ETSI EN 300 359-1 V1.3.2 (2000-06)

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

REN/SPS-05201-1

Digitalno omrežje z integriranimi storitvami (ISDN) - Dopolnilna storitev: dokončanje klicanja zasedenega naročnika (CCBS) - Protokol digitalne naročniške signalizacije št. 1 (DSS1) - 1. del: Specifikacija protokola

General Information

• Status: Published
• Publication Date: 22-Jun-2000
• Technical Committee: SPS 5 4 - Supplementary Services
• Current Stage: 12 - Completion
• Due Date: 26-May-2000
• Completion Date: 23-Jun-2000
• Ref Project: SIST EN 300 359-1 V1.3.2:2005 - 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

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 300 359-1 V1.3.2:2005
01-april-2005
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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
Ta slovenski standard je istoveten z: EN 300 359-1 Version 1.3.2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
SIST EN 300 359-1 V1.3.2:2005 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 359-1 V1.3.2:2005

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SIST EN 300 359-1 V1.3.2:2005
ETSI EN 300 359-1 V1.3.2 (2000-06)
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 1: Protocol specification

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SIST EN 300 359-1 V1.3.2:2005
2 ETSI EN 300 359-1 V1.3.2 (2000-06)
Reference
REN/SPS-05201-1
Keywords
CCBS, DSS1, ISDN, protocol, supplementary
services
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The copyright and the foregoing restriction extend to reproduction in all media.
© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 359-1 V1.3.2:2005
3 ETSI EN 300 359-1 V1.3.2 (2000-06)
Contents
Intellectual Property Rights.6
Foreword .6
1 Scope.8
2 References.8
3 Definitions.9
4 Abbreviations .10
5 Description .11
6 Operational requirements.11
6.1 Provision and withdrawal .11
6.2 Requirements on the network A side.11
6.3 Requirements on the network B side .12
7 Coding requirements .12
8 State definitions.15
8.1 User A states.15
8.2 User B states.15
8.3 Network A states .16
8.4 Network B states .16
9 Signalling procedures at the coincident S and T reference point .16
9.1 Activation .16
9.1.1 Normal operation.16
9.1.2 Exceptional procedures.17
9.2 User initiated deactivation procedure.19
9.2.1 Normal operation.19
9.2.2 Exceptional procedures.19
9.3 Interrogation.19
9.3.1 General interrogation .19
9.3.1.1 Normal operation .19
9.3.1.2 Exceptional procedures .20
9.3.2 Specific interrogation.20
9.3.2.1 Normal operation .20
9.3.2.2 Exceptional procedures .20
9.4 Invocation and operation.21
9.4.1 Recall indication .21
9.4.1.1 Normal operation .21
9.4.1.2 Exceptional procedures .21
9.4.2 CCBS call request.22
9.4.2.1 Normal operation .22
9.4.2.2 Exceptional procedures .22
9.4.3 CCBS call establishment.23
9.4.3.1 Normal operation .23
9.4.3.2 Exceptional procedures .23
9.4.4 Network initiated deactivation procedures.24
9.4.4.1 Normal operation .24
9.4.4.2 Exceptional procedures .24
9.4.5 B free but A busy procedure .24
9.4.5.1 Normal operation .24
9.4.5.2 Exceptional procedures .25
9.4.6 User A monitoring procedure .25
9.4.6.1 Normal operation .25
9.4.6.2 Exceptional procedures .25
ETSI

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SIST EN 300 359-1 V1.3.2:2005
4 ETSI EN 300 359-1 V1.3.2 (2000-06)
9.5 Procedures at network B.25
9.5.1 Determination that CCBS is available .25
9.5.1.1 Normal operation .25
9.5.1.2 Exceptional procedures .26
9.5.2 Acceptance of a CCBS request .26
9.5.2.1 Normal operation .26
9.5.2.2 Exceptional procedures .26
9.5.3 Queue B processing .26
9.5.3.1 Normal operation .26
9.5.3.2 Exceptional procedures .27
9.5.4 Determination of user B free.27
9.5.4.1 Normal operation .27
9.5.4.2 Exceptional procedures .28
9.5.5 CCBS call .28
9.5.5.1 Normal operation .28
9.5.5.2 Exceptional procedures .29
9.6 Call information retention .29
9.6.1 Normal operation.29
9.6.2 Exceptional procedures.30
9.7 Basic call information and compatibility checking at user A .30
9.7.1 Normal operation.30
9.7.2 Exceptional procedures.30
10 Procedures for interworking with private ISDNs.31
10.1 Procedures for the originating T reference point.31
10.1.1 CCBS available indication.31
10.1.1.1 Normal operation .31
10.1.1.2 Exceptional procedures .31
10.1.2 CCBS supplementary service request .31
10.1.2.1 Normal operation .31
10.1.2.2 Exceptional procedures .32
10.1.3 User B free indication.32
10.1.3.1 Normal operation .32
10.1.3.2 Exceptional procedures .32
10.1.4 Suspend request .33
10.1.4.1 Normal operation .33
10.1.4.2 Exceptional procedures .33
10.1.5 Resume request.33
10.1.5.1 Normal operation .33
10.1.5.2 Exceptional procedures .33
10.1.6 CCBS call establishment.33
10.1.6.1 Normal operation .33
10.1.6.2 Exceptional procedures .33
10.1.7 Deactivation.34
10.1.7.1 Normal operation .34
10.1.7.2 Exceptional procedures .34
10.2 Procedures for the destination T reference point.34
10.2.1 CCBS available indication.34
10.2.1.1 Normal operation .34
10.2.1.2 Exceptional procedures .34
10.2.2 CCBS supplementary service request .35
10.2.2.1 Normal operation .35
10.2.2.2 Exceptional procedures .35
10.2.3 User B free indication.36
10.2.3.1 Normal operation .36
10.2.3.2 Exceptional procedures .36
10.2.4 Suspend request .36
10.2.4.1 Normal operation .36
10.2.4.2 Exceptional procedures .36
10.2.5 Resume request.36
10.2.5.1 Normal operation .36
ETSI

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SIST EN 300 359-1 V1.3.2:2005
5 ETSI EN 300 359-1 V1.3.2 (2000-06)
10.2.5.2 Exceptional procedures .37
10.2.6 CCBS call establishment.37
10.2.6.1 Normal operation .37
10.2.6.2 Exceptional procedures .37
10.2.7 Deactivation.38
10.2.7.1 Normal operation .38
10.2.7.2 Exceptional procedures .38
11 Interactions with other networks.38
12 Interactions with other supplementary services .38
13 Parameter values (timers).38
14 Dynamic description (SDL diagrams).39
Annex A (informative): CCBS signalling flows .77
Annex B (normative): Provision of status request procedures.85
Annex C (informative): Assignment of object identifier values.86
Annex D (informative): Change record.87
D.1 Changes with respect to the previous EN 300 359-1 V1.2.4 .87
D.2 Changes with respect to the previous ETS 300 359-1 .87
History.88
ETSI

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SIST EN 300 359-1 V1.3.2:2005
6 ETSI EN 300 359-1 V1.3.2 (2000-06)
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 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
Protocols for Advanced Networks (SPAN).
The present document is part 1 of a multi-part EN 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".
In accordance with CCITT Recommendation I.130 [3], the following three level structure is used to describe the
supplementary telecommunication services as provided by European public telecommunications operators under the
pan-European 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 3 aspects (signalling system protocols and switching functions) to support the
CCBS supplementary service. The stage 1 and stage 2 aspects are detailed in ETS 300 357 [17] and ETS 300 358 [16],
respectively.
ETSI

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SIST EN 300 359-1 V1.3.2:2005
7 ETSI EN 300 359-1 V1.3.2 (2000-06)
National transposition dates
Date of adoption of this EN: 19 May 2000
Date of latest announcement of this EN (doa): 31 August 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 28 February 2001
Date of withdrawal of any conflicting National Standard (dow): 28 February 2001
ETSI

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SIST EN 300 359-1 V1.3.2:2005
8 ETSI EN 300 359-1 V1.3.2 (2000-06)
1 Scope
The present document specifies 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 [6]) 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 telecommunication service
(see CCITT Recommendation I.130 [3]).
In addition, the present document specifies the protocol requirements at the T reference point where the service is
provided to the user via an intermediate private ISDN.
The present document does not specify the additional protocol requirements where the service is provided to the user via
a telecommunications network that is not an ISDN.
The CCBS supplementary service enables user A, encountering a busy destination B, to have the call completed without
having to make a new call attempt when the busy destination B becomes not busy.
The CCBS supplementary service is applicable to all circuit-switched telecommunication services, except the video
telephony teleservice involving a second connection.
Further parts of EN 300 359 specify the method of testing required to identify conformance to the present document.
The present document is applicable to equipment supporting the CCBS supplementary service, to be attached at either
side of a T reference point or coincident S and T reference point when used as an access to the public ISDN.
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 E.164 (1997): "The international public telecommunication numbering
plan".
[2] ITU-T Recommendation I.112 (1993): "Vocabulary of terms for ISDNs".
[3] CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[4] ITU-T Recommendation I.210 (1993): "Principles of telecommunication services supported by an
ISDN and the means to describe them".
[5] ITU-T Recommendation I.221 (1993): "Common specific characteristics of services".
[6] ITU-T Recommendation I.411 (1993): "ISDN user-network interfaces - Reference configurations".
[7] CCITT Recommendation Q.9 (1988): "Vocabulary of switching and signalling terms".
[8] CCITT Recommendation X.208 (1988): "Specification of Abstract Syntax Notation One
(ASN.1)".
ETSI

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SIST EN 300 359-1 V1.3.2:2005
9 ETSI EN 300 359-1 V1.3.2 (2000-06)
[9] CCITT Recommendation X.219 (1988): "Remote operations: Model, notation and service
definition".
[10] ITU-T Recommendation Z.100 (1993): "CCITT Specification and description language (SDL)".
[11] EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System
No. one (DSS1) protocol; Signalling network layer for circuit-mode basic ca
...