SIST ETS 300 262 E1:2003

• Abstract:

  ....

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• 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 300 262 ed.1 (1993-08) - Integrated Services Digital Network (ISDN); Syntax-based Videotex teleservice; Service description

SIST ETS 300 262 E1:2003 is the Slovenian standard identical to ETS 300 262 Edition 1. It is an ETSI European Telecommunication Standard for the stage one service description of the syntax-based Videotex teleservice in the pan-European Integrated Services Digital Network (ISDN). The document tells network operators and implementers what the service is, how calls are set up and cleared, and how the service interworks with public and private ISDNs.

What does SIST ETS 300 262 E1:2003 specify?

SIST ETS 300 262 E1:2003 specifies the stage one description of the syntax-based Videotex teleservice for public ISDNs. In practice, that means it describes the service from the user’s point of view and sets out the service behaviour that later, more detailed implementation standards must follow.

The standard covers:

• the service description and procedures
• intercommunication with non-ISDNs, private ISDNs and GSM access
• the static service attributes for circuit mode and packet mode
• the definitions and abbreviations used throughout the document

Its structure is straightforward: Scope, normative references, definitions, abbreviations, description, procedures, intercommunication considerations, interaction with supplementary services, static description using attributes, and dynamic description.

What are the key requirements of SIST ETS 300 262 E1:2003?

SIST ETS 300 262 E1:2003 is a service-level standard, so its main requirements are about how the teleservice behaves rather than how to build equipment. The most important points are the service model, call handling, interworking, and the attribute values that describe the service.

Service model and applicability

The standard defines stage one, which is an overall service description from the user’s point of view. It is intended for the syntax-based Videotex teleservice provided by European public telecommunications operators, and it sets the requirements that stage three standards must reflect in equipment behaviour.

Call setup and usage

The syntax-based Videotex teleservice allows on-demand communication only. Call establishment begins when a user requests the service and identifies the called user by ISDN number, with additional information allowed for supplementary services.

The network provides out-of-band call progress messages, and the called and calling users receive indications as the call proceeds. Once established, the service supports bidirectional communication in circuit mode or packet mode, using the channel arrangements stated in the service description.

Provision, withdrawal and subscription options

Provision is by prior arrangement with the administration or Recognised Private Operating Agency (RPOA). The service can also be offered with subscription options per ISDN number or group of numbers on the interface, including limits on the number of information channels and the total number of calls.

This matters for operators and buyers because these limits are set per interface and can be configured separately for incoming and outgoing calls as a network option.

Exceptional and failure procedures

The standard covers abnormal cases such as improper service requests, invalid or incorrect ISDN numbers, overlap sending timeouts, busy called users, non-responding terminals, congestion, and connection failures during setup. In these cases, the network sends the appropriate indication and stops call establishment.

It also allows a retention timer as a network option, so service data can be retained for a defined period when the call meets busy conditions or network problems. For implementation, this means the network must know when to keep or discard setup information after a failed attempt.

Interworking and access

Interworking is required with the Public Switched Packet Data Network (PSPDN). The standard also addresses private ISDNs, stating that the S reference point and T reference point information transfer attributes are identical where the service is provided from an S reference point.

For GSM access, the document points to ETSI-GSM Technical Specification GSM 03.43.

Static service attributes

The standard fixes the low-layer, access and high-layer attributes of the service for circuit mode and packet mode. These attribute tables are the service profile that implementers use when mapping the teleservice into network and terminal behaviour.

What terms does SIST ETS 300 262 E1:2003 define?

• Integrated Services Digital Network (ISDN) - The digital network type used as the service environment for this teleservice.
• Teleservice - A telecommunications service that provides end-to-end communication support for users.
• Supplementary service - An additional service that works alongside the main teleservice, such as identity presentation.
• Retention timer - A network timer that controls how long user-supplied setup information is kept after busy or failed call handling.
• Videotex terminal - A terminal that supports the Videotex teleservice.
• Videotex database - A database that users can communicate with through the Videotex service.
• Public Switched Packet Data Network (PSPDN) - The packet data network named for interworking with ISDN.

Who uses SIST ETS 300 262 E1:2003?

SIST ETS 300 262 E1:2003 is used by public telecommunications operators, network planners, ISDN service designers, and terminal equipment manufacturers. It is also relevant to administrations and Recognised Private Operating Agencies (RPOA) that provision the service.

In practice, these users rely on it to define service behaviour, check call handling, plan interworking with private ISDNs and PSPDNs, and align stage three implementation work with the service model.

What changed in SIST ETS 300 262 E1:2003 from the previous edition?

SIST ETS 300 262 E1:2003 is identified as ETS 300 262 Edition 1, and the document history records it as the first edition. The history also notes a later conversion into Adobe Acrobat Portable Document Format (PDF).

Which standards are used with SIST ETS 300 262 E1:2003?

• CCITT Recommendation I.130 - Defines how telecommunication services are characterised and provides the stage one / stage three framework used by this standard.
• CCITT Recommendation I.112 - Supplies ISDN vocabulary and the definitions for terms such as ISDN, service and teleservice.
• CCITT Recommendation I.140 - Provides the attribute technique used for the static description of the service.
• CCITT Recommendation I.210 - Gives the principles for ISDN services and defines supplementary service terminology.
• CCITT Recommendation F.300 - Defines Videotex service principles.
• ETS 300 079 / ETS 300 223 - Provide the end-to-end protocols for syntax-based Videotex in circuit mode and packet mode.
• ETS 300 080 / ETS 300 218 - Provide the ISDN lower-layer and packet-mode protocols used by the service.
• ETS 300 102 / ETS 300 125 / ETS 300 007 - Cover basic call control and data link / packet-mode support used for signalling and access.
• GSM 03.43 - Covers Videotex technical realization for GSM access.

What does the SIST ETS 300 262 E1:2003 document contain?

The document contains the service description, call procedures, interworking considerations, and the static attribute model for the syntax-based Videotex teleservice. Table 1 sets subscription options for the interface, while Tables 2 to 4 describe low-layer, access, and high-layer attributes.

It also describes normal call establishment, call termination, and exceptional procedures for invalid numbers, busy users, congestion, and failed connections. For implementers, those sections show what the network must indicate to users and when it may retain or discard call setup information.

The document closes with a short history note.

SLOVENSKI STANDARD
01-december-2003
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GDOMLQVNDVWRULWHY9LGHRWH[±2SLVVWRULWYH
Integrated Services Digital Network (ISDN); Syntax-based Videotex teleservice; Service
description
Ta slovenski standard je istoveten z: ETS 300 262 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 262
TELECOMMUNICATION August 1993
STANDARD
Source: ETSI TC-NA Reference: DE/NA-012239
ICS: 33.080
ISDN, Videotex
Key words:
Integrated Services Digital Network (ISDN);
Syntax-based Videotex teleservice
Service description
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 1993. All rights reserved.
New presentation - see History box

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ETS 300 262: August 1993
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 300 262: August 1993
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions.8
4 Abbreviations.8
5 Description .9
6 Procedures.9
6.1 Provision and withdrawal .9
6.2 Normal procedures .10
6.2.1 Originating the call (call establishment).10
6.2.2 Indications during call establishment.10
6.2.3 Terminating the call.10
6.2.4 Videotex procedures .10
6.3 Exceptional procedures .10
6.3.1 Situations detected at the calling side .10
6.3.2 Situations detected at the called side.11
6.3.3 Situations due to network conditions.11
6.3.4 Videotex procedures .11
7 Intercommunication considerations.11
7.1 Interworking with non-ISDNs .11
7.2 Interworking with private ISDNs.11
7.3 GSM interworking .11
8 Interaction with supplementary services .11
9 Static description of the service using attributes .12
9.1 Low layer attributes.12
9.1.1 Information transfer attributes .12
9.1.2 Access attributes.13
9.2 High layer attributes .13
9.3 General attributes .13
10 Dynamic description.13
History.14

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ETS 300 262: August 1993
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ETS 300 262: August 1993
Foreword
This European Telecommunication Standard (ETS) has been produced by the Terminal Equipment (TE)
Technical Committee of the European Telecommunications Standards Institute (ETSI). This ETS has
been approved by the Network Aspects (NA) Technical Committee of ETSI.
This ETS defines the stage one of the syntax-based Videotex teleservice for the pan-European Integrated
Services Digital Network (ISDN) as provided by European public telecommunications operators. A
Videotex teleservice is an interactive teleservice which provides, through appropriate access by
standardised procedures, users of Videotex terminals the ability to communicate with databases and other
computer based applications via telecommunications networks.

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ETS 300 262: August 1993
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ETS 300 262: August 1993
1 Scope
This standard defines the stage one of the syntax-based Videotex teleservice for the pan-European
Integrated Services Digital Network (ISDN) as provided by European public telecommunications
operators. Stage one is an overall service description from the user's point of view (see CCITT
Recommendation I.130 [1]), but does not deal with the details of the human interface itself.
This standard defines the interworking requirements of private ISDNs with the public ISDN.
In addition this standard specifies the base functionality where the service is provided to the user via a
private ISDN.
This standard does not specify the additional requirements where the service is provided to the user via a
telecommunications network that is not an ISDN but does include interworking requirements of other
networks with the public ISDN.
Charging principles are outside the scope of this standard.
The values of the general attributes are outside the scope of this standard.
A Videotex teleservice is an interactive teleservice which provides, through appropriate access by
standardised procedures, users of Videotex terminals the ability to communicate with databases and other
computer based applications via telecommunications networks.
This standard is applicable to the stage three standards for the syntax-based Videotex teleservice. The
term "stage three" is also defined in CCITT Recommendation I.130 [1]. Where the text indicates the status
of a requirement, i.e. as strict command or prohibition, as authorisation leaving freedom, as a capability or
possibility, this shall be reflected in the text of the relevant stage three standard.
Furthermore, conformance to this standard is met by conforming to the stage three standards with the
field of application appropriate to the equipment being implemented. Therefore no method of testing is
provided for this standard.
2 Normative references
This standard 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 standard only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies.
[1] CCITT Recommendation I.130 (1988): "Method for the characterisation of
telecommunication services supported by an ISDN and network capabilities of
an ISDN".
[2] CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".
[3] CCITT Recommendation I.140 (1988): "Attribute technique for the
characterization of telecommunication services supported by an ISDN and
network capabilities of an ISDN".
[4] CCITT Recommendation I.210 (1988): "Principles of telecommunication
services supported by an ISDN and the means to describe them".
[5] CCITT Recommendation F.300 (1988): "Videotex service".
[6] ETS 300 007: "Integrated Services Digital Network (ISDN); Support of
packet-mode terminal equipment by an ISDN".
[7] ETS 300 079: "Integrated Services Digital Network (ISDN); Syntax-based
videotex End-to-end protocols, circuit mode DTE-DTE".

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ETS 300 262: August 1993
[8] ETS 300 080: "Integrated Services Digital Network (ISDN); ISDN lower layer
protocols for telematic terminals".
[9] ETS 300 102: "Integrated Services Digital Network (ISDN); User-network
interface layer 3 Specifications for basic call control".
[10] ETS 300 125: "Integrated Services Digital Network (ISDN); User-network
interface data link layer specification Application of CCITT Recommendations
Q.920/I.440 and Q.921/I.441".
[11] ETS 300 218: "Integrated Services Digital Network (ISDN); Syntax-based
videotex lower layer protocols for ISDN packet mode (X.31 Case A and
Case B)".
[12] ETS 300 223: "Integrated Services Digital Network (ISDN); Syntax-based
Videotex Common end-to-end protocols".
[13] ETSI-GSM Technical Specification GSM 03.43: "European digital cellular
telecommunication system (phase 1); Technical Realization of Videotex".
3 Definitions
For the purposes of this standard, the following definitions apply.
Integrated Services Digital Network (ISDN): see CCITT Recommendation I.112 [2], § 2.3, definition
308.
Service; telecommunications service: see CCITT Recommendation I.112 [2], § 2.2, definition 201.
Teleservice: see CCITT Recommendation I.112 [2], § 2.2, definition 203.
Supplementary service: see CCI
...