SIST-TS TS 101 342 V1.1.1:2004

• Abstract:

  PICS proforma for H.450.3 Supplementary Services

• Status: Published
• Publication Date: 31-Mar-2004
• ICS: 33.020 - Telecommunications in general
• Technical Committee: SPN - Services and Protocols for Networks
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Apr-2004
• Due Date: 01-Apr-2004
• Completion Date: 01-Apr-2004
• Ref Project: ETSI TS 101 342 V1.1.1 (1999-09) - Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON); Protocol Implementation Conformance Statement (PICS) proforma for the support of supplementary services in H.323; Support of H.450.3: Call diversion supplementary services for H.323

SIST-TS TS 101 342 V1.1.1:2004 is the Slovenian version of ETSI TS 101 342 V1.1.1, published by SIST. It is a Protocol Implementation Conformance Statement (PICS) proforma for H.323 supplementary services, specifically ITU-T Recommendation H.450.3 call diversion. Suppliers use it to state which roles, capabilities, protocol messages, parameters and timers their implementation supports.

What does SIST-TS TS 101 342 V1.1.1:2004 specify?

SIST-TS TS 101 342 V1.1.1:2004 specifies the PICS proforma for the call diversion supplementary service in H.323, as defined by ITU-T Recommendation H.450.3, and follows the guidance of ISO/IEC 9646-7. In practice, it gives a standard questionnaire that a supplier completes to describe conformance.

Clause 1 sets the scope, clause 2 lists the references, clause 3 defines the terms and abbreviations used, and clause 4 sets the conformance rule for the proforma. Annex A contains the normative PICS proforma and its completion guidance.

Annex A is structured as follows:

Annex	What it covers
A	Guidance for completing the PICS proforma, identification of the implementation, protocol identification, global conformance statement, roles, major capabilities, subsidiary capabilities, protocol data units, protocol data unit parameters, and timers

What are the key requirements of SIST-TS TS 101 342 V1.1.1:2004?

Completion and conformance

SIST-TS TS 101 342 V1.1.1:2004 requires a supplier claiming conformance to complete the annex A PICS and provide enough information to identify both the supplier and the implementation. Clause 4 also requires the completed proforma to stay technically equivalent to annex A and to keep the same numbering, naming and order of items. That matters because a conformance statement is only comparable if everyone answers the same questions in the same structure.

The global conformance question asks whether all mandatory capabilities are implemented. If the answer is No, the resulting PICS is non-conforming and the missing mandatory capabilities must be identified with an explanation.

Roles and capabilities

Annex A classifies the implementation by role and capability. The roles table covers client/terminal, gatekeeper, gateway, MCU, originating endpoint, served endpoint, rerouting endpoint, diverted-to endpoint, activating endpoint, deactivating endpoint and interrogating endpoint. For a product team, this is the first practical filter: it shows whether the implementation behaves as an endpoint, network element, or both.

The major capabilities table groups the call diversion functions into call forwarding unconditional (CFU), call forwarding busy (CFB), call forwarding no reply (CFNR), call deflection (CD), and the actions of the different endpoint and GK roles. This lets a reader see which diversion behaviors are claimed, not just whether the product supports H.450.3 in general.

Procedures, messages and data

Annex A also asks about the procedures behind the service, such as local and remote activation/deactivation, local and remote interrogation, user notifications, and whether a served endpoint verifies the diverted-to endpoint number. These details matter when testing user-facing behavior and network interactions.

The protocol data unit tables map the service operations to APDUs, including activateDiversionQ, deactivateDiversionQ, interrogateDiversionQ, checkRestriction, callRerouting and the diverting leg information APDUs. The PDU parameter table then records which optional information elements are supported, such as callingInfo, originalCalledNr, redirectingInfo, nominatedInfo and related fields. In practice, this is what test labs use to check message-level interoperability.

Timers and limits

The timers table records the timers associated with the service, including T1, T2, T3, T4 and T5. Annex A also includes items for the CF diversion counter and support for multiple call diversion, including the maximum number of diversions allowed. These are the fields that show how the implementation behaves under repeated diversion and timeout conditions.

What terms does SIST-TS TS 101 342 V1.1.1:2004 define?

• Implementation Conformance Statement (ICS): a supplier statement that says which capabilities are implemented for a claimed specification.
• Protocol Implementation Conformance Statement (PICS): an ICS for an implementation or system claimed to conform to a protocol specification.
• ICS proforma: the questionnaire form that becomes a PICS when the supplier completes it.
• Implementation Under Test (IUT): the implementation whose conformance is being described.
• System Under Test (SUT): the system in which the IUT resides.
• PDU: Protocol Data Unit, the protocol message unit named in the service tables.
• APDU: Application Protocol Data Unit, the service-level message unit used in the call diversion operations.

Who uses SIST-TS TS 101 342 V1.1.1:2004?

Suppliers of H.323 and H.450.3 implementations use this document to prepare a standardized conformance statement. That includes vendors of endpoints, gatekeepers, gateways and MCU products.

Test laboratories, quality teams and buyers use the completed PICS to compare products and check which call diversion roles, procedures, APDUs, parameters and timers are supported. It is most relevant in telecommunications and IP voice environments where supplementary services must interoperate across H.323 networks.

What changed in SIST-TS TS 101 342 V1.1.1:2004 from the previous edition?

SIST-TS TS 101 342 V1.1.1:2004 is identical to TS 101 342 Version 1.1.1 / ETSI TS 101 342 V1.1.1 (1999-09).

Which standards are used with SIST-TS TS 101 342 V1.1.1:2004?

• ITU-T Recommendation H.450.3 - defines the call diversion supplementary service for H.323 that this PICS covers.
• ITU-T Recommendation H.323 - provides the packet-based multimedia communications framework used by the service.
• ITU-T Recommendation H.225.0 - provides the call signalling and media stream packetization context used in the PDU tables.
• ISO/IEC 9646-1 - provides the conformance testing concepts used for ICS terminology.
• ISO/IEC 9646-7 - provides the PICS methodology and the table conventions used in the annex.
• ITU-T Implementers Guide for the H.323, H.225.0, H.245, H.246, H.235 and H.450 Series Recommendations - supplies implementation guidance referenced in the tables.

What does the SIST-TS TS 101 342 V1.1.1:2004 document contain?

SIST-TS TS 101 342 V1.1.1:2004 is mainly a tabular conformance form, not a narrative technical specification. Annex A contains the completion guidance and the full questionnaire for implementation identification, protocol identification, conformance declaration, roles, capabilities, APDUs, APDU parameters and timers.

The tables use status marks such as mandatory, optional, conditional, prohibited and not applicable, plus support answers entered by the supplier. They also include conditional expressions and notes that define how to answer for different profiles or role combinations. For testing and certification, that structure makes it possible to check exactly what a product claims to support and how it behaves in the call diversion procedures.

SLOVENSKI STANDARD
01-april-2004
Harmonizacija telekomunikacij in internetnega protokola prek omrežij (TIPHON) -
Proforma izjava o skladnosti izvedbe protokola (PICS) za podporo dopolnilnih
storitev v H.323 - Podpora H.450.3 - Dopolnilna storitev za H.323: izsmeritev klica
Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON);
Protocol Implementation Conformance Statement (PICS) proforma for the support of
supplementary services in H.323; Support of H.450.3: Call diversion supplementary
services for H.323
Ta slovenski standard je istoveten z: TS 101 342 Version 1.1.1
ICS:
33.020 Telekomunikacije na splošno Telecommunications in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

Technical Specification
Telecommunications and Internet Protocol
Harmonization Over Networks (TIPHON);
Protocol Implementation Conformance
Statement (PICS) proforma for the support
of supplementary services in H.323;
Support of H.450.3: Call diversion
supplementary services for H.323

2 ETSI TS 101 342 V1.1.1 (1999-09)
Reference
DTS/TIPHON-06009 (cfc00icr.PDF)
Keywords
Voice, IP, supplementary services, ICS, 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 1999.
All rights reserved.
ETSI
3 ETSI TS 101 342 V1.1.1 (1999-09)
Contents
Intellectual Property Rights.4
Foreword .4
Introduction .4
1 Scope.5
2 References.5
3 Definitions and abbreviations .5
3.1 Definitions . 5
3.2 Abbreviations. 6
4 Conformance to this PICS proforma specification .6
Annex A (normative): PICS proforma for ITU-T Recommendation H.450.3 .7
A.1 Guidance for completing the PICS proforma.7
A.1.1 Purposes and structure . 7
A.1.2 Abbreviations and conventions. 7
A.1.3 Instructions for completing the PICS proforma . 9
A.2 Identification of the implementation.10
A.2.1 Date of the statement. 10
A.2.2 Implementation Under Test (IUT) identification . 10
A.2.3 System Under Test (SUT) identification. 10
A.2.4 Product supplier. 11
A.2.5 Client (if different from product supplier) . 11
A.2.6 PICS contact person. 12
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 Capabilities.13
A.7.1 Major capabilities . 13
A.7.2 Subsidiary capabilities . 14
A.7.3 Protocol data units . 15
A.7.4 Protocol data unit parameters. 16
A.7.5 Timers. 17
History.18
ETSI
4 ETSI TS 101 342 V1.1.1 (1999-09)
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 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 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 Technical Specification (TS) has been produced by ETSI Project Telecommunications and Internet Protocol
Harmonization Over Networks (TIPHON).
Introduction
To evaluate conformance of a particular implementation, it is necessary to have a statement of which capabilities and
options have been implemented for a telecommunication specification. Such a statement is called an Implementation
Conformance Statement (ICS).
ETSI
5 ETSI TS 101 342 V1.1.1 (1999-09)
1 Scope
The present document provides the Protocol Implementation Conformance Statement (PICS) proforma for the Call
diversion supplementary service in H.323 [2] as specified in ITU-T Recommendation H.450.3 [1] in compliance with
the relevant requirements and in accordance with the relevant guidance given in ISO/IEC 9646-7 [5].
The supplier of a protocol implementation which is claimed to conform to ITU-T Recommendation H.450.3 [1] 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 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] ITU-T Recommendation H.450.3: "Call diversion supplementary service for H.323".
[2] ITU-T Recommendation H.323: "Packet based multimedia communications systems".
[3] ITU-T Recommendation H.225.0: "Call signalling protocols and media stream packetization for
packet-based multimedia communication systems".
[4] ISO/IEC 9646-1 (1994): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 1: General concepts".
[5] ISO/IEC 9646-7 (1995): "Information technology - Open Systems Interconnection - Conformance
testing methodology and framework - Part 7: Implementation Conformance Statements".
[6] ITU-T "Implementers Guide for the ITU-T H.323, H.225.0, H.245, H.246, H.235 and H.450
Series Recommendations - Packet-Based Multimedia Communication Systems", maintained by
ITU-T SG16.
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
- terms defined in ITU-T Recommendation H.323 [2];
- terms defined in ITU-T Recommendation H.450.3 [1];
- terms defined in ISO/IEC 9646-1 [4] and in ISO/IEC 9646-7 [5].
ETSI
6 ETSI TS 101 342 V1.1.1 (1999-09)
In particular, the following terms defined in ISO/IEC 9646-1 [4] apply:
Implementation Conformance Statement (ICS): statement made by the supplier of an implementation or system
claimed to conform to a given specification, stating which capabilities have been implemented. The PICS can take
several forms: protocol PICS, profile PICS, profile specific PICS, information object PICS, etc
ICS proforma: document, in the form of a questionnaire, which when completed for an implementation or system
becomes an PICS
Protocol ICS (PICS): ICS for an implementation or system claimed to conform to a given protocol specification
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
APDU Application Protocol Data Unit
CD Call Deflection
CF Call Forwarding
CFB Call Forwarding Busy
CFNR Call Forward No Reply
CFU Call Forward Unconditional
GK Gatekeeper
ICS Implementation Conformance Statement
IUT Implementation Under Test
MCU Multipoint Control Unit
PDU Protocol Data Unit
PICS Protocol Implementation Conformance Statement
SCS System Conformance Statement
SUT System Under Test
4 Conformance to this PICS proforma specification
If it claims to conform to the present document, the actual PICS proforma to be filled in by a supplier shall be
technically equivalent to the text of the PICS proforma given in annex A, and shall preserve the numbering/naming and
ordering of the proforma items.
A PICS which conforms to the present document shall be a conforming PICS proforma completed in accordance with
the guidance for completion given in clause A.1.
ETSI
7 ETSI TS 101 342 V1.1.1 (1999-09)
Annex A (normative):
PICS proforma for ITU-T Recommendation H.450.3
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 Guidance for completing the PICS proforma
A.1.1 Purposes and structure
The purpose of this PICS proforma is to provide a mechanism whereby a supplier of an implementation of the
requirements defined in ITU-T Recommendation H.450.3 [1] may provide information about the implementation in a
standardized manner.
The PICS proforma is subdivided into subclauses for the following categories of information:
- guidance for completing the PICS proforma;
- identification of the implementation;
- identification of the protocol;
- global statement of conformance;
-roles;
- major capabilities;
- subsidiary capabilities;
- operations;
- arguments, results and errors;
- timers.
A.1.2 Abbreviations and conventions
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 [5].
Item column
The item column contains a number which identifies the item in the table.
Item description column
The item description column describes in free text each respective item (for example parameters, timers, etc.). It
implicitly means "is < item description > supported by the implementation?".
ETSI
8 ETSI TS 101 342 V1.1.1 (1999-09)
Status column
The following notations, defined in ISO/IEC 9646-7 [5], are used for the status column:
m mandatory - the capability is required to be supported.
o optional - the capability may be supported or not.
n/a not applicable - in the given context, it is impossible to use the capability.
x prohibited (excluded) - there is a requirement not to use this capability in the given context.
o.i qualified optional - for mutually exclusive or selectable options from a set. "i" is an integer which
identifies a unique group of related optional items and the logic of their selection which is defined
immediately following the table.
ci conditional - the requirement on the capability ("m", "o", "x" or "n/a") depends on the support of
other optional or conditional items. "i" is an integer identifying a unique conditional status
expression which is defined immediately following the table.
i irrelevant (out-of-scope) - capability outside the scope of the reference specification. No answer is
requested from the supplier.
Reference column
The reference column makes reference to ITU-T Recommendation H.450.3 [1], except where explicitly stated
otherwise.
Support column
The support column shall be filled in by the supplier of the implementation. The following common notations, defined in
ISO/IEC 9646-7 [5], are used for the support column:
Y or y supported by the implementation;
N or n not supported by the implementation;
N/A, n/a or - no answer required (allowed only if the status is n/a, directly or after evaluation of a conditional
status).
If this PICS proforma is completed in order to describe a multiple-profile support in a system, it is necessary to be able
to answer that a capability is supported for one profile and not supported for another. In that case, the supplier shall
enter the unique reference to a conditional expression, preceded by "?" (for example ?3). This expression shall be given
in the space for comments provided at the bottom of the table. It uses predicates defined in the SCS, each of which refers
to a single profile and which takes the value TRUE if and only if that profile is to be used.
EXAMPLE: ?3: IF prof1 THEN Y ELSE N
It is also possible to provide a comment to an answer in the space provided at the bottom of the table.
NOTE: As stated in ISO/IEC 9646-7 [5], support for a received PDU requires the ability to parse all valid
parameters of that PDU. Supporting a PDU while having no ability to parse a valid parameter is
non-conformant. Support for a parameter on a PDU means that the semantics of that parameter are
supported.
ETSI
9 ETSI TS 101 342 V1.1.1 (1999-09)
Values allowed column
The values allowed column contains the type, the list, the range, or the length of values allowed. The following notations
are used:
- range of values: < min value > . < max value >;
- example: 5 . 20.
- List of values: < value1 >, < value2 >, ., < valueN >;
- example: 2, 4, 6, 8, 9;
- example: '1101'B, '1011'B, '1111'B;
- example: '0A'H, '34'H, '2F'H.
- List of named values: < name1 >(< val1 >), < name2 >(< val2 >), ., < nameN >(< valN >;
- example: reject(1), accept(2).
- Length: size (< min size > . < max size >);
-
...