SIST EN 300 185-2 V1.2.4:2005

• Abstract:

  Update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.

• Status: Published
• Publication Date: 31-Mar-2005
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2005
• Due Date: 01-Apr-2005
• Completion Date: 01-Apr-2005
• Ref Project: ETSI EN 300 185-2 V1.2.4 (1998-06) - Integrated Services Digital Network (ISDN); Conference call, add-on (CONF) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification

SIST EN 300 185-2 V1.2.4:2005 is the Slovenian adoption of EN 300 185-2 V1.2.4 for the Integrated Services Digital Network (ISDN) Conference call, add-on (CONF) supplementary service. It specifies the Protocol Implementation Conformance Statement (PICS) proforma for the Digital Subscriber Signalling System No. one (DSS1) protocol, so a supplier can declare which CONF functions and options an implementation supports when claiming conformance to EN 300 185-1.

What does SIST EN 300 185-2 V1.2.4:2005 specify?

SIST EN 300 185-2 V1.2.4:2005 specifies the PICS proforma for the stage three definition of the CONF supplementary service in pan-European ISDN. It is written for implementations at the T reference point, or coincident S and T reference point, and it follows the conformance-testing approach of ISO/IEC 9646-7.

In practice, the document gives suppliers a structured questionnaire to complete. That questionnaire is used to state what the implementation supports, and it supports later conformance review against the protocol specification in EN 300 185-1.

The document is organized into:

• Clause 1 - Scope
• Clause 2 - Normative references
• Clause 3 - Definitions
• Clause 4 - Abbreviations
• Clause 5 - Conformance
• Annex A - PICS proforma
• Annex B - Requirements list
• Annex C - Changes with respect to the previous ETS 300 185-2

Annex	What it covers
Annex A	The PICS questionnaire and completion instructions
Annex B	Requirements copied from related PICS proformas that must be reflected in the base forms
Annex C	Changes compared with the previous ETS 300 185-2

What are the key requirements of SIST EN 300 185-2 V1.2.4:2005?

SIST EN 300 185-2 V1.2.4:2005 is mainly about how to complete a conformance statement correctly. Its key requirement is that a PICS claiming conformity must match annex A in content, numbering and order, and must identify both the supplier and the implementation.

• Clause 5 requires the PICS proforma to be technically equivalent to annex A and to preserve the numbering and ordering of its items. In practice, a supplier cannot rewrite the questionnaire in a different structure and still claim it is conformant.
• Clause 5 and annex A require the completed PICS to describe an implementation that claims conformance to EN 300 185-1. This matters because the PICS is a declaration tied to the actual protocol specification, not a standalone form.
• Annex A.1 requires identification of the Implementation Under Test (IUT), the System Under Test (SUT), the product supplier, the client and a contact person. In practice, this gives testers and buyers a way to link the declaration to a specific product and configuration.
• Annex A.1.2 uses a global statement of conformance. If the answer is Yes, the later tables can be used to select optional test cases; if the answer is No, the non-supported mandatory capabilities must be identified and explained. That makes the PICS useful both for test planning and for recording exceptions.
• Annex A.1.3 and table A.1 separate user and network implementations and make the Roles item mandatory for all implementations. In practice, the supplier must say whether the implementation behaves as a user, a network, or both, because the later requirements depend on that choice.
• Tables A.2 and A.6 set out the major CONF capabilities for user and network implementations, including invocation from idle state, adding a party, isolation, reattachment, splitting, disconnection and conference termination. For a reader, these are the main feature checkpoints that show how far the implementation supports conference control.
• Tables A.3 to A.9 focus on protocol data units, parameters, facility information element components and notification indicator codepoints. This is important because conformance is not only about features, but also about the exact messages and information elements exchanged on the wire.
• Annex B links this proforma to the related basic call, generic functional protocol and supplementary service interactions PICS proformas. In practice, it tells the supplier which related items must be reflected in those companion forms and how optional or conditional status carries over.

What terms does SIST EN 300 185-2 V1.2.4:2005 define?

SIST EN 300 185-2 V1.2.4:2005 defines the terms used to complete and interpret the PICS.

• Protocol Implementation Conformance Statement (PICS) - a statement from the supplier saying which capabilities of an OSI implementation are implemented for a given protocol.
• PICS proforma - a questionnaire form that becomes the PICS once it is completed for a specific implementation or system.
• static conformance review - a comparison between the completed PICS and the static conformance requirements in the relevant standard.
• Implementation Under Test (IUT) - the implementation being evaluated for conformance.
• System Under Test (SUT) - the system in which the IUT resides.
• System Conformance Statement (SCS) - a document that summarizes which standards are implemented and what conformance is claimed.
• CONF - the Conference call, add-on supplementary service.
• DSS1 - Digital Subscriber Signalling System No. one.

Who uses SIST EN 300 185-2 V1.2.4:2005?

SIST EN 300 185-2 V1.2.4:2005 is used by suppliers of ISDN DSS1 implementations, conformance test teams, and product teams that need to declare support for CONF. It is also useful to quality managers and buyers who want a structured statement of which conference-call capabilities, message elements and notification behaviors are supported.

The document is especially relevant where both user-side and network-side behavior must be declared. That includes public telecommunications operators, private ISDN implementations and labs that prepare or review conformance documentation.

What changed in SIST EN 300 185-2 V1.2.4:2005 from the previous edition?

SIST EN 300 185-2 V1.2.4:2005 is based on the previous ETS 300 185-2 and updates the references used for the basic call specifications. The changes stated in the document are:

• conversion to EN layout
• replacement of references to ETS 300 102 with EN 300 403
• replacement of references to I-ETSs with EN 300 403
• substitution of non-specific references to basic standards where the intention is to refer to the latest version

The foreword also says that this version updates the references to the basic call specifications.

Which standards are used with SIST EN 300 185-2 V1.2.4:2005?

Reference	What it contributes
EN 300 185-1	The CONF protocol specification that the PICS refers to
EN 300 403-1	The basic call control signalling network layer specification
EN 300 403-3	The basic call PICS proforma used in Annex B references
EN 300 195-2	The supplementary service interactions PICS proforma used in Annex B references
EN 300 196-2	The generic functional protocol PICS proforma used in Annex B references
ISO/IEC 9646-1	Conformance testing concepts, including PICS and static conformance review
ISO/IEC 9646-7	Guidance for Implementation Conformance Statements and tabular proformas
CCITT Recommendation I.130	The stage three method for characterizing telecommunication services
ITU-T Recommendation I.411	Reference configurations for ISDN user-network interfaces

What does the SIST EN 300 185-2 V1.2.4:2005 document contain?

SIST EN 300 185-2 V1.2.4:2005 contains a completed-form questionnaire structure, not a protocol description. Annex A gives the identification fields, the global conformance statement, and tables for roles, capabilities, protocol data units, parameters, timers and call states for both user and network implementations.

Annex A also includes the facility information element components and notification indicator codepoints that matter for CONF messaging. Annex B lists related requirements that feed into the base PICS proformas for basic call, generic functional protocol and supplementary service interactions.

For a practical user, the value of the document is that it turns protocol support into a checkable declaration. That helps with supplier statements, internal reviews, interoperability planning and conformance testing because the same items can be referenced consistently across the related PICS forms.

SLOVENSKI STANDARD
01-april-2005
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Integrated Services Digital Network (ISDN); Conference call, add-on (CONF)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
Ta slovenski standard je istoveten z: EN 300 185-2 Version 1.2.4
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 300 185-2 V1.2.4 (1998-06)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Conference call, add-on (CONF) supplementary service;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification

2 EN 300 185-2 V1.2.4 (1998-06)
Reference
REN/SPS-05145-J1-2 (1poi0iqo.PDF)
Keywords
ISDN, CONF, DSS1, supplementary service,
PICS
ETSI
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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.
ETSI
3 EN 300 185-2 V1.2.4 (1998-06)
Contents
Intellectual Property Rights.5
Foreword .5
1 Scope.6
2 Normative references .6
3 Definitions.7
4 Abbreviations.7
5 Conformance.8
Annex A (normative): PICS proforma.9
A.1 Instructions for completing the PICS proforma.9
A.1.1 Identification of the implementation . 9
A.1.2 Global statement of conformance . 9
A.1.3 Explanation of PICS proforma subclauses. 9
A.1.4 Symbols, abbreviations and terms. 10
A.2 Identification of the implementation.10
A.2.1 Implementation Under Test (IUT) identification . 10
A.2.2 System Under Test (SUT) identification. 10
A.2.3 Product supplier. 11
A.2.4 Client . 11
A.2.5 PICS contact person. 11
A.3 PICS/System Conformance Statement (SCS).12
A.4 Identification of the protocol .12
A.5 Global statement of conformance .12
A.6 Roles.13
A.7 User .13
A.7.1 Major capabilities . 14
A.7.2 Subsidiary capabilities . 14
A.7.3 Protocol data units . 14
A.7.4 Protocol data unit parameters. 15
A.7.5 Timers. 16
A.7.6 Call states. 16
A.8 Network.16
A.8.1 Major capabilities . 17
A.8.2 Subsidiary capabilities . 17
A.8.3 Protocol data units . 17
A.8.4 Protocol data unit parameters. 18
A.8.5 Timers. 20
A.8.6 Call states. 20
Annex B (normative): Requirements list.21
B.1 User .21
B.1.1 Requirements on items used in the basic call PICS . 21
B.1.2 Requirements on items used in the generic functional protocol PICS . 21
B.1.3 Requirements on items used in the supplementary service interactions PICS.22
B.2 Network.23
B.2.1 Requirements on items used in the basic call PICS . 23
B.2.2 Requirements on items used in the generic functional protocol PICS . 23
ETSI
4 EN 300 185-2 V1.2.4 (1998-06)
B.2.3 Requirements on items used in the supplementary service interactions PICS.24
Annex C (informative): Changes with respect to the previous ETS 300 185-2 .25
History.26
ETSI
5 EN 300 185-2 V1.2.4 (1998-06)
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 SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in respect
of ETSI standards", which is available free of charge from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (http://www.etsi.fr/ipr or 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 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 Signalling
Protocols and Switching (SPS).
The present document is part 2 of a multi-part standard covering the Digital Subscriber Signalling System No. one
(DSS1) protocol specification for the Integrated Services Digital Network (ISDN) Conference call, add-on (CONF)
supplementary service, 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".
To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and
options have been implemented for a given Open Systems Interconnection (OSI) protocol. Such a statement is called a
Protocol Implementation Conformance Statement (PICS).
The present version updates the references to the basic call specifications.
National transposition dates
Date of adoption of this EN: 19 June 1998
Date of latest announcement of this EN (doa): 30 September 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 March 1999
Date of withdrawal of any conflicting National Standard (dow): 31 March 1999
ETSI
6 EN 300 185-2 V1.2.4 (1998-06)
1 Scope
This second part of EN 300 185 is applicable to the stage three of the Conference call, add-on (CONF) supplementary
service 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 defined in
ITU-T Recommendation I.411 [9]) by means of the Digital Subscriber Signalling System No. one (DSS1) protocol.
Stage three identifies the protocol procedures and switching functions needed to support a telecommunications service
(see CCITT Recommendation I.130 [8]).
The present document provides the Protocol Implementation Conformance Statement (PICS) proforma for the ISDN
DSS1 CONF supplementary service protocol as specified in EN 300 185-1 [2] in compliance with the relevant
requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [7].
The supplier of a protocol implementation which is claimed to conform to EN 300 185-1 [2] is required to complete a
copy of the PICS proforma provided in annex A of the present document and is required to provide the information
necessary to identify both the supplier and the implementation.
2 Normative references
References may be made to:
a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in
which case, subsequent revisions to the referenced document do not apply; or
b) all versions up to and including the identified version (identified by "up to and including" before the version
identity); or
c) all versions subsequent to and including the identified version (identified by "onwards" following the version
identity); or
d) publications without mention of a specific version, in which case 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] EN 300 403-1: "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]".
[2] EN 300 185-1 (V1.2): "Integrated Services Digital Network (ISDN); Conference call add-on
(CONF) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[3] EN 300 195-2: "Integrated Services Digital Network (ISDN); Supplementary service interactions;
Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation
Conformance Statement (PICS) proforma specification".
[4] EN 300 196-2: "Integrated Services Digital Network (ISDN); Generic functional protocol for the
support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification".
[5] EN 300 403-3: "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".
[6] ISO/IEC 9646-1: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 1: General concepts".
[7] ISO/IEC 9646-7: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 7: Implementation Conformance Statements".
ETSI
7 EN 300 185-2 V1.2.4 (1998-06)
[8] CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[9] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
3 Definitions
For the purposes of the present document, the following definitions apply, in addition to those given in
EN 300 185-1 [2]:
Protocol Implementation Conformance Statement (PICS): A statement made by the supplier of an Open Systems
Interconnection (OSI) implementation or system, stating which capabilities have been implemented for a given OSI
protocol (see ISO/IEC 9646-1 [6]).
PICS proforma: A document, in the form of a questionnaire, designed by the protocol specifier or conformance test
suite specifier, which, when completed for an OSI implementation or system, becomes the PICS (see
ISO/IEC 9646-1 [6]).
static conformance review: A review of the extent to which the static conformance requirements are met by the IUT,
accomplished by comparing the PICS with the static conformance requirements expressed in the relevant standard(s)
(see ISO/IEC 9646-1 [6]).
4 Abbreviations
For the purposes of the present document, the following abbreviations apply:
AND Boolean "and"
C Conditional requirement (to be observed if the relevant conditions apply)
CONF Conference call, add-on
DSS1 Digital Subscriber Signalling System No. one
IER Information Elements Received
IET Information Elements Transmitted
ISDN Integrated Services Digital Network
IUT Implementation Under Test
M Mandatory requirement (to be observed in all cases)
MC Major Capabilities
MR Messages Received
MT Messages Transmitted
N/A Not applicable, not supported or the conditions for status are not met
No not supported
NOT Boolean "not"
O Option (may be selected to suit the implementation, provided that any requirements applicable to
the option are observed)
O.n Options, but support required for either at least one or only one of the options in the group labelled
with the same numeral "n"
OR Boolean "or"
OSI Open Systems Interconnection
P Parameters
PICS Protocol Implementation Conformance Statement
R Roles
RL Requirements List
SCS System Conformance Statement
SS Supplementary Service
SUT System Under Test
Yes supported
ETSI
8 EN 300 185-2 V1.2.4 (1998-06)
5 Conformance
A PICS proforma which conforms to this PICS proforma specification shall be technically equivalent to annex A, and
shall preserve the numbering and ordering of the items in annex A.
A PICS which conforms to this PICS proforma specification shall:
a) describe an implementation which claims to conform to EN 300 185-1 [2];
b) be a conforming ICS proforma which has been completed in accordance with the instructions for completion
given in clause A.1;
c) include the information necessary to uniquely identify both the supplier and the implementation.
ETSI
9 EN 300 185-2 V1.2.4 (1998-06)
Annex A (normative):
PICS proforma
Notwithstanding the provisions of the copyright clause related to the text of the present document, ETSI grants that users
of the present document may freely reproduce the PICS proforma in this annex so that it can be used for its intended
purposes and may further publish the completed PICS.
A.1 Instructions for completing the PICS proforma
A.1.1 Identification of the implementation
Identification of the Implementation Under Test (IUT) and the system in which it resides (the System Under Test
(SUT)) should be filled in so as to provide as much detail as possible regarding version numbers and configuration
options.
The product supplier information and client information should both be filled in if they are different.
A person who can answer queries regarding information supplied in the PICS should be named as the contact person.
The SCS as defined in ISO/IEC 9646-1 [6] is a document supplied by the client or product supplier that summarizes
which OSI International Standards, ITU-T (CCITT) Recommendations, ETSs or other standards are implemented and to
which conformance is claimed. The PICS/SCS subclause should describe the relationship of the PICS to the SCS.
A.1.2 Global statement of conformance
If the answer to the statement in this subclause is "Yes", all subsequent subclauses should be completed to facilitate
selection of test cases for optional functions.
If the answer to the statement in this subclause is "No", all subsequent subclauses should be completed, and all non-
supported mandatory capabilities should be identified and explained. Explanations may be entered in the comments field
at the bottom of each table or on attached sheets of paper.
A.1.3 Explanation of PICS proforma subclauses
The PICS proforma contains a Roles clause and thereafter is presented in two parts (for user and network) with the
following subclauses, as required:
- major capabilities;
- subsidiary capabilities;
- protocol data unit support;
- protocol data unit parameters;
- timers;
- call states.
The User clause shall only be completed for user implementations (including private network implementations) while
the Network clause shall only be completed for network implementations. The Roles subclause shall be completed for
all implementations.
The relationship between this PICS proforma and other related PICS proforma (e.g. the basic call PICS proforma) is
expressed in the Requirements List (RL) contained in annex B. This provides the additional restrictions placed on the
related proforma (different conditions, different status, etc.).
ETSI
10 EN 300 185-2 V1.2.4 (1998-06)
A.1.4 Symbols, abbreviations and terms
The PICS proforma contained in this annex is comprised of information in tabular form in accordance with the
guidelines presented in ISO/IEC 9646-7 [7].
The reference column contained in the tables gives reference to the appropriate part(s) of EN 300 185-1 [2] describing
the particular item. Note, however, that a reference merely indicates the place where the core of a description of an item
can be found. Any additional information contained in EN 300 185-1 [2] has to be taken into account when making a
statement about the conformance of that particular item.
The following common notations, defined in ISO/IEC 9646-7 [7], are used for the status column:
M mandatory
O optional
N/A not applicable
O. for mutually exclusive or selectable options from a set
The following common notations, defined in ISO/IEC 9646-7 [7], are used for the support column:
Y for supported/implemented
N for not supported/not implemented
A.2 Identification of the implementation
A.2.1 Implementation Under Test (IUT) identification
IUT name:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
IUT version:
.........................................................................................................................................................................................
A.2.2 System Under Test (SUT) identification
SUT name:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
Hardware configuration:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
Operating system:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
ETSI
11 EN 300 185-2 V1.2.4 (1998-06)
A.2.3 Product supplier
Name:
.........................................................................................................................................................................................
Address:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
Telephone number:
.........................................................................................................................................................................................
Facsimile number:
.........................................................................................................................................................................................
Additional information:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
A.2.4 Client
Name:
.........................................................................................................................................................................................
Address:
.........................................................................................................................................................................................
.......................
...