SIST I-ETS 300 763-1 E1:2003

Integrated Services Digital Network (ISDN); Audiovisual services in-band signalling testing; Part 1: Test Suite Structure and Test Purposes (TSS&TP) specification

To specify the test suite structure and test purposes for conformance testing of in-band signalling of an ISDN videptelephony terminal which uses one or two B-channels as specified in ETS 300 143, ETS 300 144 and ETS 300 145

Digitalno omrežje z integriranimi storitvami (ISDN) – Preskušanje znotrajpasovne signalizacije pri avdiovizualnih storitvah – 1. del: Zgradba preskušalnega niza in nameni preskušanja (TSS&TP) – Specifikacija

General Information

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• ICS: 33.160.60 - Multimedia systems and teleconferencing equipment
• 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
• Mandate: T-294
• Ref Project: ETSI I-ETS 300 763-1 ed.1 (1997-11) - Integrated Services Digital Network (ISDN); Audiovisual services in-band signalling testing; Part 1: Test Suite Structure and Test Purposes (TSS&TP) specification

Standards Content (Sample)

SLOVENSKI STANDARD
SIST I-ETS 300 763-1 E1:2003
01-december-2003
Digitalno omrežje z integriranimi storitvami (ISDN) – Preskušanje znotrajpasovne
signalizacije pri avdiovizualnih storitvah – 1. del: Zgradba preskušalnega niza in
nameni preskušanja (TSS&TP) – Specifikacija
Integrated Services Digital Network (ISDN); Audiovisual services in-band signalling
testing; Part 1: Test Suite Structure and Test Purposes (TSS&TP) specification
Ta slovenski standard je istoveten z: I-ETS 300 763-1 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
33.160.60 9HþSUHGVWDYQLPXOWLPHGLMVNL Multimedia systems and
VLVWHPLLQRSUHPD]D teleconferencing equipment
WHOHNRQIHUHQFH
SIST I-ETS 300 763-1 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST I-ETS 300 763-1 E1:2003

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SIST I-ETS 300 763-1 E1:2003
INTERIM
EUROPEAN I-ETS 300 763-1
TELECOMMUNICATION November 1997
STANDARD
Source: MTA Reference: DI/MTA-004120-1
Formerly: DI/TE-04120-1
ICS: 33.020
Key words: Audio, inband, ISDN, testing, TSS&TP, video
Integrated Services Digital Network (ISDN);
Audiovisual services in-band signalling testing;
Part 1: Test Suite Structure and Test Purposes (TSS&TP)
specification
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
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
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 1997. All rights reserved.

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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 .7
1 Scope .9
2 Normative references.9
3 Definitions.10
4 Abbreviations.10
5 Naming convention and document structure.11
6 Test Suite Structure.12
6.1 Test Suite Structure - full version.12
6.2 Test Suite Structure - combined version.14
6.3 Test Suite Structure - diagram.16
7 TPs for single channel communication .16
7.1 Capability .17
7.1.1 Frame and multiframe.17
7.1.1.1 Frame and multiframe alignment signal .17
7.1.1.2 Alignment.17
7.1.1.3 Bits N1-N5 .18
7.1.1.4 E_bit, C1-C4 .18
7.1.2 BAS .20
7.1.3 Basic sequences and procedures .20
7.1.3.1 Capability exchange (Sequence A) / initialization.20
7.1.3.1.1 Audio capabilities (100).22
7.1.3.1.2 Transfer-rate capabilities (100).22
7.1.3.1.3 Video capabilities (100).22
7.1.3.2 Mode switching (Sequence B).23
7.1.3.3 Mode initialization procedure .26
7.2 Valid behaviour .26
7.2.1 Frame and multiframe.26
7.2.2 BAS .27
7.2.2.1 Transfer-rate capabilities (100).27
7.2.2.2 Video and Multiple Byte Extension (MBE) capabilities
(101) .28
7.2.2.3 Low Speed Data (LSD)/MLP capabilities (101) .29
7.2.2.4 Escape table values (111) .30
7.2.2.5 Aggregate Capabilities (111)[15]-(100).30
7.2.2.6 Aggregate Capabilities (111)[15]-(101).32
7.2.2.7 Escape_16 Capabilities (111)[16]-(100) .33
7.2.2.8 Escape_16 Capabilities (111)[16]-(101) .34
7.2.2.9 Escape_16 Capabilities (111)[16] -(110) .36
7.2.2.10 Audio command values (000).37
7.2.2.11 Video, loopback and other commands (010).38
7.2.2.12 Escape_16 Commands (111)[16]-(001) .40
7.2.2.13 Control and Indication (C&I) related to video (111)[17]-
(000) .40
7.2.2.14 C&I related to audio (111)[17]-(000).41
7.2.2.15 C&I related to simple multipoint conferences not using
MLP(111)[17]-(001) .42
7.2.2.16 Data-apps (111)[18]-(101) .43
7.2.2.17 NUM (111)[19] .44
7.2.2.18 CHAR (111)[20] .44
7.2.3 Basic sequences and procedures .45

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7.2.3.1 Capability exchange (Sequence A). 45
7.2.3.2 Mode switching (Sequence B) . 46
7.2.3.3 Frame reinstatement (Sequence C) . 47
7.2.3.4 Mode forcing procedure . 48
7.2.3.5 Mode 0 forcing procedure . 50
7.2.4 Encryption Control Signal (ECS). 51
7.3 Invalid behaviour . 52
7.3.1 Frame and multiframe . 52
7.3.1.1 Alignment . 52
7.3.1.2 E_bit, C1-C4. 54
7.3.2 BAS. 54
7.3.3 Basic sequences and procedures . 54
7.3.3.1 Capability exchange (Sequence A). 54
7.3.3.2 Mode switching (Sequence B) . 55
7.3.3.3 Mode initialization procedure . 57
8 TPs for two channels communication. 57
8.1 Capability. 58
8.1.1 Frame and multiframe . 58
8.1.1.1 Frame and multiframe alignment signal. 58
8.1.1.2 Bits N1-N5. 58
8.1.1.3 Alignment and synchronization . 59
8.1.1.4 Bits L1-L3. 59
8.1.1.5 E-bit,C1-C4 . 59
8.1.1.6 TEA . 60
8.1.2 BAS. 61
8.1.3 Basis sequences and procedures . 61
8.1.3.1 Capability exchange (Sequence A). 61
8.1.3.2 Mode switching (Sequence B) . 61
8.1.3.3 Mode initialization procedure . 63
8.2 Valid behaviour. 64
8.2.1 Frame and multiframe . 64
8.2.2 BAS. 65
8.2.2.1 Audio command value (000). 65
8.2.2.2 Video, loopback and other commands (010) . 65
8.2.2.3 C&I related to simple multipoint conferences not using
MLP(111)[17]-(001). 65
8.2.3 Basic sequences and procedures . 66
8.2.3.1 Mode switching (Sequence B) . 66
8.2.3.2 Mode initialization procedure . 67
8.2.3.3 Mode forcing procedure . 67
8.2.3.4 Mode 0 forcing procedure . 68
8.3 Invalid behaviour . 69
8.3.1 Frame and multiframe . 69
8.3.1.1 Bits N1-N5. 69
8.3.1.2 Alignment and synchronization . 69
8.3.1.3 Bits L1-L3. 73
8.3.1.4 E-bit, C1-C4 . 73
8.3.1.5 TEA . 73
8.3.2 Basic sequences and Procedures . 74
8.3.2.1 Capability exchange (Sequence A). 74
8.3.2.2 Mode initialization procedure . 74
8.3.3 Loss of connection. 74
9 Combined TPs for single channel communication . 75
9.1 Capability. 75
9.1.1 Frame and multiframe . 75
9.1.2 BAS. 78
9.1.3 Basic sequences and procedures . 79
9.1.3.1 Capability exchange (Sequence A)/initialization . 79
9.1.3.1.1 Audio capabilities (100). 79
9.1.3.1.2 Transfer-rate capabilities (100) . 81
9.1.3.1.3 Video capabilities (100). 81

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9.1.3.2 Mode switching (Sequence B).82
9.1.3.3 Mode initialization procedure .85
9.2 Valid behaviour .85
9.2.1 Frame and multiframe.85
9.2.2 BAS .85
9.2.2.1 Transfer-rate capabilities (100).85
9.2.2.2 Video and MBE capabilities (101).87
9.2.2.3 LSD/MLP capabilities (101) .87
9.2.2.4 Escape table values (111) .89
9.2.2.5 Aggregate Capabilities (111)[15]-(100).89
9.2.2.6 Aggregate Capabilities (111)[15]-(101).90
9.2.2.7 Escape_16 Capabilities (111)[16]-(100) .92
9.2.2.8 Escape_16 Capabilities (111)[16]-(101) .93
9.2.2.9 Escape_16 Capabilities (111)[16]-(110) .95
9.2.2.10 Audio command values (000).96
9.2.2.11 Video, loopback and other commands (010).98
9.2.2.12 Escape_16 Commands (111)[16]-(001) .99
9.2.2.13 C&I related to video (111)[17]-(000) .99
9.2.2.14 C&I related to audio (111)[17]-(000).101
9.2.2.15 C&I related to simple multipoint conferences not using
MLP(111)[17]-(001) .101
9.2.2.16 Data-apps (111)[18]-(101) .102
9.2.2.17 NUM (111)[19] .104
9.2.2.18 CHAR (111)[20] .104
9.2.3 Basic sequences and procedures .104
9.2.3.1 Capability exchange (Sequence A) .104
9.2.3.2 Mode switching (Sequence B).106
9.2.3.3 Frame reinstatement (Sequence C) .107
9.2.3.4 Mode forcing procedure.108
9.2.4 Encryption Control Signal (ECS) .111
9.3 Invalid behaviour.112
9.3.1 Frame and multiframe.112
9.3.2 Basic sequences and procedures .115
9.3.2.1 Capability exchange (Sequence A) .115
9.3.2.2 Mode switching (Sequence B).115
9.3.2.3 Mode initialization .117
10 Combined TPs for two channels communication.118
10.1 Capability .118
10.1.1 Frame and multiframe.118
10.1.2 BAS .121
10.1.3 Basis sequences and Procedures.121
10.1.3.1 Capability exchange (Sequence A) .121
10.1.3.2 Mode switching (Sequence B).122
10.1.3.3 Mode initialization procedure .124
10.2 Valid behaviour .124
10.2.1 Frame and multiframe.124
10.2.2 BAS .125
10.2.2.1 Audio command value (000).125
10.2.2.2 Video, loopback and other commands (010).126
10.2.2.3 C&I related to simple multipoint conferences not using
MLP(111)[17] -(001) .126
10.2.3 Basic sequences and procedures .127
10.2.3.1 Mode switching (Sequence B).127
10.2.3.2 Mode initialization .127
10.2.3.3 Mode forcing procedure.128
10.3 Invalid behaviour.130
10.3.1 Frame and multiframe.130
10.3.2 Basic sequences and procedures .135
10.3.2.1 Capability exchange (Sequence A) .135
10.3.2.2 Mode initialization .135
10.3.3 Loss of connection .135

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Annex A (informative): Bibliography . 137
History. 138

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Foreword
This Interim European Telecommunication Standard (I-ETS) has been produced by the Terminal
Equipment (TE) Technical Committee and approved by Multimedia Terminals and Applications (MTA)
Project of the European Telecommunications Standards Institute (ETSI).
An ETSI standard may be given I-ETS status either because it is regarded as a provisional solution ahead
of a more advanced standard, or because it is immature and requires a "trial period". The life of an I-ETS
is limited to three years after which it can be converted into an ETS, have its life extended for a further two
years, be replaced by a new version, or be withdrawn.
This I-ETS is part 1 of a multipart standard covering "Integrated Services Digital Network (ISDN);
audiovisual services in-band signalling testing", as described below:
Part 1: "Test Suite Structure and Test Purpose (TSS & TP) specification";
Part 2: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing
(PIXIT) proforma ";
Part 3: "Protocol Implementation Conformance Statement (PICS) proforma specification".
Proposed announcement date
Date of adoption: 24 October 1997
Date of latest announcement of this I-ETS (doa): 28 February 1998

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1 Scope
This Interim European Telecommunication Standard (I-ETS) is part 1 of a three part I-ETS dealing with
conformance testing of Integrated Services Digital Network (ISDN) Videotelephony terminals. Part 2
contains the Abstract Test Suite (ATS) in Tree and Tabular Combined Notation (TTCN) and the partial
Protocol Implementation eXtra Information for Testing (PIXIT) proforma. Part 3 provides the Protocol
Implementation Conformance Statement (PICS) proforma specification.
This I-ETS contains the Test Suite Structure and Test Purposes (TSS & TP) for conformance testing the
in-band signalling aspects of an ISDN Videotelephony terminal which uses one or two B channels, and
which implements the frame structure and associated syntax as specified in ETS 300 144 [2] and the in-
band signalling procedures as specified in ETS 300 143 [1]. No testing of data commands or applications
is included among the tests. Test Purposes (TPs) for signal content of the B-channel are included in this
part of the I-ETS but no corresponding test cases have been included in part 2. Restricted network
operation is outside the scope of this I-ETS.
It may be possible to use these TPs in order to test a non-ISDN Videotelephony terminal, as long as it
provides one or two 64 kbit/s digital channels for transmission. It may also be possible to use the majority
of these TPs to test in-band signalling implementations according to ETS 300 143 [1] and ETS 300 144 [2]
using single or multiple channels up to 1 920 kbit/s.
2 Normative references
This I-ETS incorporates by dated and 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 I-ETS only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies.
[1] ETS 300 143 (1994): "Integrated Services Digital Network (ISDN); Audiovisual
services, Inband signalling procedures for audiovisual terminals using digital
channels up to 2 048 kbit/s".
[2] ETS 300 144 (1994): "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".
[3] ETS 300 145 (1994): "Integrated Services Digital Network (ISDN); Audiovisual
services, Videotelephone systems and terminal equipment operating on one or
two 64 kbit/s channels".
[4] ISO/IEC 9646 Parts 1 to 7 (1994): "Information technology - Open systems
interconnection - Conformance testing methodology and framework".
[5] CCITT Recommendation G.711 (1990): "Pulse code modulation (PCM) of voice
frequencies".
[6] CCITT Recommendation G.722 (1988): "7 KHz audio-coding within 64 kbit/s".
[7] CCITT Recommendation G.725 (1988): "System aspects for the use of the
7 KHz audio codec within 64 kbit/s".
[8] CCITT Recommendation G.728 (1988): "Coding of speech at 16 kbit/s using
low-delay code excited linear prediction".
[9] ITU-T Recommendation H.261 (1993): "Video codec for audiovisual services at
p x 64 kbit/s".

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3 Definitions
For the purposes of this I-ETS, all the definitions in ISO/IEC 9646 [4] apply, as well as the following:
additional channel: The second or subsequent channels established in a videophone call.
bit-rate allocation signal: Bit position within the frame structure to transmit commands, control and
indication signals, capabilities.
capability marker; cap marker: The first code in a capability set.
capability set; cap set: A sequence of capability codes started by the capability marker code.
ECS channel: Optional 800 kbit/s channel for use in encryption.
initial channel: The first channel established in a videophone call.
mode 0F: Transmission mode in which the initial channel contains framing, and 7-bit CCITT
Recommendation G.711 [5] audio signal is being transmitted.
mode 0U: Transmission mode in which the initial channel does not contain framing, and 8-bit CCITT
Recommendation G.711 [5] audio is being transmitted.
remote terminal: The terminal with which the IUT is communicating, i.e. the test tool.
4 Abbreviations
For the purposes of this I-ETS, the following abbreviations apply:
AIA Audio Indicate Active
AIM Audio Indicate Muted
ATS Abstract Test Suite
BAS Bit rate Allocation Signal
C&I Control and Indication
CHAR Character Information Element
CIF Common Intermediate Format (picture format defined in ITU-T
Recommendation H.261 [9])
CRC Cyclic Redundancy Check
CTP Combined Test Purpose
ECS Encryption Control Signal
FAS Frame Alignment Signal
FAW Frame Alignment Word
H0 384 kbit/s channel
H11 1 536 kbit/s channel
H12 1 920 kbit/s channel
H-MLP High speed Multi Layer Protocol
HSD High Speed Data
ISDN Integrated Services Digital Network
IUT Implementation Under Test
LCA Loopback Command "Audio loop request"
LCD Loopback Command "Digital loop request"
LCO Loopback Command "Loop off request"
LCV Loopback Command "Video loop request"
LSB Least Significant Bit
LSD Low Speed Data
MBE Multiple Byte Extension
MCC Multipoint Command Conference
MCU Multipoint Conference Unit
MCV Multipoint Command Visualization-Forcing
MIS Multipoint Indication Secondary-status
MIV Multipoint Indication Visualization
MIZ Multipoint Indication Zero-communication

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MLP Multi Layer Protocol
MPI Minimum Picture Interval
MSB Most Significant Bit
PCO Point of Control and Observation
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
QCIF Quarter Common Intermidiate Format (picture format defined in
ITU-T Recommendation H.261 [9])
SBE Single Byte Extension
SC Service Channel
SP Super test Purpose
TEA Terminal Equipment Alarm
TP Test Purpose(s)
TSS Test Suite Structure
TTCN Tree & Tabular Combined Notation
VCF Video Command "Freeze-picture request"
VCU Video Command "fast-Update request"
VIA Video Indicate Active
VIR Video Indicate Ready-to-activate
VIS Video Indicate Suppressed
5 Naming convention and document structure
This I-ETS is structured into 9 clauses. Clauses 1 to 3 deal with the scope, references and abbreviations.
Clause 4 onwards forms the main body. Clause 5 contains the Test Suite Structure (TSS). Clauses 6 and
7 contain the complete list of TPs which apply to the in-band signalling specifications referenced above:
clause 6 applying to 1B communication and clause 7 applying to 2B communication. Clauses 8 and 9 also
refer to 1B and 2B respectively, but contain the list of combined TPs.
In this I-ETS, TPs are referenced with TP, Combined Test Purposes are referenced with CTP. Super Test
Purposes are referenced with SP, with corresponding derived Test Purposes having D appended to the
reference. SPs are only used if they provide clarification of an obscure TP.
Each TP contained in clauses 6 and 7 also appears in clauses 8 and 9 respectively. Clauses 8 and 9
contain combined TPs, i.e. TPs which can be tested together in one test case. Each combined TP
contains references to the original, uncombined TPs contained within it, from clauses 6 and 7. Any TPs
which cannot be combined with others have been copied from clauses 6 and 7 into clauses 8 and 9
respectively, with unchanged references. Therefore, clauses 8 and 9 contain the complete set of TPs, and
there is a one to one mapping between these TPs and the corresponding test cases in the ATS in part 2
of this I-ETS.
TPs which do not have abstract test cases written for them are listed in italics. The usual reason for not
writing a test case lies in the fact that they are testing transmission or reception of audio or video signals
by the Implementation Under Test (IUT). The selected test method used in the abstract test suite does not
have a Point of Control and Observation (PCO) for sending and receiving audio or video signals. The
testing of audio or video signal content is outside the scope of testing in-band signalling content and to
specify a sample audio or vi
...