SIST ETS 300 648 E1:2004

• Abstract:

  Definition of the supplementary service calling line identification presentation for the PSTN

• Status: Published
• Publication Date: 30-Sep-2004
• ICS: 33.040.35 - Telephone networks
• Technical Committee: SPS - Signalling protocols and switching
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Oct-2004
• Due Date: 01-Oct-2004
• Completion Date: 01-Oct-2004
• Mandate: T-036
• Ref Project: ETSI ETS 300 648 ed.1 (1997-03) - Public Switched Telephone Network (PSTN); Calling Line Identification Presentation (CLIP) supplementary service; Service description

SIST ETS 300 648 E1:2004 is the Slovenian standard identical to ETS 300 648 Edition 1 from ETSI. It specifies the stage 1 service description for Calling Line Identification Presentation (CLIP) on the Public Switched Telephone Network (PSTN). In practice, it tells operators and implementers what the CLIP service does for the called user on PSTN analogue access.

What does SIST ETS 300 648 E1:2004 specify?

SIST ETS 300 648 E1:2004 defines the CLIP supplementary service for the PSTN from the user’s point of view. Stage 1 means an overall service description, not the human-interface detail or the signalling protocol.

The standard covers interworking between PSTNs and private networks, PSTNs and Integrated Services Digital Networks (ISDNs), and Public Land Mobile Networks (PLMNs). It excludes charging principles and supplementary services not covered in clause 8.

The document is organized into clauses 1 to 8:

• Scope
• Normative references
• Definitions
• Abbreviations
• Description
• Procedures
• Intercommunication considerations
• Interactions with other supplementary services

What are the key requirements of SIST ETS 300 648 E1:2004?

The main requirement is that the CLIP supplementary service shall provide the called user with the calling line identity of the calling party. For a PSTN implementation, that means the network must make the caller identity available to the recipient during call setup.

Service application and delivery

• Clause 5 says CLIP shall apply to an analogue access. Some networks may limit it to analogue accesses connected to digital exchanges, which matters when planning access compatibility.
• The network shall deliver the calling line identity during call establishment, either before ringing or during the ringing phase. This tells implementers when the identity has to appear at the terminal.
• As a service provider option, additional information may also be delivered. The standard leaves the content and use of that extra information outside its scope.

Provision, activation and control

• Clause 6.1 says CLIP shall be provided either after prior arrangement with the service provider or as a generally available service. This affects subscription and provisioning models.
• CLIP shall be activated when it is provided and deactivated when it is withdrawn. If the provider offers user control, the served user may also activate or deactivate it from the applicable line.
• If user control is offered, the served user may interrogate the service status. In practice, this is the check for whether CLIP is currently active or inactive.

Call handling and exceptions

• Clause 6.2.3 says the network shall automatically invoke CLIP during call establishment and provide the calling line identity. That means no user action is needed to trigger the service.
• Clause 6.3 defines the main exceptional cases: if the calling line identity is restricted by Calling Line Identification Restriction (CLIR), not available in an interworking situation, or not supplied by the originating network, the served user shall receive an indication that the identity is not available. If the call is answered during transmission, information transfer should stop.

Interworking and service interaction

• Clause 7 says CLIP applies when the calling party is connected to an ISDN, but CLIR on that ISDN user overrides presentation unless an override category applies.
• For PLMNs, the transferred user identity can be used for CLIP. For private networks using direct dialling in capability, the standard leaves the case outside its scope.
• Clause 8 states that CLIR normally overrides CLIP. This is important for network policy and privacy handling.

What terms does SIST ETS 300 648 E1:2004 define?

• Calling line identity - The number or information that identifies the calling party.
• Served user - The user who receives CLIP, meaning the called user.
• Analogue access - An ordinary subscriber line access or a Private Branch Exchange (PBX) analogue line access.
• CLIP - Calling Line Identification Presentation, the supplementary service that presents the caller identity.
• CLIR - Calling Line Identification Restriction, the supplementary service that prevents caller identity presentation.
• PLMN - Public Land Mobile Network, a mobile network that can interwork with the PSTN.

Who uses SIST ETS 300 648 E1:2004?

SIST ETS 300 648 E1:2004 is used by public telecommunication operators, PSTN service designers, and network engineers who implement caller identity presentation. It is also relevant to equipment suppliers and integrators working on subscriber line support for CLIP, especially where PSTN access must interwork with ISDN, private networks, or PLMNs.

Quality and procurement teams use it to check whether a proposed PSTN service or line interface is intended to support CLIP at analogue access, and whether user control, exception handling, and interworking behaviour are aligned with the standard.

What changed in SIST ETS 300 648 E1:2004 from the previous edition?

SIST ETS 300 648 E1:2004 is identical to ETS 300 648 Edition 1.

Which standards are used with SIST ETS 300 648 E1:2004?

Reference	What it contributes
ETS 300 089	ISDN CLIP service description
ETS 300 090	ISDN CLIR service description
CCITT Recommendation I.130	Method for characterizing ISDN telecommunication services and network capabilities
ETS 300 649	PSTN CLIR service description
ETS 300 659-1	PSTN subscriber line protocol for display and related services, including on-hook data transmission

These references provide the service context and the subscriber-line protocol basis for CLIP and related restriction behaviour.

What does the SIST ETS 300 648 E1:2004 document contain?

The document contains a short service description, procedure clauses, interworking considerations, and interaction rules for CLIP on the PSTN. Clause 6 is split into provision and withdrawal, normal procedures, and exceptional procedures, which is useful when mapping the service to provisioning and call-control behaviour.

Clause 7 describes intercommunication with public ISDNs, private networks, and PLMNs, while clause 8 covers the relationship between CLIP and CLIR. The document also states that no test method is provided, because conformity is achieved by conforming to the subscriber line protocol standards that apply to the equipment.

SLOVENSKI STANDARD
01-oktober-2004
-DYQRNRPXWLUDQRWHOHIRQVNRRPUHåMH3671'RSROQLOQDVWRULWHYSULND]D
LGHQWLWHWHNOLþRþHJD&/,32SLVVWRULWYH
Public Switched Telephone Network (PSTN); Calling Line Identification Presentation
(CLIP) supplementary service; Service description
Ta slovenski standard je istoveten z: ETS 300 648 Edition 1
ICS:
33.040.35 Telefonska omrežja Telephone networks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN ETS 300 648
TELECOMMUNICATION March 1997
STANDARD
Source: ETSI TC-NA Reference: DE/NA-010023
ICS: 33.020
Key words: CLIP, PSTN, supplementary service, stage 1
Public Switched Telephone Network (PSTN);
Calling Line Identification Presentation (CLIP)
supplementary service;
Service description
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [e-mail]
Tel.: [phone] - Fax: [phone]
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 1997. All rights reserved.

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ETS 300 648: March 1997
Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.

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ETS 300 648: March 1997
Contents
Foreword .5
1 Scope .7
2 Normative references.7
3 Definitions.8
4 Abbreviations.8
5 Description .8
6 Procedures.8
6.1 Provision and withdrawal .8
6.2 Normal procedures .8
6.2.1 Registration and erasure.8
6.2.2 Activation and deactivation.9
6.2.3 Invocation and operation .9
6.2.4 Interrogation .9
6.3 Exceptional procedures .9
6.3.1 Registration and erasure.9
6.3.2 Activation and deactivation.9
6.3.3 Invocation and operation .9
6.3.4 Interrogation .9
7 Intercommunication considerations.9
7.1 Interworking with public ISDNs .9
7.2 Interworking with private networks.10
7.3 Interworking with PLMNs .10
8 Interactions with other supplementary services .10
8.1 Calling line identification presentation.10
8.2 Calling line identification restriction.10
History.11

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ETS 300 648: March 1997
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ETS 300 648: March 1997
Foreword
This European Telecommunication Standard (ETS) has been produced by the Network Aspects (NA)
Technical Committee of the European Telecommunications Standards Institute (ETSI).
In accordance with CCITT Recommendation I.130 [3], the following three level structure is used to
describe supplementary telecommunications services for the 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 principle of this three level structure has been used to develop the service description for the Calling
Line Identification Presentation (CLIP) supplementary service as provided by European public
telecommunication operators for the Public Switched Telephone Network (PSTN).
This ETS details the stage 1 aspects (overall service description) for the CLIP supplementary service for
the PSTN.
ETS 300 659-1 [5] specifies the subscriber line protocol for various PSTN display services at terminal
equipment in the "on-hook" state and this includes the protocol for the CLIP supplementary service.
Transposition dates
Date of adoption 21 February 1997
Date of latest announcement of this ETS (doa): 30 June 1997
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 December 1997
Date of withdrawal of any conflicting National Standard (dow): 31 December 1997

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ETS 300 648: March 1997
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ETS 300 648: March 1997
1 Scope
This European Telecommunication Standard (ETS) defines the stage one of the Calling Line Identification
Presentation (CLIP) supplementary service for the Public Switched Telephone Network (PSTN) as
provided by European public network operators. Stage one is an overall service description from the
user's point of view (see CCITT Recommendation I.130 [3]), but does not deal with the details of the
human interface itself.
This ETS defines the interworking requirements between PSTNs and private networks, PSTNs and
Integrated Services Digital Networks (ISDNs), and Public Land Mobile Networks (PLMNs).
Interactions w
...