SIST ETS 300 107 E1:2003

• Abstract:

  Further handling of T/TE 06-20, 21, 22 after the completion of the public Enquiry and attempt to allign with CCITT Rec. T.101 (1992)

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.160.99 - Other audio, video and audiovisual equipment
• ICS: 35.180 - IT Terminal and other peripheral equipment
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI ETS 300 107 ed.1 (1991-12) - Terminal Equipment (TE); International Videotex interworking between gateways

SIST ETS 300 107 E1:2003 is the Slovenian identical standard to ETS 300 107 Edition 1, originally prepared by ETSI. It specifies constraints and requirements for international Videotex interworking between gateways, so implementers know how gateway-based Videotex services should exchange document-oriented and communication-oriented features across networks. The document is a companion to the CCITT T.500 series and ETS 300 105, and it narrows that profile for use in ETSI environments.

What does SIST ETS 300 107 E1:2003 specify?

SIST ETS 300 107 E1:2003 applies only to international interworking between gateways. It does not add new Videotex features; instead, it defines how optional features from the CCITT T.500 series are to be used in this ETSI context.

The standard is organized into:

• Clause 1 - Scope
• Clause 2 - Normative references
• Clause 3 - Abbreviations
• Clause 4 - Relationship with CCITT Recommendations
• Clause 5 - Constraints and requirements on the use of document oriented features
• Clause 6 - Constraints and requirements on the use of communication oriented features
• History

Clause 4 links the standard to the CCITT recommendations that define the underlying application profiles and gateway characteristics. Clause 5 and Clause 6 contain the practical rules that gateway and host implementers need when they build or test Videotex interworking.

What are the key requirements of SIST ETS 300 107 E1:2003?

Document-oriented features

SIST ETS 300 107 E1:2003 requires the display structure and document profile to follow CCITT Recommendation T.504, with all mandatory attributes supported. This matters because the document profile is created at connection establishment time and sets the baseline for how a document behaves during the session.

• Mandatory document profile attributes are initialised from T.504, and the ODA version is fixed to the value given in the standard.
• The Local Host (LH) sets Unit scaling according to the national Videotex system it represents.
• Mandatory document management attributes shall not be modified during the association.
• Non-mandatory document management attributes may be modified during the association.

In practice, this means a gateway cannot change the core document identity while a session is active, but it can update allowed management data.

Operational structures and administrative handling

SIST ETS 300 107 E1:2003 applies similar rules to the data entry structure, application control memory structure, administrative structure, and special terminal facilities structure. Mandatory attributes shall be supported, and some identifiers may be omitted only under the conditions allowed by the referenced CCITT recommendations.

• Character lists for checking user input have no extra constraints.
• System fields are optional and may be used only when the administrations involved agree.
• The list of valid commands in a Rules-SE reflects the commands allowed for the association.
• Use of application control memory should be agreed at D-INITIATE by means of the bilateral management parameter.

For buyers and integrators, this means support for advanced session control is not automatic - it has to be planned between both ends of the connection.

Cost limits and bilateral management

SIST ETS 300 107 E1:2003 defines two ways to handle the cost limit facility: either the EH checks costs or the LH checks them when it receives data. At connection establishment, both sides announce whether they support the facility, and the responsibility follows the capability combination.

The bilateral management parameter carries this agreement data. It also carries capacity information such as display and data-entry capacity, field size, subprogram count, field count, rule count, and prompt count.

Communication-oriented features

SIST ETS 300 107 E1:2003 uses the communication application profile from CCITT Recommendation T.523. The selected data entry mode may be half duplex, duplex, or both. D-INITIATE information has no extra constraints beyond the referenced profile.

For DTAM use, one VIA operation applies to one Structure Element (SE), and a sequence of same-type VIA operations may map to a single DTAM operation. Interchange format class B applies only to display structure objects, and operational descriptors are ignored when checking conformance.

What terms does SIST ETS 300 107 E1:2003 define?

• Videotex Interworking Architecture (VIA) - the set of five data structures used to organize display, entry, administrative, and special terminal functions.
• Document Transfer Application Management (DTAM) - the transfer mechanism used to carry VIA operations between gateways and hosts.
• Local Host (LH) - the host on the local side of the connection, which may support cost checking and application control memory.
• External Host (EH) - the remote host on the other side of the Videotex interworking connection.
• Structure Element (SE) - a logical object in the VIA, such as a Rules-SE or Administrative-Information-SE.
• Terminal Facilities Identifier (TFI) - the identifier used for terminal-facility related information in the bilateral management parameter.

Who uses SIST ETS 300 107 E1:2003?

SIST ETS 300 107 E1:2003 is used by Videotex gateway designers, terminal equipment engineers, host system developers, and telecom operators that need cross-border service interworking. Quality managers and testers use it to check that a gateway handles document profiles, command sets, cost-limit behavior, and DTAM mapping in the way the profile expects.

It is also relevant to administrations that negotiate bilateral support for system fields, application control memory, and charging behavior. In practice, the standard helps teams agree what a gateway must support before two national Videotex services are connected.

Which standards are used with SIST ETS 300 107 E1:2003?

• ETS 300 072 - provides the Videotex presentation layer protocol and data syntax.
• CEPT T/SF-59 - defines the international Videotex service framework and the command set referenced by the Rules-SE.
• ETS 300 105 - gives the broader international Videotex interworking framework and the full reference list.
• CCITT Recommendation T.504 - defines the document application profile and the display structure attributes.
• CCITT Recommendation T.523 - defines the communication application profile used for data entry modes and DTAM-related constraints.
• CCITT Recommendation T.541 - defines the operational application profile used for operational structures.
• CCITT Recommendation T.564 - defines gateway characteristics and the storage and command-related details used here.
• CCITT Recommendation T.101 - provides the interworking architecture, protocols, and data syntaxes that this ETS aligns with.
• CCITT Recommendation T.415 - defines Office Document Architecture (ODA) and the interchange format class B used for display structure exchange.

What does the SIST ETS 300 107 E1:2003 document contain?

The document contains the rules for how optional Videotex features are to be used when gateways interwork internationally. Clause 5 covers the five VIA data structures, document profile initialization, defaulting, and the handling of cost limits and bilateral management data.

Clause 6 covers the communication side: data entry modes, D-INITIATE parameters, storage capacity, and how VIA operations map to DTAM operations. It also explains how interchange format class B is checked when a document is transferred or modified rather than sent as a new complete document.

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 - [e-mail]
X.400: Internet:
Tel.: [phone] - Fax: [phone]
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
...