SIST ETS 300 265:1997

SLOVENSKI STANDARD
SIST ETS 300 265:1997
01-maj-1997
Digitalno omrežje z integriranimi storitvami (ISDN) - Daljinska storitev: 7 kHz
telefonija - Funkcijske zmožnosti in informacijski tokovi
Integrated Services Digital Network (ISDN); Telephony 7 kHz teleservice; Functional
capabilities and information flows
Ta slovenski standard je istoveten z: ETS 300 265 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 265:1997 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 265:1997

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SIST ETS 300 265:1997
EUROPEAN ETS 300 265
TELECOMMUNICATION February 1994
STANDARD
Source: ETSI TC-SPS Reference: T/S 22-14
ICS: 33.080
ISDN, teleservice.
Key words:
Integrated Services Digital Network (ISDN);
Telephony 7 kHz teleservice
Functional capabilities and information flows
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 1994. All rights reserved.
New presentation - see History box

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ETS 300 265: February 1994
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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Contents
Foreword.5
1 Scope .7
2 Normative references .7
3 Definitions.8
4 Symbols and abbreviations.8
5 Description .8
6 Derivation of the functional model .8
6.1 Functional model description .8
6.2 Description of functional entities .9
7 Information flows.9
7.1 Information flow diagrams.9
7.2 Definition of information flows.10
8 SDL diagrams for functional entities.11
8.1 SDL diagrams for FE1.12
8.2 SDL diagrams for FE2.13
8.3 SDL diagrams for FE3.16
8.4 SDL diagrams for FE4.18
8.5 SDL diagrams for FE5.21
9 Functional Entity Actions (FEAs).22
9.1 FEAs of FE1.22
9.2 FEAs of FE2.22
9.3 FEAs of FE3.22
9.4 FEAs of FE4.22
9.5 FEAs of FE5.22
10 Network physical location scenarios.22
History.23

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Foreword
This European Telecommunication Standard (ETS) has been prepared by the Signalling Protocols and
Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).
In accordance with CCITT Recommendation I.130, the following three level structure is used to describe
the telecommunication 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 2 aspects (functional capabilities and information flows) needed to support the
telephony 7 kHz teleservice. The stage 1 and stage 3 aspects are detailed in ETS 300 263 (1994) and
ETS 300 267-1 (1994), respectively.

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1 Scope
This ETS defines the stage two of the telephony 7 kHz teleservice for the pan-European Integrated
Services Digital Network (ISDN) as provided by European public telecommunications operators. The stage
two description identifies the functional capabilities and the information flows needed to support the service
description. The stage two description also identifies user operations not directly associated with a call
(see CCITT Recommendation I.130 [2]).
This ETS is specified according to the methodology specified in CCITT Recommendation Q.65 [3].
In addition this ETS does not specify the requirements where the service is provided to the user via a
private ISDN. This ETS does not specify the requirements for the allocation of defined functional entities
within a private ISDN; it does, however, specify which functional entities may be allocated to a private
ISDN.
This ETS does not specify the additional requirements where the service is provided to a user via a
telecommunications network that is not an ISDN.
The telephony 7 kHz teleservice is a realtime teleservice in which speech (7 kHz or 3,1 kHz bandwidth) can
be interchanged using one circuit-mode 64 kbit/s connection.
This ETS is applicable to the stage three standards for the ISDN telephony 7 kHz teleservice. The term
"stage three" is also defined in CCITT Recommendation I.130 [2]. Where the text indicates the status of a
requirement, i.e. as a strict command or prohibition, as authorisation leaving freedom, as a capability or
possibility, this shall be reflected in the relevant stage three standards.
Furthermore, conformance to this ETS 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 ETS.
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] CCITT Recommendation I.112 (1988): "Vocabulary of terms for ISDNs".
[2] CCITT Recommendation I.130 (1988): "Method for the characterisation of
telecommunication services supported by an ISDN and network capabilities of an
ISDN".
[3] CCITT Recommendation Q.65 (1988): "Stage 2 of the method for the
characterisation of services supported by an ISDN".
[4] CCITT Recommendation Q.71 (1988): "ISDN 64 kbit/s circuit mode switched
bearer services".
[5] CCITT Recommendation Z.100 (1988): "Functional Specification and Description
Language (SDL)".
[6] ETS 300 144: "Integrated Services Digital Network (ISDN); Audiovisual services;
Frame structure for a 64 kbit/s to 1 920 kbit/s channel and associated syntax for
inband signalling" (equivalent to ITU-T Recommendation H.221).

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3 Definitions
For the purposes of this ETS, the following definitions apply:
3,1 kHz terminal: a terminal that supports only the telephony 3,1 kHz teleservice.
7 kHz terminal: a terminal that supports the telephony 7 kHz teleservice.
Connection: see CCITT Recommendation I.112 [1], § 2.3, definition 309.
Integrated Services Digital Network (ISDN): see CCITT Recommendation I.112 [1], § 2.3, definition
308.
Service; telecommunications service: see CCITT Recommendation I.112 [1], § 2.2, definition 201.
Teleservice: see CCITT Recommendation I.112 [1], § 2.2, definition 203.
4 Symbols and abbreviations
For the purposes of this ETS, the following abbreviations apply:
CC Call Control
CCA Call Control Agent
FE Functional Entity
FEA Functional Entity Action
SDL Specification and Description Language
5 Description
The telephony 7 kHz teleservice enables the user to communicate with high quality speech or by
interchanging sounds with higher quality than that provided by the telephony 3,1 kHz teleservice. The
telephony 7 kHz teleservice provides speech communication with a frequency range from 50 to 7 000 Hz
using one circuit-mode 64 kbit/s connection. The digital signal over the connection follows the internationally
agreed encoding laws for high quality speech. Tones and announcements are provided by the network.
The telephony 3,1 kHz teleservice may be charged at a cheaper rate and users shall have the option of
accessing either service. The calling us
...