ETSI EN 300 267-4 V1.2.4 (2000-06)

SLOVENSKI STANDARD
SIST EN 300 267-4 V1.2.4:2005
01-april-2005
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Integrated Services Digital Network (ISDN); Telephony 7 kHz, videotelephony,
audiographic conference and videoconference teleservices; Digital Subscriber Signalling
System No. one (DSS1) protocol; Part 4: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT) proforma specification for the user
Ta slovenski standard je istoveten z: EN 300 267-4 Version 1.2.4
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 267-4 V1.2.4:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 267-4 V1.2.4:2005

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SIST EN 300 267-4 V1.2.4:2005
ETSI EN 300 267-4 V1.2.4 (2000-06)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Telephony 7 kHz, videotelephony, audiographic conference
and videoconference teleservices;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 4: Abstract Test Suite (ATS) and partial Protocol
Implementation eXtra Information for Testing (PIXIT)
proforma specification for the user



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SIST EN 300 267-4 V1.2.4:2005
2 ETSI EN 300 267-4 V1.2.4 (2000-06)
Reference
REN/SPS-05112-4
Keywords
7kHz, ATS, audio, conf, DSS1, ISDN, PIXIT,
telephony, teleservice, user, video
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© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 267-4 V1.2.4:2005
3 ETSI EN 300 267-4 V1.2.4 (2000-06)
Contents
Intellectual Property Rights.5
Foreword .5
1 Scope.6
2 References.6
3 Definitions and abbreviations .7
3.1 Definitions.7
3.2 Abbreviations.7
4 Introduction.8
5 Abstract Test Method (ATM) .8
5.1 Description of ATM used.8
5.2 Conventions for test components and PCOs .9
5.3 Description of PCOs .9
5.3.1 D-channel PCO.9
5.3.2 B-channels PCOs.10
5.4 Naming conventions.10
5.4.1 Test cases .10
5.4.2 Variables and parameters .11
5.4.3 Trees and subtrees .11
6 Untestable test purposes.11
7 ATS conventions.12
7.1 Declarations part .12
7.1.1 Type definitions.12
7.1.1.1 Simple type definitions.12
7.1.1.2 Structured type definitions.12
7.1.1.2.1 TTCN structured type definitions .12
7.1.1.2.2 ASN.1 structured type definitions.12
7.1.1.3 ASP type definitions.12
7.1.1.3.1 TTCN ASP type definitions.12
7.1.1.3.2 ASN.1 ASP type definitions .13
7.1.1.4 PDU type definitions .13
7.1.1.4.1 TTCN PDU type definitions .13
7.1.1.4.2 ASN.1 PDU type definitions.13
7.1.2 Test suite constants.13
7.1.3 Test suite parameters .13
7.1.4 Variables .14
7.1.4.1 Test suite variables .14
7.1.4.2 Test case variables.14
7.1.5 Test suite operation definitions.14
7.2 Constraints part .15
7.2.1 Structured type constraint declaration .15
7.2.2 ASN.1 type constraint declaration.15
7.2.3 ASP type constraint declaration .15
7.2.3.1 ASN.1 ASP type constraint declaration.15
7.2.3.2 TTCN ASP type constraint declaration .15
7.2.4 PDU type constraint declaration.15
7.2.4.1 ASN.1 PDU type constraint declaration.15
7.2.4.2 TTCN PDU type constraint declaration .15
7.2.5 Derived constraints.15
7.2.6 Parameterized constraints.15
7.2.7 Value assignment.16
7.2.7.1 Specific values.16
7.2.7.2 Matching values.16
ETSI

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SIST EN 300 267-4 V1.2.4:2005
4 ETSI EN 300 267-4 V1.2.4 (2000-06)
7.3 Dynamic part.16
7.3.1 Test cases .16
7.3.2 Test steps.16
7.3.3 Defaults .16
7.3.4 Synchronization.17
8 ATS to TP map.19
9 PCTR conformance.19
10 PIXIT conformance.19
11 ATS conformance .19
Annex A (normative): Protocol Conformance Test Report (PCTR) proforma.20
A.1 Identification summary .20
A.1.1 Protocol conformance test report.20
A.1.2 IUT identification.20
A.1.3 Testing environment.20
A.1.4 Limits and reservations.21
A.1.5 Comments.21
A.2 IUT Conformance status .21
A.3 Static conformance summary.21
A.4 Dynamic conformance summary.22
A.5 Static conformance review report .22
A.6 Test campaign report.23
A.7 Observations.25
Annex B (normative): Partial PIXIT proforma.26
B.1 Identification summary .26
B.2 Abstract test suite summary .26
B.3 Test laboratory .26
B.4 Client (of the test laboratory).27
B.5 System Under Test (SUT).27
B.6 Protocol information .28
B.6.1 Protocol identification .28
B.6.2 Configuration to be tested .28
B.6.3 Actions required to stimulate IUT .29
B.6.4 Test management timers.29
B.6.5 Parameter values.30
Annex C (normative): Abstract Test Suite (ATS).31
C.1 The TTCN Graphical form (TTCN.GR).31
C.2 The TTCN Machine Processable form (TTCN.MP) .31
Annex D (informative): General structure of ATS.32
History.33
ETSI

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SIST EN 300 267-4 V1.2.4:2005
5 ETSI EN 300 267-4 V1.2.4 (2000-06)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://www.etsi.org/ipr).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Services and
Protocols for Advanced Networks (SPAN).
The present document is part 4 of a multi-part EN covering the Digital Subscriber Signalling System No. one (DSS1)
protocol specification for the Integrated Services Digital Network (ISDN) telephony 7 kHz, videotelephony,
audiographic conference and videoconference 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: "Test Suite Structure and Test Purposes (TSS&TP) specification for the network";
Part 6: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for the network".
National transposition dates
Date of adoption of this EN: 26 May 2000
Date of latest announcement of this EN (doa): 31 August 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2001
Date of withdrawal of any conflicting National Standard (dow): 28 February 2001
ETSI

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SIST EN 300 267-4 V1.2.4:2005
6 ETSI EN 300 267-4 V1.2.4 (2000-06)
1 Scope
The present document specifies the Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information
for Testing (PIXIT) proforma for the User side of the T reference point or coincident S and T reference point (as
defined in ITU-T Recommendation I.411 [16]) of implementations conforming to the stage three standard of the
telephony 7 kHz, videotelephony, audiographic conference and videoconference teleservices for the pan-European
Integrated Services Digital Network (ISDN) by means of the Digital Subscriber Signalling System No. one (DSS1)
protocol, EN 300 267-1 [5].
EN 300 267-3 [7] specifies the Test Suite Structure and Test Purposes (TSS&TP) related to this ATS and partial PIXIT
proforma specification. Other parts specify the TSS&TP and the ATS and partial PIXIT proforma for the Network side
of the T reference point or coincident S and T reference point of implementations conforming to EN 300 267-1 [5].
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
[1] ETSI ETS 300 143: "Integrated Services Digital Network (ISDN); Audiovisual services Inband
signalling procedures for audiovisual terminals using digital channels up to 2 048 kbit/s".
[2] ETSI 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".
[3] ETSI ETS 300 145: "Integrated Services Digital Network (ISDN); Audiovisual services;
Videotelephone systems and terminal equipment operating on one or two 64 kbit/s channels".
[4] ETSI EN 300 196-1 (V1.2): "Integrated Services Digital Network (ISDN); Generic functional
protocol for the support of supplementary services; Digital Subscriber Signalling System No. one
(DSS1) protocol; Part 1: Protocol specification".
[5] ETSI EN 300 267-1 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".
[6] ETSI EN 300 267-2 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification".
[7] ETSI EN 300 267-3 (V1.2): "Integrated Services Digital Network (ISDN); Telephony 7 kHz,
videotelephony, audiographic conference and videoconference teleservices; Digital Subscriber
Signalling System No. one (DSS1) protocol; Part 3: Test Suite Structure and Test Purposes
(TSS&TP) specification for the user".
[8] ETSI EN 300 403-1 (V1.2): "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call
control; Part 1: Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
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SIST EN 300 267-4 V1.2.4:2005
7 ETSI EN 300 267-4 V1.2.4 (2000-06)
[9] ETSI ETS 300 403-5: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control;
Part 5: Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for
Testing (PIXIT) proforma specification for the user".
[10] ETSI I-ETS 300 763-2: "Integrated Services Digital Network (ISDN); Audiovisual services in-
band signalling testing; Part 2: Abstract Test Suite (ATS) and partial Protocol Implementation
eXtra Information for Testing (PIXIT) proforma specification".
[11] ISO/IEC 9646-1 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 1: General concepts".
[12] ISO/IEC 9646-2 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 2: Abstract Test Suite specification".
[13] ISO/IEC 9646-3 (1998): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 3: The Tree and Tabular Combined Notation (TTCN)".
[14] ISO/IEC 9646-4 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 4: Test realization".
[15] ISO/IEC 9646-5 (1994): "Information technology; Open Systems Interconnection; Conformance
testing methodology and framework; Part 5: Requirements on test laboratories and clients for the
conformance assessment process".
[16] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
[17] ETSI EN 300 403-3 (V1.2): "Integrated Services Digital Network (ISDN); Digital Subscriber
Signalling System No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call
control; Part 3: Protocol Implementation Conformance Statement (PICS) proforma specification".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the definitions given in EN 300 267-1 [5], ISO/IEC 9646, parts 1 [11]
to 5 [15] and the following terms and definitions apply:
additional B-channel: second or subsequent B-channel established in a videotelephony call.
initial B-channel: first channel established in a videotelephony call.
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ASP Abstract Service Primitive
ATM Abstract Test Method
ATS Abstract Test Suite
BAS Bit rate Allocation Signal
CES Connection Endpoint Suffix
CM Co-ordination Message
CP Co-ordination Point
CRC Cyclic Redundancy Check
ExTS Executable Test Suite
FAW Frame Alignment Word
IUT Implementation Under Test
LT Lower Tester
MOT Means Of Testing
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SIST EN 300 267-4 V1.2.4:2005
8 ETSI EN 300 267-4 V1.2.4 (2000-06)
MTC Main Test Component
PCO Point of Control and Observation
PCTR Protocol Conformance Test Report
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
PIXIT Protocol Implementation eXtra Information for Testing
PTC Parallel Test Component
SUT System Under Test
TP Test Purpose
TSS Test Suite Structure
TTCN Tree and Tabular Combined Notation
4 Introduction
Implementations Under Test (IUTs) which are to be tested using this ATS are required to have previously been tested
for conformity against and passed the test suite for EN 300 403-1 [8], and the ATS related to ETS 300 143 [1],
ETS 300 144 [2] and ETS 300 145 [3] which is contained in I-ETS 300 763-2 [10].
Any messages or fields within messages which are introduced by ETS 300 403-1 [8] are included in this ATS.
Behaviours in test cases have been described in such a way to be able to take into account ETS 300 403-1 [8] basic call
standard. This ATS also takes into account messages defined for the supplementary services, in particular
ETS 300 196-1 [4]. When such messages are received, they are ignored by the ATS as this is not within the scope of the
present document.
5 Abstract Test Method (ATM)
5.1 Description of ATM used
This ATS describes the testing specification of the protocol procedures and switching functions needed to support the
videotelephony, telephony 7 kHz, audiographic conference and videoconference teleservices at T or coincident S and T
reference points for the user.
Testing activity will take place on the D-channel and on one or two B-channels depending on which teleservice is
supported and where the service is provided. The videotelephony, audiographic conference and videoconference
teleservices can employ two or more B-channels and telephony 7 kHz teleservice up to one B-channel. Only S and T
reference point has an associated in-band protocol entity and has to follow requirements on B-channels.
As a consequence of testing multiple channels simultaneously, the concurrent testing method is used. A test
configuration includes at least a master test component for controlling co-ordination and D-channel activity and
eventually one or two PTCs for each involved B-channel. Each of the MTC and PTCs has got a Point of Control and
Observation (PCO). The remote test method as defined in ISO/IEC 9646-2 [12] is applied.
ETSI

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SIST EN 300 267-4 V1.2.4:2005
9 ETSI EN 300 267-4 V1.2.4 (2000-06)
5.2 Conventions for test components and PCOs
Figure 1 shows a logical view of the complete configuration of the MTC, PTCs, and PCOs. The Co-ordination Point
(CP) relationships between the various components are also indicated. The test method used is very close to the test
method used in I-ETS 300 763-2 [10].
TESTER
MTC
PTCs
CPDB1 CPDB2
MTCD PTCB1 PTCB2
IUT
PCOs
DL B1L B2L
D-channel B-channels
S/T bus
Figure 1: Multi-party test method
In a master/slave arrangement, the MTC is considered to be the master while the PTCs are the slaves.
There are communication paths or CPs between the MTC and each PTC (ie. CPDB1 and CPDB2). The MTC handles all
scheduling of test components and exchanges messages with PTCs to start or to s
...