SIST EN 300 089 V3.1.1:2005

• Abstract:

  This deliverable specifies the enhancements of the CLIP service description to handle the new CLI indicator presentation restricted by network for support of e.g. Anonymous Call Rejection (ACR). This is the third version of 300 089.

• Status: Published
• Publication Date: 31-Dec-2004
• 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-Jan-2005
• Due Date: 01-Jan-2005
• Completion Date: 01-Jan-2005
• Ref Project: ETSI EN 300 089 V3.1.1 (2000-12) - Integrated Services Digital Network (ISDN); Calling Line Identification Presentation (CLIP) supplementary service; Service description

SIST EN 300 089 V3.1.1:2005 is the Slovenian adoption of ETSI EN 300 089 V3.1.1 for the Integrated Services Digital Network (ISDN) Calling Line Identification Presentation (CLIP) supplementary service. It gives the stage 1 service description from the user's point of view, including how calling line identity is presented on public ISDNs, how private ISDNs interwork, and how network-restricted presentation is handled for cases such as Anonymous Call Rejection (ACR).

What does SIST EN 300 089 V3.1.1:2005 specify?

SIST EN 300 089 V3.1.1:2005 specifies the CLIP service description for pan-European ISDN as provided by European public telecommunications operators. It also covers interworking with private ISDNs and the base functionality when the service is offered through a private ISDN.

The document is organized into scope, references, definitions and abbreviations, description, procedures, intercommunication considerations, and interaction with other supplementary services, followed by three annexes. It is a stage 1 service description, so it defines the user-facing behavior and supports the corresponding stage 2 and stage 3 documents for implementation.

Annex	What it covers
Annex A, normative	Two calling party number delivery option
Annex B, informative	Terminal interchangeability between public and private ISDNs
Annex C, informative	Extended screening option

What are the key requirements of SIST EN 300 089 V3.1.1:2005?

Service scope and delivery

Clause 4 states that CLIP applies to basic access and primary rate access, and that it gives the called party the calling line identity. The identity may include a subaddress generated by the calling user and transported transparently by the network.

In practice, this means the network must present caller identity during call establishment even if the terminal cannot process it. The network is not responsible for the content of the subaddress, so operators and users need to treat that part as user-generated information.

Provision, activation and registration

Clause 5.1 says CLIP may be provided by prior arrangement or made generally available, and that it may be withdrawn at the customer's request or for administrative reasons. Clause 5.2.1 says the service is activated and deactivated by the service provider and needs no registration.

For a buyer or operator, this means CLIP is managed as a network service rather than a user-registered feature. Service control sits with the provider, which simplifies deployment and withdrawal.

Number handling and screening

Clause 5.2.3.1 defines how the calling line identity is built when the calling user supplies a number. The public ISDN screens the number unless a special arrangement applies, and a successful check leads to a national ISDN number marked as user provided, verified and passed.

This matters because the operator must decide whether the user number is acceptable, complete it where needed, or replace it with a default network-provided number. The same clause also says that international calls need the country code added when the call crosses an international boundary.

Restricted presentation and unavailable identity

Clause 5.3.3 says that when CLIR restricts presentation, the called user receives an indication that the calling line identity is not available because of restriction. The same treatment applies when the network-provided default number is also marked as presentation restricted by network.

In practice, this is the part that supports privacy and also avoids unwanted rejection by ACR. It tells implementers which presentation message to show when identity must not be revealed.

Interworking with non-ISDN and private ISDNs

Clauses 6.1 and 6.2 cover interworking. The document allows national rules to decide whether CLIP applies when one party is not an ISDN subscriber, and it requires a private ISDN to screen its own user-provided information before sending an E.164 national or international number to the public ISDN.

This means private networks need their own screening and numbering discipline before handing calls to the public network. Where no number is supplied, or screening fails, the public ISDN uses a default number marked as network provided.

Interaction with related supplementary services

Clause 7.5 says CLIR normally takes precedence over CLIP, but CLIP can override CLIR when the called user has an override category, which is a national matter. Clauses 7.10, 7.13 and 7.14 cover forwarded calls, Multiple Subscriber Number (MSN) behavior, and subaddressing.

For day-to-day operation, this means forwarded or deflected calls should still show the original calling number when CLIR is not active. If MSN applies, the calling party may supply MSN digits or a full ISDN number, and the called user can also receive the calling party subaddress if it was provided.

Optional network behavior in the annexes

Annex A defines an optional two-number delivery behavior, where a public ISDN can present both the network-provided number and the user-provided unscreened number. Annex C defines an extended screening option that can preserve the original calling line identity across different network entry points.

For operators, these annexes describe optional ways to improve caller identity handling without changing the base CLIP service. Annex C is especially relevant where calls from private ISDNs use far end breakout or least cost routing.

What terms does SIST EN 300 089 V3.1.1:2005 define?

• Calling Line Identification Presentation (CLIP) - the supplementary service that lets the called party receive the calling party's identity.
• Calling Line Identification Restriction (CLIR) - the supplementary service that limits presentation of the calling line identity.
• ISDN number - a number that follows the numbering plan and structure of ITU-T Recommendation E.164.
• partial number - part of an ISDN number that helps distinguish addressable entities beyond the network boundary.
• subaddress - additional addressing information defined in E.164 and transported with the call.
• screening - the network process that checks whether user-provided information is acceptable.
• special arrangement - an agreement under which the public ISDN does not screen customer-supplied calling party ISDN numbers.

Who uses SIST EN 300 089 V3.1.1:2005?

SIST EN 300 089 V3.1.1:2005 is used by public telecommunications operators, ISDN service providers, and engineers who design or maintain CLIP behavior. It is also relevant to private ISDN operators who need their networks to interwork cleanly with the public ISDN.

Quality and interoperability teams use it to check caller identity presentation, screening behavior, handling of restricted numbers, and the effect of related services such as CLIR, forwarded calls, MSN, and ACR. Terminal and network vendors use it as the service-level reference before they implement the stage 3 signaling and switching behavior.

What changed in SIST EN 300 089 V3.1.1:2005 from the previous edition?

SIST EN 300 089 V3.1.1:2005 is the third version of 300 089. The foreword says this version reflects enhancements to support the CLI APRI value "presentation restricted by network".

The foreword also adds informative Annex C on extended screening options. That annex is described as consistent with edition 1 and interoperable with existing CLIP implementations.

Which standards are used with SIST EN 300 089 V3.1.1:2005?

SIST EN 300 089 V3.1.1:2005 relies on the following referenced standards and related documents:

Reference	What it contributes
CCITT Recommendation I.130	The three-stage method for describing telecommunication services
ITU-T Recommendation I.112	ISDN vocabulary
ITU-T Recommendation E.164	International numbering plan, national/international numbers, and subaddress structure
ITU-T Recommendation I.210	Principles of telecommunication services supported by ISDN
ETSI ETS 300 062	Direct Dialling In (DDI), relevant to partial number handling
ETSI ETS 300 050	Multiple Subscriber Number (MSN), relevant to numbering on access interfaces
CCITT Recommendation Q.9	Switching and signalling vocabulary, including access types
ETSI EN 300 090	CLIR service description
ETSI ETS 300 091	Functional capabilities and information flows for CLIP and CLIR
ETSI ETS 300 092	Digital Subscriber Signalling System No. one (DSS1) protocol for CLIP
ECMA-155	Addressing for private integrated services networks
ETSI EN 301 798	ACR service description

What does the SIST EN 300 089 V3.1.1:2005 document contain?

The document contains the stage 1 service description, the definitions and abbreviations used to describe CLIP, and the procedures for provision, activation, invocation, exceptional handling, and interworking. It also sets out how CLIP interacts with CLIR and several other supplementary services.

Its annexes add optional delivery and screening behaviors for public ISDNs, while the main text keeps the base service description focused on ordinary call setup and identity presentation. The result is a practical reference for service definition, network design, and interoperability checks across public and private ISDN environments.

SLOVENSKI STANDARD
01-januar-2005
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LGHQWLWHWHUD]SR]QDYQRVWLNOLþRþHJDSULNOMXþND&/,3±2SLVVWRULWYH
Integrated Services Digital Network (ISDN); Calling Line Identification Presentation
(CLIP) supplementary service; Service description
Ta slovenski standard je istoveten z: EN 300 089 Version 3.1.1
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.

European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Calling Line Identification Presentation (CLIP)
supplementary service;
Service description
2 ETSI EN 300 089 V3.1.1 (2000-12)
Reference
REN/SPAN-020099
Keywords
ISDN, supplementary service, CLIP, stage 1
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ETSI
3 ETSI EN 300 089 V3.1.1 (2000-12)
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. 8
4 Description.8
5 Procedures.8
5.1 Provision and withdrawal . 8
5.2 Normal procedures . 8
5.2.1 Activation, deactivation and registration. 8
5.2.2 Erasure . 8
5.2.3 Invocation and operation . 9
5.2.3.1 Calling user side. 9
5.2.3.2 Called user side . 9
5.2.4 Interrogation . 10
5.3 Exceptional procedures. 10
5.3.1 Activation, deactivation and registration. 10
5.3.2 Erasure . 10
5.3.3 Invocation and operation . 10
5.3.4 Interrogation . 10
6 Intercommunication considerations.10
6.1 Interworking with non-ISDNs. 10
6.2 Interworking with private ISDNs . 11
7 Interaction with other supplementary services .11
7.1 Advice of charge services . 11
7.1.1 Charging information at call set-up time. 11
7.1.2 Charging information during the call . 11
7.1.3 Charging information at the end of the call . 11
7.2 Call waiting. 11
7.3 Call hold . 11
7.4 Call transfer . 11
7.4.1 Explicit call transfer. 11
7.4.2 Single step call transfer . 11
7.5 Number identification services. 12
7.5.1 Calling line identification presentation. 12
7.5.2 Calling line identification restriction. 12
7.5.3 Connected line identification presentation . 12
7.5.4 Connected line identification restriction. 12
7.6 Closed user group. 12
7.7 Completion of calls to busy subscriber. 12
7.8 Conference services. 12
7.8.1 Conference call, add-on. 12
7.8.2 Meet me conference. 12
7.9 Direct dialling in . 12
7.10 Diversion services . 13
7.10.1 Call forwarding unconditional. 13
7.10.2 Call forwarding busy. 13
7.10.3 Call forwarding no reply . 13
7.10.4 Call deflection. 13
7.11 Freephone . 13
ETSI
4 ETSI EN 300 089 V3.1.1 (2000-12)
7.12 Malicious call identification. 13
7.13 Multiple subscriber number . 13
7.14 Subaddressing . 13
7.15 Terminal portability. 14
7.16 Three party. 14
7.17 User-user signalling. 14
Annex A (normative): Two calling party number delivery option.15
A.1 Scope.15
A.2 Description.15
Annex B (informative): Terminal interchangeability between public and private ISDNs .16
Annex C (informative): Extended screening option.17
C.1 Scope.17
C.2 Description.17
History .19
ETSI
5 ETSI EN 300 089 V3.1.1 (2000-12)
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).
In accordance with CCITT Recommendation I.130 [1], the following three level structure is used to describe the
supplementary telecommunications services as provided by European public telecommunications operators under the
pan-European Integrated Services Digital Network (ISDN):
- Stage 1: is an overall service description, from the user's standpoint;
- Stage 2: identifies the functional capabilities and information flows needed to support the service described in
stage 1; and
- Stage 3: defines the signalling system protocols and switching functions needed to implement the service
described in stage 1.
The present document details the stage 1 aspects (overall service description) for the Calling Line Identification
Presentation (CLIP) supplementary service. The stage 2 and stage 3 aspects are detailed in ETS 300 091 [9] and
ETS 300 092 [10], respectively.
Addition of a new informative annex C, describing the incorporation of extended screening options. These additions
describe a method of operation of the screening function that is entirely consistent with the requirements of edition 1,
and therefore is entirely interoperable with existing implementations of the CLIP supplementary service.
This version 3 reflects the enhancements to the CLIP service description made to support the new CLI APRI value
"presentation restricted by network".
National transposition dates
Date of adoption of this EN: 1 December 2000
Date of latest announcement of this EN (doa): 31 March 2001
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2001
Date of withdrawal of any conflicting National Standard (dow): 30 September 2001
ETSI
6 ETSI EN 300 089 V3.1.1 (2000-12)
1 Scope
The present document defines the stage one of the Calling Line Identification Presentation (CLIP) supplementary
service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public
telecommunications operators. Stage one is an overall service description from the user's point of view (see
CCITT Recommendation I.130 [1]), but does not deal with the details of the human interface itself.
The present document defines the interworking requirements of private ISDNs with the public ISDN.
In addition the present document specifies the base functionality where the service is provided to the user via a private
ISDN.
The present document does not specify the additional requirements where the service is provided to the user via a
telecommunications network that is not an ISDN but does include interworking requirements of other networks with the
public ISDN.
Interactions with supplementary services not listed in clause 8 are outside the scope of the present document.
Charging principles are outside the scope of the present document.
The CLIP supplementary service provides the called party with the possibility of receiving identification of the calling
party.
The CLIP supplementary service is applicable to all telecommunications services.
The present document is applicable to the stage two and stage three standards for the ISDN CLIP supplementary
service. The terms "stage two" and "stage three" are also defined in CCITT Recommendation I.130 [1]. Where the text
indicates the status of a requirement, (i.e. as strict command or prohibition, as authorization leaving freedom or, as a
capability or possibility), this shall be reflected in the text of the relevant stage two and stage three standards.
Furthermore, conformance to the present document is met by conforming to the stage three standards with the field of
application appropriate to the equipment being implemented. Therefore no method of testing is provided for the present
document.
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] CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[2] ITU-T Recommendation I.112 (1993): "Vocabulary of terms for ISDNs".
[3] ITU-T Recommendation E.164 (1997): "The international public telecommunication numbering
plan".
[4] ITU-T Recommendation I.210 (1993): "Principles of telecommunication services supported by an
ISDN and the means to describe them".
ETSI
7 ETSI EN 300 089 V3.1.1 (2000-12)
[5] ETSI ETS 300 062: "Integrated Services Digital Network (ISDN); Direct Dialling In (DDI)
supplementary service; Service description".
[6] ETSI ETS 300 050: "Integrated Services Digital Network (ISDN); Multiple Subscriber Number
(MSN) supplementary service; Service description".
[7] CCITT Recommendation Q.9 (1988): "Vocabulary of switching and signalling terms".
[8] ETSI EN 300 090: "Integrated Services Digital Network (ISDN); Calling Line Identification
Restriction (CLIR) supplementary service; Service description".
[9] ETSI ETS 300 091: "Integrated Services Digital Network (ISDN); Calling Line Identification
Presentation (CLIP) and Calling Line Identification Restriction (CLIR) supplementary services;
Functional capabilities and information flows".
[10] ETSI ETS 300 092: "Integrated Services Digital Network (ISDN); Calling Line Identification
Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol".
[11] ECMA-155: "Private Integrated Services Networks - Addressing (PTNA-2)".
[12] ETSI EN 301 798: "Anonymous Call Rejection (ACR) supplementary service; Service
description".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply.
Integrated Services Digital Network (ISDN): see ITU-T Recommendation I.112 [2], subclause 2.3, definition 308
service; telecommunications service: see ITU-T Recommendation I.112 [2], subclause 2.2, definition 201
supplementary service: see ITU-T Recommendation I.210 [4], subclause 2.4
ISDN number: number conforming to the numbering plan and structure specified in ITU-T Recommendation E.164 [3]
subaddress: see ITU-T Recommendation E.164 [3], subclause 11.2
national (ISDN) number: see ITU-T Recommendation E.164 [3], subclause 3.2
international (ISDN) number: see ITU-T Recommendation E.164 [3], subclause 3.2
partial number: part of an ISDN number which is significant for distinguishing between addressable entities beyond
the network boundary. The partial number digits and the partial number length shall be governed by the requirements of
the direct dialling in supplementary service and multiple subscriber number supplementary service (see ETS 300 062
[5] and ETS 300 050 [6])
default number: ISDN number registered within the public ISDN following prior agreement between the calling party
and the public ISDN
screening: process whereby the network checks that a user provided information is acceptable to the network
special arrangement: agreement between a customer and a public network operator whereby customer supplied calling
party ISDN numbers are not screened by the public ISDN
basic access: see CCITT Recommendation Q.9 [7], clause 1, definition 1551
primary rate access: see CCITT Recommendation Q.9 [7] clause 1, definition 1552
ETSI
8 ETSI EN 300 089 V3.1.1 (2000-12)
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ACR Anonymous Call Rejection
CLIP Calling Line Identification Presentation
CLIR Calling Line Identification Restriction
DDI Direct Dialling In
ISDN Integrated Services Digital Network
MCID Malicious Call Identifiction
MSN Multiple Subsc
...