Integrated Services Digital Network (ISDN); Telephony 3,1 kHz teleservice; Attachment requirements for handset terminals

To check TBR8 and TBR3 for misalignment, to make necessary modifications and to ensure that the references in TBR3 are correct. To ensure that TBR3 and TBR8 can be used in conjunction with each other to approve a 3,1 kHz telephony terminal. An assessment of the justification of some sub-clauses may be carried out.

Digitalno omrežje z integriranimi storitvami (ISDN) - Daljinska storitev telefonije 3,1 kHz - Priključitvene zahteve za ročne terminale

General Information

Status
Published
Publication Date
30-Sep-2004
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Oct-2004
Due Date
01-Oct-2004
Completion Date
01-Oct-2004
Mandate

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SIST TBR 008 E2:2004
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SLOVENSKI STANDARD
SIST TBR 008 E2:2004
01-oktober-2004

'LJLWDOQRRPUHåMH]LQWHJULUDQLPLVWRULWYDPL ,6'1 'DOMLQVNDVWRULWHYWHOHIRQLMH

N+]3ULNOMXþLWYHQH]DKWHYH]DURþQHWHUPLQDOH

Integrated Services Digital Network (ISDN); Telephony 3,1 kHz teleservice; Attachment

requirements for handset terminals
Ta slovenski standard je istoveten z: TBR 008 Edition 2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST TBR 008 E2:2004 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST TBR 008 E2:2004
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SIST TBR 008 E2:2004
TECHNICAL TBR 8
BASIS for October 1998
REGULATION Second Edition
Source: DTA Reference: RTBR/DTA-004044
ICS: 33.020
Key words: ISDN, telephony, 3,1 kHz, teleservice, terminal
Integrated Services Digital Network (ISDN);
Telephony 3,1 kHz teleservice;
Attachment requirements for handset terminals
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Internet: secretariat@etsi.fr - http://www.etsi.org
Tel.: +33 4 92 94 42 00 - Fax: +33 4 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 1998. All rights reserved.
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TBR 8: October 1998

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 Standards Making Support Dept." at the address shown on the title page.
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TBR 8: October 1998
Contents

Foreword .......................................................................................................................................................7

1 Scope ..................................................................................................................................................9

2 Normative references..........................................................................................................................9

3 Definitions and abbreviations ............................................................................................................11

3.1 Definitions ..........................................................................................................................11

3.2 Abbreviations .....................................................................................................................12

4 General..............................................................................................................................................12

5 Safety requirements ..........................................................................................................................12

6 ElectroMagnetic Compatibility (EMC) requirements..........................................................................12

7 Call control functions.........................................................................................................................13

7.1 Information element codings specific for the Telephony 3,1 kHz teleservice ....................13

7.1.1 Bearer Capability information element ..........................................................13

7.1.2 High Layer Compatibility (HLC) information element ....................................14

7.1.3 Low Layer Compatibility (LLC) information element......................................14

7.2 Outgoing calls, inclusion and coding of the compatibility elements ...................................15

7.3 Incoming calls - compatibility checking..............................................................................15

8 Transmission aspects .......................................................................................................................16

8.1 General ..............................................................................................................................16

8.1.1 Encoding .......................................................................................................16

8.1.2 Volume control ..............................................................................................16

8.2 Speech performance characteristics (handset telephony 3,1 kHz) ...................................17

8.2.1 Sensitivity - frequency response....................................................................17

8.2.1.1 Sending................................................................................17

8.2.1.2 Receiving.............................................................................17

8.2.2 Sending and Receiving Loudness Ratings (SLR and RLR)..........................18

8.2.2.1 Nominal values ....................................................................18

8.2.2.2 Volume control.....................................................................18

8.2.3 Sidetone ........................................................................................................18

8.2.3.1 Talker sidetone ....................................................................18

8.2.3.2 Listener sidetone .................................................................19

8.2.4 Terminal Coupling Loss (TCL) ......................................................................19

8.2.4.1 Weighted Terminal Coupling Loss (TCLw)..........................19

8.2.4.2 Stability loss.........................................................................19

8.2.5 Distortion .......................................................................................................19

8.2.5.1 Sending................................................................................19

8.2.5.1.1 Method 1 (Pseudo random noise
stimulus) ...............................................19
8.2.5.1.2 Method 2 (Sinusoidal test signal)..........20

8.2.5.2 Receiving.............................................................................20

8.2.5.2.1 Method 1 (Pseudo random noise
signal) ...................................................20
8.2.5.2.2 Method 2 (Sinusoidal test signal)..........21

8.2.5.3 Sidetone...............................................................................21

8.2.6 Variation of gain with input level....................................................................21

8.2.6.1 Sending................................................................................21

8.2.6.2 Receiving.............................................................................21

8.2.7 Out-of-band signals.......................................................................................22

8.2.7.1 Discrimination against out-of-band input signals (sending).22
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TBR 8: October 1998

8.2.7.2 Spurious out-of-band (receiving)......................................... 22

8.2.8 Noise............................................................................................................. 23

8.2.8.1 Sending............................................................................... 23

8.2.8.2 Receiving ............................................................................ 23

8.2.8.3 Level of sampling frequency (receiving) ............................. 23

8.2.9 Acoustic shock.............................................................................................. 23

8.2.10 Delay............................................................................................................. 23

9 Operation under restricted power conditions....................................................................................24

10 Testing and approval methodology................................................................................................... 24

Annex A (normative): Test specification for voice transmission aspects.............................................. 25

A.1 General conditions for testing........................................................................................................... 25

A.1.1 Environment for tests ........................................................................................................ 25

A.1.2 Test equipment interface...................................................................................................25

A.1.3 Test equipment requirements ........................................................................................... 25

A.1.3.1 Electro-acoustic equipment .......................................................................... 25

A.1.3.2 Test equipment for digital telephone sets..................................................... 25

A.1.3.2.1 Codec approach and specification...................................... 25

A.1.3.2.2 Direct digital processing approach...................................... 27

A.1.4 Alternative test methods.................................................................................................... 27

A.1.5 Accuracy of test equipment............................................................................................... 27

A.1.6 Bandwidth.......................................................................................................................... 27

A.1.7 Powering ........................................................................................................................... 27

A.2 Transmission requirements testing .................................................................................................. 28

A.2.1 Sensitivity/frequency response.......................................................................................... 28

A.2.1.1 Sending......................................................................................................... 28

A.2.1.2 Receiving ...................................................................................................... 28

A.2.2 Loudness ratings............................................................................................................... 28

A.2.2.1 Sending Loudness Rating (SLR) .................................................................. 28

A.2.2.2 Receiving Loudness Rating (RLR) ............................................................... 29

A.2.3 Sidetone ............................................................................................................................ 29

A.2.3.1 Talker sidetone ............................................................................................. 29

A.2.3.2 Listener sidetone .......................................................................................... 29

A.2.3.2.1 Sound field calibration......................................................... 29

A.2.3.2.2 Measurement and calculation of LSTR............................... 30
A.2.3.2.3 Measurement and calculation of the value of the D-factor . 30

A.2.4 Terminal Coupling Loss .................................................................................................... 31

A.2.4.1 Weighted Terminal Coupling Loss (TCLw)................................................... 31

A.2.4.2 Stability loss.................................................................................................. 31

A.2.5 Distortion ........................................................................................................................... 32

A.2.5.1 Sending......................................................................................................... 32

A.2.5.1.1 Method 1 ............................................................................. 32

A.2.5.1.2 Method 2 ............................................................................. 32

A.2.5.2 Receiving ...................................................................................................... 32

A.2.5.2.1 Method 1 ............................................................................. 32

A.2.5.2.2 Method 2 ............................................................................. 32

A.2.5.3 Sidetone........................................................................................................ 33

A.2.6 Variation of gain with input level........................................................................................ 33

A.2.6.1 Sending......................................................................................................... 33

A.2.6.2 Receiving ...................................................................................................... 33

A.2.7 Out-of-band signals........................................................................................................... 33

A.2.7.1 Discrimination against out-of-band input signal............................................ 33

A.2.7.2 Spurious out-of-band signals........................................................................ 33

A.2.8 Noise ................................................................................................................................. 34

A.2.8.1 Sending......................................................................................................... 34

A.2.8.2 Receiving ...................................................................................................... 34

A.2.8.3 Level of sampling frequency (receiving) ....................................................... 34

A.2.9 Delay ................................................................................................................................. 34

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Annex B (normative): Abstract Test Suite (ATS) in electronic form for the call control functions .........36

B.1 The TTCN Graphical form (TTCN.GR) .............................................................................................36

B.2 The TTCN Machine Processable form (TTCN.MP) ..........................................................................36

Annex C (informative): Acoustic shock requirements .............................................................................37

C.1 Continuous signal..............................................................................................................................37

C.2 Peak signal........................................................................................................................................37

Annex D (normative): Description of the cross-correlation method.......................................................38

D.1 Test signal.........................................................................................................................................38

D.2 Calculation.........................................................................................................................................38

Annex E (normative): TBR Requirements Table (TBR-RT)..................................................................39

E.1 Guidance for completion of the TBR-RT...........................................................................................39

E.2 Call control functions requirements TBR-RT ....................................................................................40

E.3 Transmission aspects requirements TBR-RT...................................................................................40

Annex F (informative): Test Report Format ............................................................................................42

F.1 Identification ......................................................................................................................................42

F.1.1 Identification of the Document ...........................................................................................42

F.1.2 Identification of the testing laboratory ................................................................................42

F.1.3 Identification of the client ...................................................................................................42

F.1.4 Identification of the test item ..............................................................................................42

F.1.5 Use of subcontractors........................................................................................................42

F.2 Test conditions ..................................................................................................................................43

F.3 Test equipment .................................................................................................................................43

F.4 Test results........................................................................................................................................43

F.4.1 Call control functions..........................................................................................................43

F.4.2 Speech transmission characteristics .................................................................................43

F.4.3 Power feeding....................................................................................................................43

F.5 Summary and conclusion..................................................................................................................43

Annex G (normative): List of supported telecommunication services ...................................................44

G.1 Basic telecommunication services ....................................................................................................44

G.2 Supplementary services....................................................................................................................44

Annex H (informative): Bibliography........................................................................................................45

History..........................................................................................................................................................48

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TBR 8: October 1998
Foreword

This Technical Basis for Regulation (TBR) has been produced by the ETSI Project Digital Terminals and

Access (DTA).

The present document has been produced by ETSI in response to a mandate from the European

Commission issued under Council Directive 83/189/EEC (as amended) laying down a procedure for the

provision of information in the field of technical standards and regulations.

The present document is intended to become a Harmonized Standard as requested by the above

mentioned mandate, the reference of which will be published in the Official Journal of the European

Communities referencing the Council Directive relating to telecommunications terminal equipment and

satellite earth station equipment, including the mutual recognition of their conformity (Directive 98/13/EC).

A common technical regulation may be established by the European Commission in accordance with the

Directive.

Technical specifications relevant to the 98/13/EC Directive are given in the TBR-Requirements Table

(TBR-RT) in annex E.
Transposition dates
Date of adoption of this TBR 18 September 1998
Date of latest announcement of this TBR (doa): 31 January 1999
Date of latest publication of new National Standard
or endorsement of this TBR (dop/e): 30 April 1999
Date of withdrawal of any conflicting National Standard (dow): 31 October 1999
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TBR 8: October 1998
1 Scope

This Technical Basis for Regulation (TBR) specifies the technical requirements under Article 5(g) of

Directive 98/13/EC for Terminal Equipment Type 1 (TE1 see [1]) for the telephony 3,1 kHz teleservice to

be attached to the pan-European Integrated Services Digital Network (ISDN) at an interface at the

coincident S and T reference point for a basic access.
The objective of this TBR is to ensure interworking via the network.

A test is given for each requirement in this TBR including measurement methods. The terminal equipment

may be stimulated to perform tests by additional equipment if necessary.
This TBR specifies the Article 5(g) requirements for TE1 that:

a) are intended for participation in calls that use those on-demand circuit mode basic services that are

specified in clause G.1;
b) optionally use those supplementary services that are specified in clause G.2;

c) are capable of handling either incoming calls only, outgoing calls only or both incoming and

outgoing calls.

This TBR is applicable to simple 3,1 kHz telephony terminals as well as to the 3,1 kHz telephony function

of multimedia or multi-service terminals and includes all functions necessary to provide real-time 2-way

speech conversation. This TBR only applies to items of terminal equipment with an integral user-network

interface for ISDN basic access, and which have a handset. Where a function is indicated as optional, it

need not be provided, but, where such a function is provided, the terminal needs to conform to the

requirements and tests specified in this TBR.
This TBR is not applicable to:

a) terminal equipment specially designed for the disabled (e.g., with amplification of received speech

as an aid for the hard-of-hearing);
b) terminal equipment using a radio link (e.g., cordless telephones);
c) terminal equipment for hostile environments;

d) terminal equipment with a switching function which is not covered by the definition of TE1.

NOTE: Terminals that meet the requirements of this TBR will also be suitable for connection

to the S reference point for interworking via the public network.
2 Normative references

This TBR 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 TBR only when incorporated in it by amendment or revision. For undated references the

latest edition of the publication referred to applies. Informative references can be found in annex H.

[1] CCITT Recommendation I.411 (1988): "ISDN user-network interfaces -
Reference configurations".
[2] ITU-T Recommendation P.10: "Vocabulary of terms on telephone transmission
quality and telephone sets".
[3] ITU-T Recommendation G.701 (1993): "Vocabulary of digital transmission and
multiplexing, and pulse code modulation (PCM) terms".
[4] IEC 651: "Sound level meters".
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TBR 8: October 1998
[5] TBR 3 (1995) including Amendment 1 (1998): "Integrated Services Digital
Network (ISDN); Attachment requirements for terminal equipment to connect to
an ISDN using ISDN basic access".
[6] ITU-T Recommendation G.101 (1996): "The transmission plan".
[7] ETS 300 111 (1992): "Integrated Services Digital Network (ISDN); Telephony
3,1 kHz teleservice, Service description".
[8] ITU-T Recommendation G.122 (1993): "Influence of national systems on
stability and talker echo in international connections".
[9] ETS 300 102-1 (1993): "Integrated Services Digital Network (ISDN); User-
network interface layer 3, Specifications for basic call control".
[10] CCITT Recommendation G.711 (1988): "Pulse code modulation (PCM) of voice
frequencies".
[11] CCITT Recommendation G.223 (1988): "Assumptions for the calculation of
noise on hypothetical reference circuits for telephony".
[12] ITU-T Recommendation P.51 (1996): "Artificial mouth".
[13] ITU-T Recommendation P. 57 (1996): "Artificial ears".
[14] ITU-T Recommendation O.133 (1993): "Equipment for measuring the
performance of PCM encoders and decoders".
[15] ITU-T Recommendation G.712 (1996): "Transmission performance
characteristics of pulse code modulation channels".
[16] ITU-T Recommendation P.64 (1997): "Determination of sensitivity/frequency
characteristics of local telephone systems".
[17] ISO 3 (1973): "Preferred numbers - series of preferred numbers".
[18] ITU-T Recommendation P.79 (1993): "Calculation of loudness ratings for
telephone sets".

[19] IEC 225: "Octave, half-octave and third-octave band filters intended for the

analysis of sound and vibrations".
[20] CCITT Recommendation O.131 (1988): "Quantizing distortion measuring
equipment using a pseudo-random noise test signal".
[21] CCITT Recommendation O.132 (1988): "Quantizing distortion measuring
equipment using a sinusoidal test signal".
[22] ISO/IEC 9646: "Information technology - Open Systems Interconnection -
Conformance testing methodology and framework".
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3 Definitions and abbreviations
3.1 Definitions

For the purposes of this TBR, the relevant definitions as given in ITU-T Recommendation P.10 [2] and

ITU-T Recommendation G.701 [3], apply plus the following:

Acoustic Reference Level (ARL): The acoustic level which gives -10 dBm0 at the digital interface.

dB(A): Sound level relative to 20 mPa measured using the A-weighting defined in IEC 651 [4].

dBPa: Sound pressure level relative to 1 Pa (no weighting).

dBPa(A): Sound level relative to 1 Pa measured using the A-weighting defined in IEC 651 [4].

D-factor: The computed average of the difference between the sending sensitivity using an artificial

mouth and that using a diffuse room noise source.

designated terminal: The terminal which is permitted to draw power from power source 1 under

restricted power conditions as specified in TBR 3 [5].

digital interface: The interface at the coincident S and T reference point. The digital interface shall be a 0

dBr point according to ITU-T Recommendation G.101 [6].
multimedia terminal: A terminal that simultaneously supports two or more media.
multiservice terminal: A terminal that supports two or more teleservices.

pink noise: A noise signal where the power spectrum is diminishing by 3 dB/octave.

restricted power condition: The condition indicated by the reversed polarity of the phantom voltage at

the coincident S and T reference point, as defined in TBR 3 [5].

NOTE 1: For some networks restricted power condition will be the normal operating mode.

telephony 3,1 kHz teleservice: As defined in ETS 300 111 [7].
NOTE 2: Work is currently being undertaken by ETSI to analyse the mouth-to-ear
characteristics of voice communication. The results of this work could have
consequences for the essential requirements of this TBR.

Terminal Coupling Loss (TCL): The frequency dependent coupling loss between the receiving port and

the sending port of a terminal due to:
- acoustical coupling at the user interface;

- electrical coupling due to crosstalk in the handset cord or within the electrical circuits;

- seismic coupling through the mechanical parts of the terminal.

NOTE 3: The receiving port and the sending port of a digital voice terminal is a 0 dBr point.

NOTE 4: The coupling at the user interface depends on the conditions of use.

Weighted Terminal Coupling Loss (TCLW): The weighted terminal coupling loss using the weighting of

ITU-T Recommendation G.122 [8].

3,1 kHz telephony terminal: A terminal that supports the telephony 3,1 kHz teleservice as described in

ETS 300 111 [7].
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3.2 Abbreviations

For the purposes of this TBR, the relevant abbreviations given in ITU-T Recommendation P.10 [2] and

ITU-T Recommendation G.701 [3], apply plus the following:
ARL Acoustic Reference Level
BC Bearer Capability
DTS Digital Test Sequence
EMC ElectroMagnetic Compatibility
ERP Ear Reference Point
HLC High Layer Compatibility
ICS Implementation Conformance Statement
ISDN Integrated Services Digital Network
IUT Implementation Under Test
LE acoustic earcap LEakage
LLC Low Layer Compatibility
LmeST SideTone path loss
LRGP Loudness Rating Guard-ring Position
LSTR Listener SideTone Rating
MFPB Multi Frequency PushButton
MRP Mouth Reference Point
STMR SideTone Masking Rating
TBR Technical Basis for Regulation
TBR-RT Technical Basis for Regulation - Requirements Table
TCL Terminal Coupling Loss
TCLw Weighted Terminal Coupling Loss
TE Terminal Equipment
RLR Receiving Loudness Ratings
SLR Sending Loudness Ratings
4 General

Each requirement in this TBR is either applicable to all Terminal Equipment (TE) within the scope of this

TBR, or only applicable to certain TE, depending on the functions implemented within the TE. Annex E

specifies the relationship between the requirements and the terminal. The supplier shall provide

information on the functions implemented in the terminal and this information shall be used to determine

which requirements apply and the manner in which the tests are to be performed. This information may

be provided in the form of a complete TBR Requirements Table (TBR-RT) proforma (a blank TBR-RT

proforma is provided in annex E).

Since the verification of the voice transmission depends on the proper operation of the call control

functions, the verifica
...

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