SIST ETS 300 110 E1:2003

• Abstract:

  DE/NA-012237

• 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 300 110 ed.1 (1992-08) - Integrated Services Digital Network (ISDN); Circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information transfer; Service description

SIST ETS 300 110 E1:2003 is the Slovenian adoption of ETS 300 110 Edition 1, published by SIST. It is a service description for an Integrated Services Digital Network (ISDN) bearer service category used to transfer speech and 3,1 kHz audio information over a circuit-mode 64 kbit/s, 8 kHz structured connection. The document is aimed at public telecom operators and at anyone implementing or specifying this ISDN bearer service.

What does SIST ETS 300 110 E1:2003 specify?

SIST ETS 300 110 E1:2003 specifies stage 1 of the ISDN circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information transfer. In practice, that means it describes the service from the user point of view and sets the service behavior that later ISDN standards must support.

The scope covers interworking with private ISDNs and the base functionality when the service is provided through a private ISDN. It also places charging principles and the values of general attributes outside its scope.

The document is organized into:

• Clause 1 - scope
• Clause 2 - normative references
• Clause 3 - definitions
• Clause 4 - symbols and abbreviations
• Clause 5 - description
• Clause 6 - procedures
• Clause 7 - intercommunication considerations
• Clause 8 - interaction with other supplementary services
• Clause 9 - static description using attributes
• Clause 10 - dynamic description
• Annex A - informative bibliography

What are the key requirements of SIST ETS 300 110 E1:2003?

SIST ETS 300 110 E1:2003 defines how the bearer service behaves for speech and 3,1 kHz audio, how calls are set up and cleared, and how the service is represented by attributes. These points matter because they tell operators what the network must present to users and what later equipment standards must implement.

Service behavior and media transfer

Clause 5 states that user information is carried over a B channel, while signalling uses the D channel. The service supports speech and 3,1 kHz audio such as voice band data and facsimile groups 1, 2 and 3. The practical effect is that the service is intended for classic voice and modem-type traffic, not arbitrary broadband data.

Clause 5 also notes that two users can communicate point-to-point, and that multipoint use is possible when supplementary services invoke it. The service variants are on demand, reserved and permanent, so implementers need to know which establishment mode their network supports.

Call handling and network indications

Clause 6 describes provision by prior arrangement with the network operator and gives subscription options for the interface. Table 1 limits the maximum number of information channels and total calls present. This matters for capacity planning and for defining what each subscriber interface may support.

For demand service, the network must provide out-of-band indications and in-band tones or announcements during call progress. Clause 6 also covers normal establishment, including acknowledgment to the caller, indication to the called user, and notification when the connection is established or terminated.

Exceptional conditions

Clause 6 lists failures such as an improper service request, invalid or incorrect ISDN number, lack of address information, user busy, terminal non-response, and network congestion. In each case the network must give an appropriate indication and stop call establishment as described. That gives implementers the expected user-visible behavior for failure handling.

Clause 6.3.4 allows the network, as an option, to retain calling information for a period controlled by the retention timer. The timer value must be greater than 15 seconds.

Interworking and supplementary services

Clause 7 requires interworking with the PSTN. Calls from the PSTN are presented to ISDN users under this bearer service category, and a call may terminate in the PSTN with an indication that interworking has occurred. Clause 8 says supplementary services can interrupt in-band communication and the network must then provide an appropriate B channel indication.

Attribute description

Clause 9 describes the service with low-layer attributes. Table 2 gives the information transfer mode, rate, capability, structure, symmetry and communication configuration. Table 3 gives access attributes for user information and signalling. Clause 10 says the dynamic description on a demand basis follows CCITT Recommendation I.220.

What terms does SIST ETS 300 110 E1:2003 define?

SIST ETS 300 110 E1:2003 uses several service terms taken from ISDN recommendations:

• Integrated Services Digital Network (ISDN) - the digital network environment for the service.
• Bearer service - the transport service defined from the network side.
• Supplementary service - an additional service that can affect call handling or presentation.
• ISDN number - a number following E.164 numbering.
• Network determined user busy - a busy condition identified by the network.
• User determined user busy - a busy condition set by the user or terminal.
• Retention timer - the network timer that controls how long call information is kept after busy or termination.

Who uses SIST ETS 300 110 E1:2003?

SIST ETS 300 110 E1:2003 is used by ISDN operators, network planners, and equipment vendors who need a common service definition. It is also relevant for private ISDN operators, PTNX integrators, and testers of call-control behavior, because it defines how the service should appear to users and how networks should react during call setup, busy conditions, and interworking with PSTN.

What changed in SIST ETS 300 110 E1:2003 from the previous edition?

SIST ETS 300 110 E1:2003 corresponds to ETS 300 110 Edition 1. The history shown with the document identifies it as the first edition and notes its PDF conversion history.

Which standards are used with SIST ETS 300 110 E1:2003?

SIST ETS 300 110 E1:2003 relies on several CCITT Recommendations for definitions and service description methods:

• I.130 - the three-stage method for describing ISDN services.
• I.411 - ISDN user-network reference configurations.
• G.711 - PCM voice coding, including A-law and μ-law handling.
• I.112 - vocabulary for ISDN terms.
• I.210 - principles for telecommunication services and how to describe them.
• I.220 - common dynamic description of basic telecommunication services.
• E.164 - ISDN numbering.
• I.221 - common service characteristics, including busy conditions.
• I.140 - attribute technique for service characterization.

The document also points to ETS 300 102 and ETS 300 125 for signalling-related behavior.

What does the SIST ETS 300 110 E1:2003 document contain?

SIST ETS 300 110 E1:2003 contains service description text, call procedures, exceptional call cases, interworking guidance, and attribute-based descriptions of the bearer service. It includes three tables: subscription options, information transfer attributes, and access attributes.

The document also gives the relationship between speech handling and 3,1 kHz audio transfer, including the use of G.711 A-law and the possibility of A-law to μ-law conversion at an international boundary. Annex A is an informative bibliography that names related ETSI and CCITT documents.

SLOVENSKI STANDARD
01-december-2003
Digitalno omrežje z integriranimi storitvami (ISDN) – Kategorija nosilne vodovne
storitve za prenosno hitrost 64 kbit/s in 8 kHz za strukturirane signale, ki se
uporabljajo za prenos zvokovnih podatkov s 3,1 kHz – Opis storitve
Integrated Services Digital Network (ISDN); Circuit-mode 64 kbit/s 8 kHz structured
bearer service category usable for 3,1 kHz audio information transfer; Service description
Ta slovenski standard je istoveten z: ETS 300 110 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 300 110
TELECOMMUNICATION August 1992
STANDARD
Source: ETSI TC-NA Reference: DE/NA-012237
ICS: 33.080
ISDN, bearer service
Key words:
Integrated Services Digital Network (ISDN);
Circuit-mode 64 kbit/s 8 kHz structured bearer
service category usable for 3,1 kHz audio
information transfer
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 300 110: 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 300 110: August 1992
Contents
Foreword .5
1 Scope .7
2 Normative references.8
3 Definitions.8
4 Symbols and abbreviations .9
5 Description .9
6 Procedures.10
6.1 Provision and withdrawal .10
6.2 Normal procedures .11
6.2.1 Originating the call (call establishment).11
6.2.2 Indications during call establishment.11
6.2.3 Terminating the call.11
6.3 Exceptional procedures .11
6.3.1 Situations at the calling user side.11
6.3.2 Situations at the called user side.12
6.3.3 Situations due to network conditions.12
6.3.4 Retention of call information.12
7 Intercommunication considerations.12
7.1 Interworking with non-ISDNs .12
7.2 Interworking with private ISDNs.12
8 Interaction with other supplementary services .13
9 Static description of the service using attributes .13
9.1 Low layer attributes.13
9.1.1 Information transfer attributes .13
9.1.2 Access attributes.14
9.2 High layer attributes .14
9.3 General attributes .14
10 Dynamic description.14
Annex A (informative): Bibliography.15
History.16

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ETS 300 110: August 1992
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ETS 300 110: 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 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 circuit-mode 64 kbit/s 8 kHz
structured bearer service category usable for 3,1 kHz audio information transfer. The stage 2 and 3
aspects are detailed in a general form in documents CCITT Recommendation Q.71 (an ETSI version is
currently under development) and ETS 300 102 (1990), respectively.
The circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information
transfer corresponds to the service which is currently offered in the Public Switched Telephone Network
(PSTN). This bearer service category provides for the transfer of speech and of 3,1 kHz bandwidth audio
information such as voice band data via modems, facsimile groups 1, 2 and 3 information.

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ETS 300 110: August 1992
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ETS 300 110: August 1992
1 Scope
This standard defines the stage one of the circuit-mode 64 kbit/s 8 kHz structured bearer service category
usable for 3,1 kHz audio information transfer 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 circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information
transfer corresponds to the service which is currently offered in the Public Switched Telephone Network
(PSTN). This bearer service category provides for the transfer of speech and of 3,1 kHz bandwidth audio
information such as voice band data via modems, facsimile groups 1, 2 and 3 information.
The digital signal at the coincident S and T reference point (see CCITT Recommendation I.411 [2])
conforms to CCITT Recommendation G. 711 [3] (A-law).
The circuit-mode 64 kbit/s 8 kHz structured bearer service category usable for 3,1 kHz audio information
transfer is intended to support speech and 3,1 kHz bandwidth audio information transfer between
reference points. Each of these reference points can be either an S or coincident S and T reference
points.
NOTE: Network operators can also provide information transfer with the same attributes
where the reference point is T.
This standard is applicable to the stage two and stage three standards for the ISDN circuit-mode 64 kbit/s
8 kHz structured bearer service category usable for 3,1 kHz audio information transfer. 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.
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ETS 300 110: August 1992
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.411 (1988): "ISDN user-network interfaces -
Reference configurations".
[3] CCITT Recommendation G.711 (1988): "Pulse code modulation (PCM) of voice
frequencies".
[4] CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".
[5] CCITT Recommendation I.210 (1988): "Principles of telecommunication
services supported by an ISDN and the means to describe them".
[6] CCITT Recommendation I.220 (1988): "Common dynamic description of basic
telecommunication services".
[7] CCITT Recommendation E.164 (1988): "Numbering plan for the ISDN era".
[8] CCITT Recommendation I.221 (1988): "Common specific characteristics of
services".
[9] CCITT Recommendation I.140 (1988): "Attribute technique for the
characterization of telecommunication services supported by an ISDN and
network capabilities of an ISDN".
3 Definitions
For the purposes of this standard, the following definitions apply:
Integrated Services Digital Network (ISDN): see CCITT Recommendation I.112 [4], § 2.3, definition
308.
Service; telecommunications service: see CCITT Recommendation I.112 [4], § 2.2, definition 201.
Bearer service: see CCITT Recommendation I.112 [4], § 2.2, definition 202.
Supplementary service: see CCITT Recommendation I.210 [5], § 2.4.
ISDN number: a number conforming to the numbering plan and structure specified in CCITT
Recommendation E.164 [7].
Network determined user busy: see CCITT Recommendation I.221 [8], § 3.1.4.
User determined user busy: see
...