SIST ETS 300 111 E1:2003

• Abstract:

  DE/NA-012238

• 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 300 111 ed.1 (1992-08) - Integrated Services Digital Network (ISDN); Telephony 3,1 kHz teleservice; Service description

SIST ETS 300 111 E1:2003 is a Slovenian standard identical to ETS 300 111 Edition 1. It describes the stage 1 service description for the Integrated Services Digital Network (ISDN) telephony 3,1 kHz teleservice, from the user's point of view, for public telecommunications operators and implementers who need to define or support the service.

What does SIST ETS 300 111 E1:2003 specify?

SIST ETS 300 111 E1:2003 specifies the overall service description for the ISDN telephony 3,1 kHz teleservice and its interworking with public and private ISDNs. It focuses on what the user experiences, how calls are set up and cleared, and how the service is described by attributes.

The standard is organized into clauses on scope, normative references, definitions, symbols and abbreviations, description, procedures, intercommunication considerations, interaction with supplementary services, static description using attributes, and dynamic description. Annex A gives an informative bibliography.

In scope, the standard excludes charging principles, values of the general attributes, and the details of the human interface itself. It also says no test method is provided, because conformance is achieved by conforming to the relevant stage 3 standards.

What are the key requirements of SIST ETS 300 111 E1:2003?

The standard defines a 3,1 kHz speech teleservice carried over ISDN as a real-time two-way conversation service. In practice, this means the service is for voice calls, not for transparent bit integrity or arbitrary data transfer.

• Clause 5 says user information goes over the B channel and signalling over the D channel. The network may use speech-oriented processing such as echo cancellation or low-rate encoding, so bit integrity is not assured. For implementers, this means the service is designed around speech quality rather than end-to-end bit transparency.
• Clause 6.1 requires provision by prior arrangement with the network operator. Subscription options can limit the maximum number of information channels and the maximum number of total calls per interface or per ISDN number. In practice, operators can control service availability and call loading.
• Clause 6.2 requires out-of-band indications for call progress, including proceed, call arrival, awaiting answer, and answer. On a multi-service terminal, service selection is needed. For users, this means the terminal and network must clearly show the state of the call.
• Clause 6.2 also states that when the called user answers, the progress indications are removed and bidirectional communication paths are provided. This marks the point at which the call becomes an active speech conversation.
• Clause 6.3 covers failure cases such as improper service requests, invalid or incorrect ISDN numbers, overlap-sending timeouts, busy users, no response, and network congestion. The network must give an appropriate indication and cease call establishment. In practice, the service defines how failures are reported to the caller.
• Clause 6.3.4 allows the network, as an option, to retain all information supplied by the calling user for the duration of a retention timer after busy or congestion. The retention timer value is greater than 15 seconds. This supports retry handling and call recovery behavior.
• Clauses 7 and 8 cover interworking and supplementary services. Interworking with the PSTN is required, and if a supplementary service interrupts in-band communication, the network must provide an appropriate B channel indication such as all ones or idle signal. This matters in mixed-network calls and when other services intervene.
• Clause 9 defines the service through attributes: circuit mode, 64 kbit/s, speech, 8 kHz integrity, demand establishment, bidirectional symmetric communication, and point-to-point configuration. For users of the standard, these attributes are the profile that equipment and network behavior must fit.

What terms does SIST ETS 300 111 E1:2003 define?

SIST ETS 300 111 E1:2003 uses the ISDN vocabulary and a few service-specific terms to keep service descriptions consistent.

• ISDN - Integrated Services Digital Network, the network environment in which the teleservice is defined.
• PSTN - Public Switched Telephone Network, the non-ISDN network named for interworking.
• Teleservice - a telecommunications service description that focuses on the user-facing service behavior.
• ISDN number - a number that follows the ISDN numbering plan and structure in E.164.
• Network determined user busy - a busy state identified by the network.
• User determined user busy - a busy state identified by the user side.
• Retention timer - the network timer that controls how long calling information is kept after busy or congestion.
• Voice quality - the speech performance expected for the service, described through acoustic and transmission characteristics.

Who uses SIST ETS 300 111 E1:2003?

SIST ETS 300 111 E1:2003 is used by public telecommunications operators, ISDN service designers, and network implementers who need a common description of the telephony 3,1 kHz teleservice. It is also relevant to private ISDN providers and equipment developers who must support interworking with the public ISDN.

Quality and product teams use it to check that call setup, busy handling, progress indications, and attribute values match the intended service model. It is most relevant in telecommunication engineering, network operations, and service specification work.

What changed in SIST ETS 300 111 E1:2003 from the previous edition?

SIST ETS 300 111 E1:2003 is identical to ETS 300 111 Edition 1.

Which standards are used with SIST ETS 300 111 E1:2003?

Standard	What it contributes
CCITT Recommendation I.130	The three-level model for describing ISDN services.
CCITT Recommendation G.711	PCM voice coding, including A-law speech coding and related access/profile information.
CCITT Recommendation I.112	Core ISDN vocabulary, including ISDN, service, and teleservice terms.
CCITT Recommendation I.210	Principles for describing telecommunications services supported by ISDN.
CCITT Recommendation I.220	The common dynamic description of basic telecommunication services.
CCITT Recommendation E.164	The ISDN numbering plan used for ISDN numbers.
CCITT Recommendation I.140	The attribute technique used for static service description.
CCITT Recommendation I.221	Specific service characteristics, including busy-related definitions.
CCITT Recommendation Q.71	Stage 2 background for ISDN 64 kbit/s circuit mode switched bearer services.
ETS 300 102	User-network interface layer 3 and basic call control.
ETS 300 125	User-network interface data link layer specification and application of Q.920/I.440 and Q.921/I.441.

What does the SIST ETS 300 111 E1:2003 document contain?

The document contains procedural text for provisioning, call establishment, indications, call termination, exceptional cases, interworking, and interaction with supplementary services. It also contains tables for subscription options and for low-layer and access attributes.

Tables 1 to 3 are central for practical use because they summarize interface subscription limits and the service's attribute values. Annex A is an informative bibliography that points to related ISDN and telephony standards.

SLOVENSKI STANDARD
01-december-2003
Digitalno omrežje z integriranimi storitvami (ISDN) – Daljinska storitev telefonije
3,1 kHz – Opis storitve
Integrated Services Digital Network (ISDN); Telephony 3,1 kHz teleservice; Service
description
Ta slovenski standard je istoveten z: ETS 300 111 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 300 111
TELECOMMUNICATION August 1992
STANDARD
Source: ETSI TC-NA Reference: DE/NA-012238
ICS: 33.080
ISDN, teleservice
Key words:
Integrated Services Digital Network (ISDN);
Telephony 3,1 kHz 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 1992. All rights reserved.
New presentation - see History box

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ETS 300 111: August 1992
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 300 111: August 1992
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions.8
4 Symbols and abbreviations .8
5 Description .8
6 Procedures.9
6.1 Provision and withdrawal .9
6.2 Normal procedures .9
6.2.1 Originating the call (call establishment).9
6.2.2 Indications during call establishment.9
6.2.3 Terminating the call.10
6.3 Exceptional procedures .10
6.3.1 Situations at the calling user side.10
6.3.2 Situations at the called user side.10
6.3.3 Situations due to network conditions.10
6.3.4 Retention of call information.10
7 Intercommunication considerations.10
7.1 Interworking with non-ISDNs .10
7.2 Interworking with private ISDNs.10
8 Interaction with other supplementary services .11
9 Static description of the service using attributes .11
9.1 Low layer attributes.11
9.1.1 Information transfer attributes .11
9.1.2 Access attributes.11
9.2 High layer attributes .12
9.3 General attributes .12
10 Dynamic description.12
Annex A (informative): Bibliography.13
History.14

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ETS 300 111: August 1992
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ETS 300 111: August 1992
Foreword
This European Telecommunication Standard (ETS) has been produced by the Network Aspects (NA)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
In accordance with CCITT Recommendation I.130 [1], the following three level structure is used to
describe the supplementary telecommunications services as provided by European public
telecommunications operators under the pan-European Integrated Services Digital Network (ISDN):
- Stage 1: is an overall service description, from the user's standpoint;
- Stage 2: identifies the functional capabilities and information flows needed to support the service
described in stage 1; and
- Stage 3: defines the signalling system protocols and switching functions needed to implement the
service described in stage 1.
This ETS details the stage 1 aspects (overall service description) for the telephony 3,1 kHz teleservice.
The stage 2 and stage 3 aspects are detailed in a general form in CCITT Recommendation Q.71 (an ETSI
version is under development) and ETS 300 102 (1990), respectively.

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ETS 300 111: August 1992
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ETS 300 111: August 1992
1 Scope
This standard defines the stage one of the telephony 3,1 kHz 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.
The telephony 3,1 kHz teleservice provides users with the ability for real time two-way speech
conversation via the public ISDN.
This standard is applicable to the stage two and stage three standards for the ISDN telephony 3,1 kHz
teleservice. The terms "stage two" and "stage three" are 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, or as a capability or possibility), this shall be reflected in the text of the
relevant stage two and stage three standards.
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 G.711 (1988): "Pulse code modulation (PCM) of voice
frequencies".
[3] CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".
[4] CCITT Recommendation I.210 (1988): "Principles of telecommunication
services supported by an ISDN and the means to describe them".
[5] CCITT Recommendation I.220 (1988): "Common dynamic description of basic
telecommunication services".
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ETS 300 111: August 1992
[6] CCITT Recommendation E.164 (1988): "Numbering plan for the ISDN era".
[7] CCITT Recommendation I.140 (1988): "Attribute technique for the
characterization of telecommunication services supported by an ISDN and
network capabilities of an ISDN".
[8] CCITT Recommendation I.221 (1988): "Common specific characteristics of
services".
3 Definitions
For the purposes of this standard, the following definitions apply:
Integrated Services Digital Network (ISDN): see CCITT Recommendation I.112 [3], § 2.3, definition
308.
Service; telecommunications service: see CCITT Recommendation I.112 [3], § 2.2, definition 201.
Supplementary service: see CCITT Recommendation
...