SIST ETS 300 267-5:1998

Integrated Services Digital Network (ISDN); Telephony 7 kHz and videotelephony teleservices; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network

..

Digitalno omrežje z integriranimi storitvami (ISDN) - Daljinski storitvi: telefonija 7 kHz in videotelefonija - Protokol digitalne naročniške signalizacije št. 1 (DSS1) - 5. del: Zgradba preskušalnega niza in namen preskušanja (TSS&TP) - Specifikacija za omrežje

General Information

• Status: Published
• Publication Date: 30-Nov-1998
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPS - Signalling protocols and switching
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-1998
• Due Date: 01-Dec-1998
• Completion Date: 01-Dec-1998
• Mandate: T-294
• Ref Project: ETSI ETS 300 267-5 ed.1 (1998-04) - Integrated Services Digital Network (ISDN); Telephony 7 kHz and videotelephony teleservices; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ETS 300 267-5:1998
01-december-1998
'LJLWDOQRRPUHåMH]LQWHJULUDQLPLVWRULWYDPL,6'1'DOMLQVNLVWRULWYLWHOHIRQLMD
N+]LQYLGHRWHOHIRQLMD3URWRNROGLJLWDOQHQDURþQLãNHVLJQDOL]DFLMHãW'66
GHO=JUDGEDSUHVNXãDOQHJDQL]DLQQDPHQSUHVNXãDQMD766 736SHFLILNDFLMD
]DRPUHåMH
Integrated Services Digital Network (ISDN); Telephony 7 kHz and videotelephony
teleservices; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test
Suite Structure and Test Purposes (TSS&TP) specification for the network
Ta slovenski standard je istoveten z: ETS 300 267-5 Edition 1
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST ETS 300 267-5:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 267-5:1998

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SIST ETS 300 267-5:1998
EUROPEAN ETS 300 267-5
TELECOMMUNICATION April 1998
STANDARD
Source: SPS Reference: DE/SPS-05048-5
ICS: 33.020
Key words: ISDN, DSS1, teleservice, 7 kHz, video, telephony, testing, TSS&TP, network
Integrated Services Digital Network (ISDN);
Telephony 7 kHz and videotelephony teleservices;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 5: Test Suite Structure and Test Purposes (TSS&TP)
specification for the network
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: [e-mail] - http://www.etsi.fr - http://www.etsi.org
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 1998. All rights reserved.

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ETS 300 267-5: April 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 Editing and Committee Support Dept." at the address shown on the title page.

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SIST ETS 300 267-5:1998
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ETS 300 267-5: April 1998
Contents
Foreword .5
Introduction.5
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .8
3.1 Definitions .8
3.2 Abbreviations .9
4 Test Suite Structure (TSS) .10
4.1 First test group level.10
4.2 Second test group level .10
4.3 Third test group level .10
4.4 Fourth test group level .10
4.5 Fifth test group level.10
4.6 Sixth test group level.11
5 Test Purposes (TP).12
5.1 Test purpose format.12
5.2 Calling network interface.13
5.2.1 Valid behaviour.13
5.2.1.1 Generic requirements.13
5.2.1.1.1 Fallback allowed .13
5.2.1.1.2 Fallback not allowed .19
5.2.1.1.3 Connection management.21
5.2.1.2 Telephony 7 kHz teleservice.21
5.2.1.2.1 Fallback allowed .21
5.2.1.2.2 Fallback not allowed .26
5.2.1.2.3 Connection management.28
5.2.1.3 Videotelephony teleservice.28
5.2.1.3.1 Fallback allowed .28
5.2.1.3.2 Fallback not allowed .33
5.2.1.3.3 Connection management.35
5.2.2 Invalid behaviour .36
5.2.2.1 Generic requirements.36
5.2.2.1.1 Fallback allowed .36
5.3 Destination interface .36
5.3.1 Valid behaviour.36
5.3.1.1 Generic requirements.36
5.3.1.1.1 Fallback allowed .36
5.3.1.1.1.1 Requirements at the coincident S and
T reference point or for interworking
with private ISDNs .36
5.3.1.1.1.2 Requirements at the coincident S and
T reference point.39
5.3.1.1.1.3 Requirements for interworking with
private ISDNs.44
5.3.1.1.2 Fallback not allowed .44
5.3.1.1.3 Connection management.46
5.3.1.2 Telephony 7 kHz teleservice.47
5.3.1.2.1 Fallback allowed .47
5.3.1.2.1.1 Requirements at the coincident S and
T reference point or for interworking
with private ISDNs .47

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ETS 300 267-5: April 1998
5.3.1.2.1.2 Requirements for interworking with
private ISDNs . 50
5.3.1.2.2 Fallback not allowed. 51
5.3.1.2.3 Connection management. 52
5.3.1.3 Videotelephony teleservice . 52
5.3.1.3.1 Fallback allowed. 52
5.3.1.3.1.1 Requirements at the coincident S and
T reference point or for interworking
with private ISDNs. 52
5.3.1.3.1.2 Requirements at the coincident S and
T reference point. 57
5.3.1.3.1.3 Requirements for interworking with
private ISDNs . 59
5.3.1.3.2 Fallback not allowed. 60
5.3.1.3.3 Connection management. 61
5.3.2 Invalid behaviour. 62
5.3.2.1 Generic requirements . 62
5.3.2.1.1 Fallback allowed. 62
5.3.2.1.1.1 Requirements at the coincident S and
T reference point or for interworking
with private ISDNs. 62
5.3.2.1.1.2 Requirements at the coincident S and
T reference point. 63
5.3.2.1.1.3 Requirements for interworking with
private ISDNs . 64
5.3.2.2 Telephony 7 kHz teleservice. 69
5.3.2.2.1 Fallback allowed. 69
5.3.2.3 Videotelephony teleservice . 70
5.3.2.3.1 Fallback allowed. 70
5.3.3 Inopportune behaviour. 76
5.3.3.1 Generic requirements . 76
5.3.3.1.1 Fallback allowed. 76
6 Compliance. 78
Annex A (informative): Cross references: Generic, telephony 7 kHz and videotelephony teleservices
test purposes . 79
A.1 Generic test purposes to telephony 7 kHz and videotelephony teleservices test purposes. 79
A.2 Telephony 7 kHz to videotelephony teleservices test purposes . 82
History. 84

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ETS 300 267-5: April 1998
Foreword
This European Telecommunication Standard (ETS) has been produced by the Signalling Protocols and
Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).
This ETS is part 5 of a multi-part standard covering the Digital Subscriber Signalling System No. one
(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) telephony 7 kHz and
videotelephony teleservices, as described below:
Part 1: "Protocol specification";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification for the user";
Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing
(PIXIT) proforma specification for the user ";
Part 5: "TSS&TP specification for the network";
Part 6: "ATS and partial PIXIT proforma specification for the network".
Transposition dates
Date of adoption of this ETS: 20 March 1998
Date of latest announcement of this ETS (doa): 31 July 1998
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 January 1999
Date of withdrawal of any conflicting National Standard (dow): 31 January 1999
Introduction
This ETS is divided into six clauses. Clauses 1 to 3 form the scope, references and abbreviations.
Clause 4 contains the test suite structure. Clause 5 contains the complete list of test purposes. Clause 6
contains the requirements for a generic or abstract test suite to comply with this ETS.
It is been assumed that the Implementation Under Test (IUT) already complies with the conformance
requirements associated with the ISDN basic call as defined in ETS 300 102-1. This is specified as a
requirement in ETS 300 267-2, clause 5. ETS 300 267-1, subclause 5.1, states that the additional generic
requirements of clause 5 are defined to be compatible with the existing requirements of ETS 300 102-1.
In cases where ETS 300 267-1 specifies that requirements in ETS 300 102-1 shall apply, it is assumed
that, because the IUT already complies with ETS 300 102-1, it also complies with these requirements.
However, when specifying the abstract test cases, including test case selection, the requirements of
ETS 300 102-1 need to be taken into account.

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1 Scope
This fifth part of ETS 300 267 is applicable to the stage three of the telephony 7 kHz and videotelephony
teleservices for the pan-European Integrated Services Digital Network (ISDN) as provided by European
public telecommunications operators at the T reference point or coincident S and T reference point (as
specified in ITU-T Recommendation I.411 [8] by means of the Digital Subscriber Signalling System
No. one (DSS1) protocol. ETS 300 267-1 [3] provides the protocol specification and ETS 300 267-2 [4] the
Protocol Implementation Conformance Statement (PICS) proforma specification. Stage three identifies the
protocol procedures and switching functions needed to support a telecommunications service (see CCITT
Recommendation I.130 [7]).
This ETS specifies the Test Suite Structure and Test Purposes (TSS&TP) for the network side. It covers
the protocol requirements as defined in ETS 300 267-1 [3] and provides test purposes for the additional
generic requirements for basic telecommunication services not defined in ETS 300 102-1 [1]
(ETS 300 267-1 [3], clause 5), for the telephony 7 kHz teleservice (ETS 300 267-1 [3], clause 6) and for
the videotelephony teleservice (ETS 300 267-1 [3], clause 7).
Two types of implementation are covered:
- an implementation which supports network requirements at the coincident S and T reference point;
- an implementation which supports network requirements for interworking with private ISDNs at the
T reference point.
2 Normative references
This ETS incorporates by dated or undated references, 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] ETS 300 102-1: "Integrated Services Digital Network (ISDN); User-network
interface layer 3; Specifications for basic call control".
[2] 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).
[3] ETS 300 267-1 (1994) including A1 (1996): "Integrated Services Digital Network
(ISDN); Telephony 7 kHz and videotelephony teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".
[4] ETS 300 267-2 (1996): "Integrated Services Digital Network (ISDN); Telephony
7 kHz and videotelephony teleservices; Digital Subscriber Signalling System No.
one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement
(PICS) proforma specification".
[5] I-ETS 300 316: "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1); Protocol Implementation Conformance
Statement (PICS) proforma specification for signalling network layer protocol for
circuit-mode basic call control (basic access, network)".
[6] CCITT Recommendation G.711 (1988): "Pulse code modulation (PCM) of voice
frequencies".
[7] CCITT Recommendation I.130 (1988): "Method for the characterization of
telecommunication services supported by an ISDN and network capabilities of
an ISDN".
[8] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces -
Reference configurations".

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[9] ISO/IEC 9646-2: "Information technology - Open systems interconnection -
Conformance testing methodology and framework - Part 2: Abstract test suite
specification".
[10] ISO/IEC 9646-3: "Information technology - Open systems interconnection -
Conformance testing methodology and framework - Part 3: The Tree and
Tabular Combined Notation".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the definitions in ETS 300 267-1 [3] apply in addition to the following
definitions:
BC1: The first (lower priority) Bearer capability information element included in a SETUP message
allowing bearer capability selection.
BC2: The second (higher priority) Bearer capability information element included in a SETUP message
allowing bearer capability selection.
BC=speech: A Bearer capability information element with its information transfer capability field set to
"speech" and its user information layer one protocol field set to "G.711 A-law".
BC=UDI/TA: A Bearer capability information element with its information transfer capability field set to
"UDI/TA" and its user information layer one protocol field set to "Recommendations H.221 and H.242".
BC=UDI: A Bearer capability information element with its information transfer capability field set to "UDI"
and its user information layer one protocol field set to "Recommendations H.221 and H.242".
bit-rate allocation signal:
Bit position within the frame structure to transmit commands, control and
indication signals, capabilities.
HLC1: The first (lower priority) High layer compatibility information element in a SETUP message allowing
high layer compatibility selection.
HLC2: The second (higher priority) High layer compatibility information element in a SETUP message
allowing high layer compatibility selection.
HLC=telephony: A High layer compatibility information element with its high layer characteristics
identification field set to "telephony".
HLC=videotelephony_ic: A High layer compatibility information element with its high layer characteristics
identification field set to "110 0000 - videotelephony (Recommendation F.721)" and its extended
audiovisual characteristics identification field set to "000 0001 - capability set of initial channel of
Recommendation H.221".
HLC=videotelephony_nex: A High layer compatibility information element with its high layer
characteristics identification field set to "110 0000 - videotelephony (Recommendation F.721)" but not
containing an extended audiovisual characteristics identification field.
HLC=videotelephony_sc: A High layer compatibility information element with its high layer
characteristics identification field set to "110 0000 - videotelephony (Recommendation F.721)" and its
extended audiovisual characteristics identification field set to "000 0010 - capability set of subsequent
channel of Recommendation H.221".
Implementation Under Test (IUT): The component of the system under test (user terminal or private
ISDN) providing the protocol specified in ETS 300 267-1 [3] at the S/T or T reference point.
in-band signalling: Signalling via the bit-rate allocation signal of the frame structure, as defined in
ETS 300 144 [2].

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mode 0F: Transmission mode in which the initial channel contains framing, and 7-bit G.711 audio signal
is being transmitted.
mode 0U: Transmission mode in which the initial channel does not contain framing, and 8-bit G.711 audio
signal is being transmitted.
PI=#1: A Progress indicator information element, with its progress description field set to #1 "Call is not
end-to-end ISDN".
PI=#2: A Progress indicator information element, with its progress description field set to #2 "Destination
address is non-ISDN".
PI=#3: A Progress indicator information element, with its progress description field set to #3 "Origination
address is non-ISDN".
PI=#4: A Progress indicator information element, with its progress description field set to #4 "Call has
returned to the ISDN".
PI=#5: A Progress indicator information element, with its progress description field set to #5 "interworking
has occurred and has resulted in a telecommunications service change".
PI=#8: A Progress indicator information element, with its progress description field set to #8 "In-band
information or appropriate pattern now available".
telephony 7 kHz fallback allowed SETUP message: A SETUP message containing two BCs, with the
first BC=speech and the second BC=UDI/TA, a HLC=telephony, and not containing a LLC.
telephony 7 kHz fallback not allowed SETUP message: A SETUP message containing a single
BC=UDI/TA and a single HLC=telephony, and not containing a LLC.
videotelephony fallback allowed SETUP message: A SETUP message containing two BCs, with the
first BC=speech and the second BC=UDI/TA, and two HLCs, with the first HLC=telephony and the second
HLC=videotelephony_ic, and not containing a LLC.
videotelephony fallback not allowed SETUP message: A SETUP message containing a single
BC=UDI/TA and a single HLC=videotelephony_ic, and not containing a LLC.
videotelephony SETUP message for CR2 : A SETUP message containing a single BC=UDI and a
single HLC=videotelephony_sc. The SETUP message is used to establish the second connection in a
videotelephony call requiring two connections.
3.2 Abbreviations
For the purposes of this ETS, the abbreviations in ETS 300 267-1 [3] and ETS 300 267-2 [4] apply. In
addition, the following abbreviations apply:
ATS Abstract Test Suite
BC Bearer Capability information element
CR1 Call Reference for the first call
CR2 Call Reference for the second call
HLC High Layer Compatibility information element
IUT Implementation Under Test
LLC Low Layer Compatibility information element
PI Progress Indicator information element
TP Test Purpose
TSS Test Suite Structure
UDI Unrestricted Digital Information
UDI/TA Unrestricted Digital Information with Tones/Announcements

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ETS 300 267-5: April 1998
4 Test Suite Structure (TSS)
The test suite is structured as a tree. Six test group levels are defined. The TSS is depicted in figure 1.
4.1 First test group level
The first test group level contains the name of the test suite:
NT7V Network side telephony 7 kHz, videotelephony teleservices and generic protocol.
4.2 Second test group level
The second test group level indicates whether the test purpose covers the originating interface or the
destination interface:
ORIG Originating Interface;
DEST Destination Interface.
4.3 Third test group level
The third test group level indicates whether the test purpose covers a requirement applicable to valid
behaviour, to invalid behaviour or to inopportune behaviour:
BV Valid Behaviour test purpose;
BI Invalid Behaviour test purpose;
BO inOpportune Behaviour test purpose.
4.4 Fourth test group level
The fourth test group level indicates whether the test purpose covers a requirement applicable to the
generic protocol, the telephony 7 kHz protocol, or the videotelephony teleservice protocol:
GEN Generic requirements. The test purpose covers a requirement applicable for the
generic part of ETS 300 267-1 [3] (clause 5);
TL7 Telephony 7 kHz teleservice. The test purpose covers a requirement applicable for the
telephony 7 kHz part of ETS 300 267-1 [3] (clause 6);
VTL Videotelephony teleservice. The test purpose covers a requirement applicable for the
videotelephony part of ETS 300 267-1 [3] (clause 7).
The group for generic requirements does not appear in the TSS. None of the generic test purposes can
be considered as testable.
4.5 Fifth test group level
The fifth test group level indicates which kind of functionality is tested and, more precisely, whether the
test purposes covers requirements applicable to fallback allowed, fallback not allowed or connection
management. Three groups are defined:
FBA FallBack Allowed: this group covers all tests where a fallback allowed SETUP
message is sent to the IUT;
FBN FallBack Not allowed: this group covers all tests where a fallback not allowed SETUP
message is sent to the IUT;
CMN Connection MaNagement: this group includes all other cases which do not test the
response to or the sending of a fallback allowed or a fallback not allowed SETUP
message. As a consequence, the clearing of a call and the establishment of a second
connection for videotelephony is tested here.

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4.6 Sixth test group level
The sixth test group level indicates the type of implementation to which the test purpose applies:
ST An implementation which supports network requirements at the coincident S and
T reference point;
PT An implementation which supports network requirements for interworking with private
ISDNs at the T reference point;
ST_T An implementation which supports network requirements at the coincident S and
T reference point or network requirements for interworking with private ISDNs at the
T reference point.
This level group does not appear when only one of them is included as subgroup.

NT7V
ORIG (1) DEST (2)
ORIG (1)
BV (1)
BI (2)
GEN VTL GEN
TL7
FBA (1) FBN (2) CMN (3) FBA (1) FBN (2) CMN (3) FBA (1) FBN (2) CMN (3) FBA (1)
DEST (2)
BV (1) BO (3)
BI (2)
GEN TL7 VTL
GEN
GEN TL7 VTL
FBA (1)
FBN (2)CMN (3)
FBA (1)FBN (2)CMN (3) FBA (1) FBN (2)CMN (3) FBA (1) FBA (1) FBA (1) FBA (1)
ST_T ST PT
ST_T PT ST PT ST PT
ST_T ST_T
Figure 1: Test suite structure

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ETS 300 267-5: April 1998
5 Test Purposes (TP)
5.1 Test purpose format
The structure of a test purpose identifier is defined in table 1.
Table 1: TP identifier naming convention scheme
_
GTP generic protocol requirement
TTP telephony 7 kHz requirement
VTP videotelephony requirement
1st digit 1 Originating Interface; 2 Destination Interface
2nd digit 1 Valid; 2 Invalid; 3 Inopportune
3rd digit 1 Fallback Allowed; 2 Fallback Not Allowed; 3 Connection Management
2 digits sequential test case number
The test purposes are formatted as tables to increase readability. The table format is shown in table 2.
Text in bold shows the text which is always present, normal text provides an explanation for each field.
Table 2: Structure of a single TP
Test purpose identifier Reference to ETS 300 267-1 [3]: Other relevant reference:
TSS reference The full test suite structure reference.
Selection criteria The criteria necessary in order to select the test. Unless otherwise specified,
references are to ETS 300 267-2 [4].
Test purpose Description of the test purpose.
Cross reference GTP/TTP/VTP cross reference data.
Any relevant comments.
Comments
The "Other relevant reference" field, where applicable, contains a reference to a specification document
containing the whole, or part, of the requirement to be tested by the test purpose.
The "Selection criteria" field consists of a Boolean expression incorporating items from ETS 300 267-2 [4]
(in which case items are not prefixed by a reference number) and from I-ETS 300 316 [5].
Some of the telephony 7 kHz or videotelephony test purposes are directly related, but not identical, to
generic ones. Where such a relationship exists, the reference to the related generic test purpose is
specified in the "Cross reference" field of the telephony 7 kHz or videotelephony test purpose.
Untestable test purposes are listed using italic font. Test purposes for generic protocol requirements
which correspond to no particular IUT have been considered as untestable.

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5.2 Calling network interface
5.2.1 Valid behaviour
5.2.1.1 Generic requirements
5.2.1.1.1 Fallback allowed
GTP111_01 Reference to ETS 300 267-1 [3]: Other relevant reference:
5.5.1.1, 5.6.1
TSS reference NT7V/ORIG/BV/GEN/FBA
Selection criteria MC 3.1 OR MC 4.1
Verify that the IUT, in Outgoing Call Proceeding call state N3, having received a
Test purpose
SETUP message, containing two BCs, BC1 and BC2, and no LLC,
is capable of sending a CONNECT message containing BC2.
Cross reference
Comments Sending of CONNECT following receipt of a SETUP, fallback from BC2 to BC1
allowed; the two BCs are included in the SETUP message in ascending order of
priority, i.e. BC2 appears subsequent to BC1: fallback did not occur either within
the IUT or at the destination user.
GTP111_02 Reference to ETS 300 267-1 [3]: Other relevant reference:
5.5.1.1, 5.6.1
TSS reference NT7V/ORIG/BV/GEN/FBA
Selection criteria MC 3.1 OR MC 4.1
Test purpose Verify that the IUT, in Call Delivered call state N4, having received a SETUP
message, containing two BCs, BC1 and BC2, and no LLC,
is capable of sending a CONNECT message containing BC2.
Cross reference
Comments Sending of CONNECT following receipt of a SETUP, fallback from BC2 to BC1
allowed; the two BCs are included in the SETUP message in ascending order of
priority, i.e. BC2 appears subsequent to BC1: fallback did not occur either within
the IUT or at the destination user.
GTP111_03 Reference to ETS 300 267-1 [3]: Other relevant reference:
5.5.1.1, 5.6.1
TSS reference NT7V/ORIG/BV/GEN/FBA
MC 3.1 OR MC 4.1
Selection criteria
Test purpose Verify that the IUT, in
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SHFLILNDFLMDIntegrated Services Digital Network (ISDN); Telephony 7 kHz and videotelephony teleservices; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 5: Test Suite Structure and Test Purposes (TSS&TP) specification for the network33.020Telekomunikacije na splošnoTelecommunications in generalICS:Ta slovenski standard je istoveten z:ETS 300 267-5 E13SIST ETS 300 267-5:1998en01-DSULO-19983SIST ETS 300 267-5:1998SLOVENSKI
STANDARD



SIST ETS 300 267-5:1998



DRAFTEUROPEANprETS 300 267-5TELECOMMUNICATIONMarch 1997STANDARDSource: ETSI TC-SPSReference: DE/SPS-05048-5ICS:33.020Key words:ISDN, DSS1, teleservice, 7 kHz, video, telephony, testing, TSS&TP, networkIntegrated Services Digital Network (ISDN);Telephony 7 kHz and videotelephony teleservices;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 5: Test Suite Structure and Test Purposes (TSS&TP)specification for the networkETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail].: [phone] - Fax: [phone]Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1997. All rights reserved.SIST ETS 300 267-5:1998



Page 2Draft prETS 300 267-5: March 1997Whilst 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.SIST ETS 300 267-5:1998



Page 3Draft prETS 300 267-5: March 1997ContentsForeword.5Introduction.51Scope.72Normative references.73Definitions and abbreviations.83.1Definitions.83.2Abbreviations.94Test Suite Structure (TSS).104.1First test group level.104.2Second test group level.104.3Third test group level.104.4Fourth test group level.104.5Fifth test group level.104.6Sixth test group level.115Test Purposes (TP).125.1Test purpose format.125.2Calling network interface.135.2.1Valid behaviour.135.2.1.1Generic requirements.135.2.1.1.1Fallback allowed.135.2.1.1.2Fallback not allowed.195.2.1.1.3Connection management.215.2.1.2Telephony 7 kHz teleservice.215.2.1.2.1Fallback allowed.215.2.1.2.2Fallback not allowed.265.2.1.2.3Connection management.285.2.1.3Videotelephony teleservice.285.2.1.3.1Fallback allowed.285.2.1.3.2Fallback not allowed.335.2.1.3.3Connection management.355.2.2Invalid behaviour.365.2.2.1Generic requirements.365.2.2.1.1Fallback allowed.365.3Destination interface.365.3.1Valid behaviour.365.3.1.1Generic requirements.365.3.1.1.1Fallback allowed.365.3.1.1.1.1Requirements at the coincident S andT reference point or for interworkingwith private ISDNs.365.3.1.1.1.2Requirements at the coincident S andT reference point.395.3.1.1.1.3Requirements for interworking withprivate ISDNs.445.3.1.1.2Fallback not allowed.445.3.1.1.3Connection management.465.3.1.2Telephony 7 kHz teleservice.475.3.1.2.1Fallback allowed.475.3.1.2.1.1Requirements at the coincident S andT reference point or for interworkingwith private ISDNs.47SIST ETS 300 267-5:1998



Page 4Draft prETS 300 267-5: March 19975.3.1.2.1.2Requirements for interworking withprivate ISDNs.505.3.1.2.2Fallback not allowed.515.3.1.2.3Connection management.525.3.1.3Videotelephony teleservice.525.3.1.3.1Fallback allowed.525.3.1.3.1.1Requirements at the coincident S andT reference point or for interworkingwith private ISDNs.525.3.1.3.1.1Requirements at the coincident S andT reference point.575.3.1.3.1.1Requirements for interworking withprivate ISDNs.595.3.1.3.2Fallback not allowed.605.3.1.3.3Connection management.615.3.2Invalid behaviour.625.3.2.1Generic requirements.625.3.2.1.1Fallback allowed.625.3.2.1.1.1Requirements at the coincident S andT reference point or for interworkingwith private ISDNs.625.3.2.1.1.2Requirements at the coincident S andT reference point.635.3.2.1.1.3Requirements for interworking withprivate ISDNs.645.3.2.2Telephony 7 kHz teleservice.695.3.2.2.1Fallback allowed.695.3.2.3Videotelephony teleservice.705.3.2.3.1Fallback allowed.705.3.3Inopportune behaviour.765.3.3.1Generic requirements.765.3.3.1.1Fallback allowed.766Compliance.78Annex A (informative):Cross references: Generic, telephony 7 kHz and videotelephony teleservicestest purposes.79A.1Generic test purposes to telephony 7 kHz and videotelephony teleservices test purposes.79A.2Telephony 7 kHz to videotelephony teleservices test purposes.82History.84SIST ETS 300 267-5:1998



Page 5Draft prETS 300 267-5: March 1997ForewordThis draft European Telecommunication Standard (ETS) has been produced by the Signalling Protocolsand Switching (SPS) Technical Committee of the European Telecommunications Standards Institute(ETSI), and is now submitted for the Public Enquiry phase of the ETSI standards approval procedure.This ETS is part 5 of a multi-part standard covering the Digital Subscriber Signalling System No. one(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) telephony 7 kHz andvideotelephony teleservices, as described below:Part 1:"Protocol specification";Part 2:"Protocol Implementation Conformance Statement (PICS) proforma specification";Part 3:"Test Suite Structure and Test Purposes (TSS&TP) specification for the user";Part 4:"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing(PIXIT) proforma specification for the user ";Part 5:"TSS&TP specification for the network";Part 6:"ATS and partial PIXIT proforma specification for the network".Proposed transposition datesDate of latest announcement of this ETS (doa):3 months after ETSI publicationDate of latest publication of new National Standardor endorsement of this ETS (dop/e):6 months after doaDate of withdrawal of any conflicting National Standard (dow):6 months after doaIntroductionThis ETS is divided into six clauses. Clauses 1 to 3 form the scope, references and abbreviations.Clause 4 contains the test suite structure. Clause 5 contains the complete list of test purposes. Clause 6contains the requirements for a generic or abstract test suite to comply with this ETS.It is been assumed that the Implementation Under Test (IUT) already complies with the conformancerequirements associated with the ISDN basic call as defined in ETS 300 102-1. This is specified as arequirement in ETS 300 267-2, clause 5. ETS 300 267-1, subclause 5.1, states that the additional genericrequirements of clause 5 are defined to be compatible with the existing requirements of ETS 300 102-1.In cases where ETS 300 267-1 specifies that requirements in ETS 300 102-1 shall apply, it is assumedthat, because the IUT already complies with ETS 300 102-1, it also complies with these requirements.However, when specifying the abstract test cases, including test case selection, the requirements ofETS 300 102-1 need to be taken into account.SIST ETS 300 267-5:1998



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Page 7Draft prETS 300 267-5: March 19971ScopeThis fifth part of ETS 300 267 is applicable to the stage three of the telephony 7 kHz and videotelephonyteleservices for the pan-European Integrated Services Digital Network (ISDN) as provided by Europeanpublic telecommunications operators at the T reference point or coincident S and T reference point (asspecified in ITU-T Recommendation I.411 [8] by means of the Digital Subscriber Signalling SystemNo. one (DSS1) protocol. ETS 300 267-1 [3] provides the protocol specification and ETS 300 267-2 [4] theProtocol Implementation Conformance Statement (PICS) proforma specification. Stage three identifies theprotocol procedures and switching functions needed to support a telecommunications service (see CCITTRecommendation I.130 [7]).This ETS specifies the Test Suite Structure and Test Purposes (TSS&TP) for the network side. It coversthe protocol requirements as defined in ETS 300 267-1 [3] and provides test purposes for the additionalgeneric requirements for basic telecommunication services not defined in ETS 300 102-1 [1](ETS 300 267-1 [3], clause 5), for the telephony 7 kHz teleservice (ETS 300 267-1 [3], clause 6) and forthe videotelephony teleservice (ETS 300 267-1 [3], clause 7).Two types of implementation are covered:-an implementation which supports network requirements at the coincident S and T reference point;-an implementation which supports network requirements for interworking with private ISDNs at theT reference point.2Normative referencesThis ETS incorporates by dated or undated references, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision. For undated references the latestedition of the publication referred to applies.[1]ETS 300 102-1: "Integrated Services Digital Network (ISDN); User-networkinterface layer 3; Specifications for basic call control".[2]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 forinband signalling" (equivalent to ITU-T Recommendation H.221).[3]ETS 300 267-1 (1994) including A1 (1996): "Integrated Services Digital Network(ISDN); Telephony 7 kHz and videotelephony teleservices; Digital SubscriberSignalling System No. one (DSS1) protocol; Part 1: Protocol specification".[4]ETS 300 267-2 (1996): "Integrated Services Digital Network (ISDN); Telephony7 kHz and videotelephony teleservices; Digital Subscriber Signalling System No.one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement(PICS) proforma specification".[5]I-ETS 300 316: "Integrated Services Digital Network (ISDN); Digital SubscriberSignalling System No. one (DSS1); Protocol Implementation ConformanceStatement (PICS) proforma specification for signalling network layer protocol forcircuit-mode basic call control (basic access, network)".[6]CCITT Recommendation G.711 (1988): "Pulse code modulation (PCM) of voicefrequencies".[7]CCITT Recommendation I.130 (1988): "Method for the characterization oftelecommunication services supported by an ISDN and network capabilities ofan ISDN".[8]ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces -Reference configurations".SIST ETS 300 267-5:1998



Page 8Draft prETS 300 267-5: March 1997[9]ISO/IEC 9646-2: "Information technology - Open systems interconnection -Conformance testing methodology and framework - Part 2: Abstract test suitespecification".[10]ISO/IEC 9646-3: "Information technology - Open systems interconnection -Conformance testing methodology and framework - Part 3: The Tree andTabular Combined Notation".3Definitions and abbreviations3.1DefinitionsFor the purposes of this ETS, the definitions in ETS 300 267-1 [3] apply in addition to the followingdefinitions:BC1: The first (lower priority) Bearer capability information element included in a SETUP messageallowing bearer capability selection.BC2: The second (higher priority) Bearer capability information element included in a SETUP messageallowing bearer capability selection.BC=speech: A Bearer capability information element with its information transfer capability field set to"speech" and its user information layer one protocol field set to "G.711 A-law".BC=UDI/TA: A Bearer capability information element with its information transfer capability field set to"UDI/TA" and its user information layer one protocol field set to "Recommendations H.221 and H.242".BC=UDI: A Bearer capability information element with its information transfer capability field set to "UDI"and its user information layer one protocol field set to "Recommendations H.221 and H.242".bit-rate allocation signal: Bit position within the frame structure to transmit commands, control andindication signals, capabilities.HLC1: The first (lower priority) High layer compatibility information element in a SETUP message allowinghigh layer compatibility selection.HLC2: The second (higher priority) High layer compatibility information element in a SETUP messageallowing high layer compatibility selection.HLC=telephony: A High layer compatibility information element with its high layer characteristicsidentification field set to "telephony".HLC=videotelephony_ic: A High layer compatibility information element with its high layer characteristicsidentification field set to "110 0000 - videotelephony (Recommendation F.721)" and its extendedaudiovisual characteristics identification field set to "000 0001 - capability set of initial channel ofRecommendation H.221".HLC=videotelephony_nex: A High layer compatibility information element with its high layercharacteristics identification field set to "110 0000 - videotelephony (Recommendation F.721)" but notcontaining an extended audiovisual characteristics identification field.HLC=videotelephony_sc: A High layer compatibility information element with its high layercharacteristics identification field set to "110 0000 - videotelephony (Recommendation F.721)" and itsextended audiovisual characteristics identification field set to "000 0010 - capability set of subsequentchannel of Recommendation H.221".Implementation Under Test (IUT): The component of the system under test (user terminal or privateISDN) providing the protocol specified in ETS 300 267-1 [3] at the S/T or T reference point.in-band signalling: Signalling via the bit-rate allocation signal of the frame structure, as defined inETS 300 144 [2].SIST ETS 300 267-5:1998



Page 9Draft prETS 300 267-5: March 1997mode 0F: Transmission mode in which the initial channel contains framing, and 7-bit G.711 audio signalis being transmitted.mode 0U: Transmission mode in which the initial channel does not contain framing, and 8-bit G.711 audiosignal is being transmitted.PI=#1: A Progress indicator information element, with its progress description field set to #1 "Call is notend-to-end ISDN".PI=#2: A Progress indicator information element, with its progress description field set to #2 "Destinationaddress is non-ISDN".PI=#3: A Progress indicator information element, with its progress description field set to #3 "Originationaddress is non-ISDN".PI=#4: A Progress indicator information element, with its progress description field set to #4 "Call hasreturned to the ISDN".PI=#5: A Progress indicator information element, with its progress description field set to #5 "interworkinghas occurred and has resulted in a telecommunications service change".PI=#8: A Progress indicator information element, with its progress description field set to #8 "In-bandinformation or appropriate pattern now available".telephony 7 kHz fallback allowed SETUP message: A SETUP message containing two BCs, with thefirst BC=speech and the second BC=UDI/TA, a HLC=telephony, and not containing a LLC.telephony 7 kHz fallback not allowed SETUP message: A SETUP message containing a singleBC=UDI/TA and a single HLC=telephony, and not containing a LLC.videotelephony fallback allowed SETUP message: A SETUP message containing two BCs, with thefirst BC=speech and the second BC=UDI/TA, and two HLCs, with the first HLC=telephony and the secondHLC=videotelephony_ic, and not containing a LLC.videotelephony fallback not allowed SETUP message: A SETUP message containing a singleBC=UDI/TA and a single HLC=videotelephony_ic, and not containing a LLC.videotelephony SETUP message for CR2 : A SETUP message containing a single BC=UDI and asingle HLC=videotelephony_sc. The SETUP message is used to establish the second connection in avideotelephony call requiring two connections.3.2AbbreviationsFor the purposes of this ETS, the abbreviations in ETS 00 267-1 [3] and ETS 300 267-2 [4] apply. Inaddition, the following abbreviations apply.ATSAbstract Test SuiteBCBearer Capability information elementCR1Call Reference for the first callCR2Call Reference for the second callHLCHigh Layer Compatibility information elementIUTImplementation under testLLCLow Layer Compatibility information elementPIProgress Indicator information elementTPTest PurposeTSSTest Suite StructureUDIUnrestricted Digital InformationUDI/TAUnrestricted Digital Information with Tones/AnnouncementsSIST ETS 300 267-5:1998



Page 10Draft prETS 300 267-5: March 19974Test Suite Structure (TSS)The test suite is structured as a tree. Six test group levels are defined. The TSS is depicted in figure 1.4.1First test group levelThe first test group level contains the name of the test suite:NT7VNetwork side telephony 7 kHz, videotelephony teleservices and generic protocol.4.2Second test group levelThe second test group level indicates whether the test purpose covers the originating interface or thedestination interface:ORIGOriginating Interface;DESTDestination Interface.4.3Third test group levelThe third test group level indicates whether the test purpose covers a requirement applicable to validbehaviour, to invalid behaviour or to inopportune behaviour:BVValid Behaviour test purpose;BIInvalid Behaviour test purpose;BOinOpportune Behaviour test purpose.4.4Fourth test group levelThe fourth test group level indicates whether the test purpose covers a requirement applicable to thegeneric protocol, the telephony 7 kHz protocol, or the videotelephony teleservice protocol:GENGeneric requirements. The test purpose covers a requirement applicable for thegeneric part of ETS 300 267-1 [3] (clause 5);TL7Telephony 7 kHz teleservice. The test purpose covers a requirement applicable for thetelephony 7 kHz part of ETS 300 267-1 [3] (clause 6);VTLVideotelephony teleservice. The test purpose covers a requirement applicable for thevideotelephony part of ETS 300 267-1 [3] (clause 7).The group for generic requirements does not appear in the TSS. None of the generic test purposes canbe considered as testable.4.5Fifth test group levelThe fifth test group level indicates which kind of functionality is tested and, more precisely, whether thetest purposes covers requirements applicable to fallback allowed, fallback not allowed or connectionmanagement. Three groups are defined:FBAFallBack Allowed: this group covers all tests where a fallback allowed SETUPmessage is sent to the IUT;FBNFallBack Not allowed: this group covers all tests where a fallback not allowed SETUPmessage is sent to the IUT;CMNConnection MaNagement: this group includes all other cases which do not test theresponse to or the sending of a fallback allowed or a fallback not allowed SETUPmessage. As a consequence, the clearing of a call and the establishment of a secondconnection for videotelephony is tested here.SIST ETS 300 267-5:1998



Page 11Draft prETS 300 267-5: March 19974.6Sixth test group levelThe sixth test group level indicates the type of implementation to which the test purpose applies:STAn implementation which supports network requirements at the coincident S andT reference point;PTAn implementation which supports network requirements for interworking with privateISDNs at the T reference point;ST_TAn implementation which supports network requirements at the coincident S andT reference point or network requirements for interworking with private ISDNs at theT reference point.This level group does not appear when only one of them is included as subgroup. ORIG
(1)NT7VBV (1)ORIG
(1)TL7CMN (3)GENFBN (2)FBA (1)FBA (1)FBN (2)VTLFBA (1)FBN (2)CMN (3)BI (2)FBA (1)GENCMN (3)DEST
(2)DEST
(2)TL7BV
(1)GENTL7BI (2)FBA (1)VTLBO (3)FBA (1)FBA (1)FBA (1)GENFBN (2)GENFBA (1)ST_TSTPTVTLCMN (3)FBN (2)FBA (1)ST_TSTPTFBA (1)FBN (2)CMN (3)PTST_TCMN (3)ST_TSTPTFigure 1: Test suite structureSIST ETS 300 267-5:1998



Page 12Draft prETS 300 267-5: March 19975Test Purposes (TP)5.1Test purpose formatThe structure of a test purpose identifier is defined in table 1.Table 1: TP identifier naming convention scheme_GTPgeneric protocol requirementTTPtelephony 7 kHz requirementVTPvideotelephony requirement1st digit1 Originating Interface; 2 Destination Interface2nd digit1 Valid; 2 Invalid; 3 Inopportune3rd digit1 Fallback Allowed; 2 Fallback Not Allowed; 3 Connection Management2 digitssequential test case numberThe test purposes are formatted as tables to increase readability. The table format is shown in table 2.Text in bold shows the text which is always present, normal text provides an explanation for each field.Table 2: Structure of a single TPTest purpose identifierReference to ETS 300 267-1 [3]:Other relevant reference:TSS referenceThe full test suite structure reference.Selection criteriaThe criteria necessary in order to select the test. Unless otherwise specified,references are to ETS 300 267-2 [4].Test purposeDescription of the test purpose.Cross referenceGTP/TTP/VTP cross reference data.CommentsAny relevant comments.The "Other relevant reference" field, where applicable, contains a reference to a specification documentcontaining the whole, or part, of the requirement to be tested by the test purpose.The "Selection criteria" field consists of a Boolean expression incorporating items from ETS 300 267-2 [4](in which case items are not prefixed by a reference number) and from I-ETS 300 316 [5].Some of the telephony 7 kHz or videotelephony test purposes are directly related, but not identical, togeneric ones. Where such a relationship exists, the reference to the related generic test purpose isspecified in the "Cross reference" field of the telephony 7 kHz or videotelephony test purpose.Untestable test purposes are listed using italic font. Test purposes for generic protocol requirementswhich correspond to no particular IUT have been considered as untestable.SIST ETS 300 267-5:1998



Page 13Draft prETS 300 267-5: March 19975.2Calling network interface5.2.1Valid behaviour5.2.1.1Generic requirements5.2.1.1.1Fallback allowedGTP111_01Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Outgoing Call Proceeding call state N3, having received aSETUP message, containing two BCs, BC1 and BC2, and no LLC,is capable of sending a CONNECT message containing BC2.Cross referenceCommentsSending of CONNECT following receipt of a SETUP, fallback from BC2 to BC1allowed; the two BCs are included in the SETUP message in ascending order ofpriority, i.e. BC2 appears subsequent to BC1: fallback did not occur either withinthe IUT or at the destination user.GTP111_02Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Call Delivered call state N4, having received a SETUPmessage, containing two BCs, BC1 and BC2, and no LLC,is capable of sending a CONNECT message containing BC2.Cross referenceCommentsSending of CONNECT following receipt of a SETUP, fallback from BC2 to BC1allowed; the two BCs are included in the SETUP message in ascending order ofpriority, i.e. BC2 appears subsequent to BC1: fallback did not occur either withinthe IUT or at the destination user.GTP111_03Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Outgoing Call Proceeding call state N3, having received aSETUP message, containing two BCs, BC1 and BC2, and no LLC,is capable of sending a CONNECT message containing BC1.Cross referenceCommentsSending of CONNECT: fallback occurred, to BC1, at the destination user.GTP111_04Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Call Delivered call state N4, having received a SETUPmessage, containing two BCs, BC1 and BC2, and no LLC,is capable of sending a CONNECT message containing BC1.Cross referenceCommentsSending of CONNECT: fallback occurred, to BC1, at the destination user.SIST ETS 300 267-5:1998



Page 14Draft prETS 300 267-5: March 1997GTP111_05Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Idle call state N0, on receipt of a SETUP messagecontaining two BCs, BC1 and BC2, and no LLC,is capable of sending a CALL PROCEEDING, PROGRESS or ALERTINGmessage containing a PI=#5 and BC1.Cross referenceCommentsSending of CALL PROCEEDING, PROGRESS or ALERTING: fallback occurred,to BC1, within the IUT.GTP111_06Reference to ETS 300 267-1 [3]:5.5.1.1, 5.6.1Other relevant reference:TSS referenceNT7V/ORIG/BV/GEN/FBASelection criteriaMC 3.1 OR MC 4.1Test purposeVerify that the IUT, in Outgoing Call Proceeding call state N3, having received aSETUP message, containing two BCs, BC1 and BC2, and no LLC, on sending aPROGRESS message containing a PI=#5,does not stop timers as described in ETS 300
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