SIST EN 300 359-2 V1.2.4:2005
(Main)Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification
General Information
- Abstract
Update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.
- Status
- Published
- Publication Date
- 31-Mar-2005
- 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
Overview
SIST EN 300 359-2 V1.2.4:2005 provides a standardized Protocol Implementation Conformance Statement (PICS) proforma for the Completion of Calls to Busy Subscriber (CCBS) supplementary service within the Integrated Services Digital Network (ISDN) using the Digital Subscriber Signalling System No. one (DSS1) protocol. This part is key to ensuring consistent and interoperable implementations of the CCBS service across European ISDN networks.
The document, maintained by the Slovenian Institute for Standardization (SIST), aligns national requirements with the European EN 300 359-2 standard. It is integral to systems needing conformance to CCBS supplementary services, as specified in EN 300 359-1, for ISDN telecommunications.
Key Topics
- ISDN and CCBS Supplementary Service: Focuses on supporting the feature that allows a calling party to request automatic completion of a call when the called number is busy, enhancing the efficiency and experience of digital telephony.
- DSS1 Protocol: Specifies usage at the user-network interface (T reference point or coincident S and T reference point) as defined in international standards, ensuring interoperability among ISDN equipment.
- PICS Proforma: Provides detailed templates and instructions for suppliers to declare which features and options are implemented in their ISDN product. This PICS proforma allows validation of protocol compliance.
- Conformance Requirements: Identifies and categorizes capabilities as mandatory, optional, or conditional, ensuring clarity for implementers and testers.
- Updated Normative References: Reflects updates to referenced standards, notably replacing earlier ETS 300 102-1 references with ETS 300 403, to maintain alignment with current baseline specifications.
Applications
Implementing the CCBS supplementary service according to this standard offers several practical benefits:
- Interoperability: Ensures consistent implementation of CCBS features across different ISDN equipment and network providers, essential for seamless digital communications.
- Efficiency in Telecommunications: CCBS allows users to request a callback when encountering busy signals, reducing user frustration and increasing network efficiency.
- Testing and Certification: The PICS proforma streamlines the process for vendors to declare protocol support, simplifying conformance testing and certification procedures.
- Procurement and Specification: Provides clear criteria for network operators and procurement professionals to demand and verify ISDN equipment compliance.
- Network Transition Support: The update to normative references ensures that implementations keep pace with current technology and regulatory expectations, supporting long-term operational reliability.
Related Standards
For a broader context or implementation, the following standards are closely associated with SIST EN 300 359-2 V1.2.4:2005:
- EN 300 359-1: Protocol specification for the DSS1 CCBS supplementary service.
- EN 300 403-1, -3: Baseline specifications and conformance statements for the DSS1 protocol and circuit-mode basic call control.
- EN 300 195-1, -2: Supplementary service interactions in ISDN using DSS1.
- EN 300 196-1, -2: Generic functional protocol for supplementary services and its PICS proforma.
- ISO/IEC 9646-1, 9646-7: International standards for conformance testing methodology and implementation conformance statements.
- ITU-T I.411: Reference configurations for ISDN user-network interfaces.
- CCITT I.130: Methods for characterizing ISDN telecommunication services.
Practical Value
Using SIST EN 300 359-2 V1.2.4:2005 helps ISDN solution providers, network operators, equipment vendors, and integrators to:
- Demonstrate rigorous adherence to European ISDN standards.
- Achieve easier certification processes through standardized conformance statements.
- Ensure end-users benefit from reliable, interoperable supplementary services like CCBS.
- Facilitate smooth project deployments and minimize post-deployment interoperability issues.
Keywords: ISDN, CCBS, DSS1 protocol, PICS proforma, completion of calls to busy subscriber, digital subscriber signalling, conformance, telecommunications standard, normative references, EN 300 359-2, ETSI, SIST.
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Frequently Asked Questions
SIST EN 300 359-2 V1.2.4:2005 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 2: Protocol Implementation Conformance Statement (PICS) proforma specification". This standard covers: Update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.
Update references from ETS 300 102-1 and associated I-ETSs to ETS 300 403.
SIST EN 300 359-2 V1.2.4:2005 is classified under the following ICS (International Classification for Standards) categories: 33.080 - Integrated Services Digital Network (ISDN). The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 300 359-2 V1.2.4:2005 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2005
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GRNRQþDQMHNOLFDQMD]DVHGHQHJDQDURþQLND&&%6±3URWRNROGLJLWDOQHQDURþQLãNH
VLJQDOL]DFLMHãW'66±GHO,]MDYDRVNODGQRVWLL]YHGEHSURWRNROD3,&6±
3URIRUPDVSHFLILNDFLMD
Integrated Services Digital Network (ISDN); Completion of Calls to Busy Subscriber
(CCBS) 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 300 359-2 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 300 359-2 V1.2.4 (1998-06)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Completion of Calls to Busy Subscriber (CCBS)
supplementary service;
Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 2: Protocol Implementation Conformance
Statement (PICS) proforma specification
2 EN 300 359-2 V1.2.4 (1998-06)
Reference
REN/SPS-05145-G-2 (3boi0iqo.PDF)
Keywords
ISDN, CCBS, 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 300 359-2 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 .14
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.17
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 300 359-2 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 300 359-2 .25
History.26
ETSI
5 EN 300 359-2 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) Completion of Calls to Busy
Subscriber (CCBS) 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 300 359-2 V1.2.4 (1998-06)
1 Scope
This second part of EN 300 359 is applicable to the stage three of the Completion of Calls to Busy Subscriber (CCBS)
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 [11]) 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 [10]).
The present document provides the Protocol Implementation Conformance Statement (PICS) proforma for the ISDN
DSS1 CCBS supplementary service protocol as specified in EN 300 359-1 [7] in compliance with the relevant
requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [9].
The supplier of a protocol implementation which is claimed to conform to EN 300 359-1 [7] 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 300 195-1: "Integrated Services Digital Network (ISDN); Supplementary service interactions;
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 300 196-1: "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] 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".
[6] 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".
[7] EN300 359-1 (V1.2): "Integrated Services Digital Network (ISDN); Completion of Calls to Busy
Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
ETSI
7 EN 300 359-2 V1.2.4 (1998-06)
[8] ISO/IEC 9646-1: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 1: General concepts".
[9] ISO/IEC 9646-7: "Information technology - Open systems interconnection - Conformance testing
methodology and framework - Part 7: Implementation Conformance Statements".
[10] CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[11] 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
ETS 300 359-1 [7]:
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 [8]).
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 [8]).
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 [8]).
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)
CCBS Completion of Calls to Busy Subscriber
DSS1 Digital Subscriber Signalling System No. one
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
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 Role
RL Requirements List
SC Subsidiary Capabilities
SCS System Conformance Statement
SS Supplementary Service
ETSI
8 EN 300 359-2 V1.2.4 (1998-06)
SUT System Under Test
TM Timers
Yes supported
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 300 359-1 [7];
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 300 359-2 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 [8] 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 300 359-2 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 [9].
The reference column contained in the tables gives reference to the appropriate part(s) of EN 300 359-1 [7] 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 300 359-1 [7] 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 [9], 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 [9], 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 300 359-2 V1.2.4 (1998-06)
A.2.3 Product supplier
Name:
.........................................................................................................................................................................................
Address:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
Telephone number:
.........................................................................................................................................................................................
Facsimile number:
.........................................................................................................................................................................................
Additional information:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
A.2.4 Client
Name:
.........................................................................................................................................................................................
Address:
.........................................................................................................................................................................................
.........................................................................................................................................................................................
.........................................................................................................................................................................................
Telephone number:
.........................................................................................................................................................................................
Facsimile number:
.........................................................................................................................................................................................
Additional information:
.....................................................................
...



