
PSPDN: Packet Switched Public Data Network
PSTN: Public Switched Telephone Network
SE: Structure Element
TE: Terminal Equipment
TFI: Terminal Facilities Identifier
VIA: Videotex Interworking Architecture
4 Relationship with CCITT Recommendations
CCITT Recommendations for Videotex interworking:
- CCITT Recommendation T.504 [4], defines the document application profile;
- CCITT Recommendation T.523 [5], defines the communication application profile;
- CCITT Recommendation T.541 [6], defines the operational application profile;
- CCITT Recommendation T.564 [7], defines the gateway characteristics;
- CCITT Recommendation T.101 [8], contains the principles of interworking architecture, protocols
and the data syntaxes.
CCITT Recommendation T.564 [7] contains the specification of all features that may occur in the
communication between gateways for international videotex interworking, and needs no further
clarification by ETSI.
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ETS 300 107: December 1991
CCITT Recommendations T.504 [4] and T.541 [6] select the document oriented features from the T.400
series of CCITT Recommendations by qualifying these features as mandatory, optional, or not used.
CCITT Recommendation T.523 [5] selects the communication oriented features from the T.400 series of
CCITT Recommendations by qualifying these features as mandatory, optional, or not used.
ETS 300 105 [3] is in accordance with the CCI
...