SIST ETS 300 108 E1:2003

SLOVENSKI STANDARD
01-december-2003
Digitalno omrežje z integriranimi storitvami (ISDN) – Kategorija nosilne vodovne
storitve za prenosno hitrost 64 kbit/s brez omejitve in 8 kHz za strukturirane
signale – Opis storitve
Integrated Services Digital Network (ISDN); Circuit-mode 64 kbit/s unrestricted 8 kHz
structured bearer service category; Service description
Ta slovenski standard je istoveten z: ETS 300 108 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 300 108
TELECOMMUNICATION August 1992
STANDARD
Source: ETSI TC-NA Reference: DE/NA-012235
ICS: 33.080
ISDN, bearer service
Key words:
Integrated Services Digital Network (ISDN);
Circuit-mode 64 kbit/s unrestricted 8 kHz
structured bearer service category
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 - 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 1992. All rights reserved.
New presentation - see History box

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ETS 300 108: 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 300 108: August 1992
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions.8
4 Symbols and abbreviations .9
5 Description .9
6 Procedures.10
6.1 Provision and withdrawal .10
6.2 Normal procedures .10
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.13
8 Interaction with 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 300 108: 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 circuit-mode 64 kbit/s
unrestricted 8 kHz structured bearer service category. 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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1 Scope
This standard defines the stage one of the circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer
service category 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 unrestricted 8 kHz structured bearer service category provides unrestricted
information transfer between reference points. Each of these reference points can be either an S or
coincident S and T reference points (see CCITT Recommendation I.411 [2]).
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
unrestricted 8 kHz structured bearer service category. 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 I.411 (1988): "ISDN user-network interfaces -
Reference configurations".
[3] CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".

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ETS 300 108: August 1992
[4] CCITT Recommendation I.210 (1988): "Principles of telecommunication
services supported by an ISDN and the means to describe them".
[5] CCITT Recommendation E.164 (1988): "Numbering plan for the ISDN era".
[6] CCITT Recommendation I.221 (1988): "Common specific characteristics of
services".
[7] CCITT Recommendation I.220 (1988): "Common dynamic description of basic
telecommunication services".
[8] CCITT Recommendation I.140 (1988): "Attribute technique for the
characterization of telecommunication services supported by an ISDN and
network capabilities of an ISDN".
[9] ETS 300 007 (1991): "Integrated Services Digital Network (ISDN); Support of
packet mode terminal equipment by an ISDN".
[10] ETS 300 103 (1990): "Integrated Services Digital Network (ISDN); Support of
CCITT Recommendation X.21, X.21 bis and X.20 bis based Data Terminal
Equipments (DTEs) by an ISDN Synchronous and asynchronous terminal
adaptation functions".
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.
Bearer service: see CCITT Recommendation I.112 [3], § 2.2, definition 202.
Supplementary service: see CCITT Recommendation I.210 [4], § 2.4.
ISDN number: a number conforming to the numbering plan and structure specified in CCITT
Recommendation E.164 [5].
Network determined user busy: see CCITT Recommendation I.221 [6], § 3.1.4.
User determined user busy: see CCITT Recommendation I.221 [6], § 3.1.4.
Retention timer: this timer specifies the amount of time that the network retains all of the information
supplied by the calling user when the call encounters busy or is terminated. Implementation of this timer is
a network option. The value of this timer shall be greater than 15 seconds.

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4 Symbols and abbreviations
ISDN Integrated Services Digital Network
IWF Interworking Function
PSTN Public Switched Telephone Network
PTNX Private Telecommunication Network Exchange
5 Description
This bearer service category shall provide unrestricted information transfer, therefore it can be used to
support various user a
...