SIST EN 300 195-1 V1.4.3:2003

• Abstract:

  To include SCF and CCNR

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.080 - Integrated Services Digital Network (ISDN)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 195-1 V1.4.3 (1998-10) - Integrated Services Digital Network (ISDN); Supplementary service interactions; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification

SIST EN 300 195-1 V1.4.3:2003 is the Slovenian version of ETSI EN 300 195-1 V1.4.3, a DSS1 protocol specification for supplementary service interactions in ISDN. Published by SIST, it tells ISDN equipment and networks how pairs of supplementary services behave at the T reference point or coincident S and T reference point, including private ISDN interworking. The scope includes SCF and CCNR among the service combinations covered.

What does SIST EN 300 195-1 V1.4.3:2003 specify?

SIST EN 300 195-1 V1.4.3:2003 specifies stage three protocol behavior for supplementary service interactions in pan-European ISDN using the Digital Subscriber Signalling System No. one (DSS1) protocol. In practice, it gives the signalling rules that let different supplementary services work together without ambiguity.

The document covers interactions between many ISDN supplementary services, and it also addresses the case where those services are provided through a private ISDN at the T reference point. It does not cover extra protocol requirements for services delivered through a telecommunications network that is not an ISDN.

The document is organized into scope, normative references, definitions, abbreviations, a service-interaction description, general procedures, and informative annexes.

Annex	What it covers
A	Signalling flows
B	Example of the interaction between the AOC-E and CONF supplementary services

What are the key requirements of SIST EN 300 195-1 V1.4.3:2003?

Clause 5 is the core of SIST EN 300 195-1 V1.4.3:2003. It sets out, pair by pair, when an interaction has no special protocol impact, when it is outside scope, and when extra DSS1 procedures are needed.

• Figure 1 classifies interactions as NA or NI, or points to the relevant clause. For an implementer, this is the first check: if the pair is NI, the individual service specs are enough; if it is handled here, the pair needs special signalling logic.
• AOC with transfer and rerouting services is tightly controlled. For AOC-E with ECT, the user may send an IdentificationOfCharge invoke component with a ChargingAssociation in the same FACILITY message as the transfer request, and the network returns it with the charge information when the transferred call ends. This lets billing data stay attached to the right call.
• AOC-D and AOC-S are not used in combination with some rerouting cases. For CD and CFB, and in several related forwarding cases, the document excludes AOC-S and AOC-D and uses AOC-E rules instead. In practice, charging records must follow the final routed call, not the original path.
• The document assigns billing labels to rerouting outcomes. For AOC-E, the network uses specific AOCEBillingId values for call transfer, call deflection, call forwarding busy, call forwarding no reply, and call forwarding unconditional. That gives billing systems a clear reason code for the charge.
• CCBS and AOC interact by preserving the request across the original call and the callback call. The network stores an accepted AOC request for the original call and applies it to the CCBS call, then releases it when that CCBS instance ends. This matters when charging must continue across the callback process.
• Conference and hold-related interactions depend on the correct call reference. For CONF, HOLD, 3PTY, ECT, UUS and related combinations, the clauses specify whether charging follows the conference call, a private communication, or the leg used to carry a service request. Implementers need to track the right call reference to avoid misbilling.
• Call suspension has special AOC-D handling. During suspension, the network may place subtotal charging information in the SUSPEND ACKNOWLEDGE message, or indicate that charge information is not available and continue the suspension procedure. That affects how a user sees charge data during a paused call.
• Clause 6 defines common charging procedures. It covers identification of charge and the ordering of checks, so implementations apply the same decision logic consistently across different interactions.

What terms does SIST EN 300 195-1 V1.4.3:2003 define?

• Advice of Charge (AOC) - The charging-related supplementary service family used to send charging information during a call, at set-up, or at release.
• Completion of Calls to Busy Subscriber (CCBS) - A supplementary service that controls a callback to a busy destination.
• Completion of Calls on No Reply (CCNR) - A supplementary service that controls completion of a call when the called user did not answer.
• Call Deflection (CD) - A supplementary service that redirects a call to another destination before it is answered.
• served user - The DSS1 protocol entity on the user side that requests and controls the identified supplementary service.
• remote user - The DSS1 protocol entity involved in the supplementary service instance but without control over it.
• local interaction - An interaction where the same served user is involved in more than one supplementary service on the same access or call.
• private network - The DSS1 protocol entity on the user side of the interface when a T reference point applies.

Who uses SIST EN 300 195-1 V1.4.3:2003?

SIST EN 300 195-1 V1.4.3:2003 is used by manufacturers, protocol engineers, network operators, and test laboratories working on ISDN supplementary services. It matters when equipment must support several services on the same access, especially where charging, forwarding, transfer, conference, hold, or callback functions can overlap.

It is relevant for:

• public ISDN access equipment and switching systems
• private ISDNs and PBX-type implementations
• interoperability testing at the T reference point or coincident S and T reference point
• conformance analysis and protocol validation for supplementary services

What changed in SIST EN 300 195-1 V1.4.3:2003 from the previous edition?

SIST EN 300 195-1 V1.4.3:2003 is described as an extended and updated version of ETS 300 195-1 (1995). The foreword says the update adds coverage for Message Waiting Indication (MWI), Outgoing Call Barring (OCB), Completion of Calls on No Reply (CCNR), and Selective Call Forwarding (SCF).

Which standards are used with SIST EN 300 195-1 V1.4.3:2003?

The same standard family also includes Parts 2 to 6 for PICS, TSS&TP, ATS and PIXIT material for user and network conformance work.

Reference	What it contributes
EN 300 196-1	Generic functional protocol for supplementary services, including common component handling and encoding support
EN 300 403-1	DSS1 signalling network layer for circuit-mode basic call control
ETS 300 402-1	DSS1 user-network interface data link layer
ETS/EN specifications for AOC, CCBS, CCNR, Diversion, CLIP, CLIR, COLP, COLR, CONF, ECT, CUG, CW, DDI, FPH, HOLD, MCID, MSN, MWI, OCB, SUB, TP, UUS and 3PTY	Base protocol rules that this document combines into interaction rules
ITU-T E.164, I.112, I.130, I.210, I.221, I.411, X.208, X.219	Numbering, vocabulary, service characterization, reference configurations, ASN.1, and remote-operation notation

What does the SIST EN 300 195-1 V1.4.3:2003 document contain?

SIST EN 300 195-1 V1.4.3:2003 contains a large interaction matrix in Figure 1, then detailed clauses for each service pair with coding requirements, normal procedures, and exceptional procedures. It also includes rules for interworking with private ISDNs where that is relevant.

The document gives ASN.1 operation and error definitions where charging interactions need them, especially for IdentificationOfCharge and related facility handling. It uses FACILITY messages, invoke components, return result components, and return error components as the practical signalling tools.

Annex A provides signalling flows, and Annex B gives an example of the interaction between AOC-E and CONF. These parts support design review, implementation, and conformance testing.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Integrated Services Digital Network (ISDN); Supplementary service interactions; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:EN 300 195-1 Version 1.4.3SIST EN 300 195-1 V1.4.3:2003en01-december-2003SIST EN 300 195-1 V1.4.3:2003SLOVENSKI
STANDARD
EN 300 195-1 V1.4.3 (1998-10)European Standard (Telecommunications series)Integrated Services Digital Network (ISDN);Supplementary service interactions;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specificationSIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)2ReferenceREN/SPS-05138-1 (1t090je0.PDF)KeywordsISDN, DSS1, supplementary service, interactionETSIPostal addressF-06921 Sophia Antipolis Cedex - FRANCEOffice address650 Route des Lucioles - Sophia AntipolisValbonne - FRANCETel.: [phone]
Fax: [phone]Siret N° 348 623 562 00017 - NAF 742 CAssociation à but non lucratif enregistrée à laSous-Préfecture de Grasse (06) N° 7803/[e-mail]://www.etsi.orgCopyright NotificationNo 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.SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)3ContentsIntellectual Property Rights.11Foreword.111Scope.122Normative references.133Definitions.154Abbreviations.175Description of supplementary service interactions.185.1The AOC-D and AOC-E supplementary services.195.2The AOC and ECT supplementary services.195.2.1Coding requirements.195.2.2Signalling procedures at the coincident S and T reference point.205.2.2.1Delivery of charging information to the transferring user.205.2.2.1.1Normal procedures.205.2.2.1.2Exceptional procedures.215.2.3Procedures for interworking with private ISDNs.215.3The AOC and CCBS supplementary services.215.3.1Coding requirements.215.3.2Signalling procedures at the coincident S and T reference point.215.3.2.1Requesting an AOC supplementary service.215.3.2.1.1Normal operation.215.3.2.1.2Exceptional procedures.215.3.2.2Delivery of charging information to the user.215.3.2.2.1Normal operation.215.3.2.2.2Exceptional procedures.215.3.3Procedures for interworking with private ISDNs.225.3.3.1Requesting an AOC supplementary service by the private network.225.3.3.1.1Normal operation.225.3.3.1.2Exceptional procedures.225.3.3.2Delivery of charging information to the private network.225.3.3.2.1Normal operation.225.3.3.2.2Exceptional procedures.225.4The AOC and CD supplementary services.225.4.1Coding requirements.225.4.2Signalling procedures at the coincident S and T reference point.225.4.2.1Delivery of charging information to the deflecting user.235.4.2.1.1Normal operation.235.4.2.1.2Exceptional procedures.235.4.3Procedures for interworking with private ISDNs.235.4.3.1Delivery of charging information to the private network when the CD supplementary service isprovided to the private ISDN.235.4.3.2Delivery of charging information to the private network when partial rerouteing applies.245.4.3.2.1Normal operation.245.4.3.2.2Exceptional procedures.245.5The AOC and CFB supplementary services.255.5.1Coding requirements.255.5.2Signalling procedures at the coincident S and T reference point.255.5.2.1Delivery of charging information to the forwarding user.255.5.2.1.1Normal operation.255.5.2.1.2Exceptional procedures.255.5.3Procedures for interworking with private ISDNs.255.5.3.1Delivery of charging information to the private network when the CFB supplementary service isprovided to the private ISDN.265.5.3.2Delivery of charging information to the private network when partial rerouteing applies.26SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)45.6The AOC and CFNR supplementary services.265.7The AOC and CFU supplementary services.265.8The AOC and 3PTY supplementary services.265.8.1Coding requirements.265.8.2Signalling procedures at the coincident S and T reference point.265.8.2.1Normal operation.265.8.2.2Exceptional procedures.265.8.3Procedures for interworking with private ISDNs.265.9The AOC and CONF supplementary services.275.9.1Coding requirements.275.9.2Signalling procedures at the coincident S and T reference point.275.9.2.1Normal operation.275.9.2.2Exceptional procedures.275.9.3Procedures for interworking with private ISDNs.275.10The AOC and TP supplementary services.285.10.1Coding requirements.285.10.2Signalling procedures at the coincident S and T reference point.285.10.2.1In the call suspension phase.285.10.2.1.1Normal operation.285.10.2.1.2Exceptional procedures.285.10.2.2In the call resume phase.295.10.2.2.1Normal operation.295.10.2.2.2Exceptional procedures.295.10.3Procedures for interworking with private ISDNs.295.11The CONF and HOLD supplementary services.305.11.1Coding requirements.305.11.2Signalling procedures at the coincident S and T reference point.305.11.2.1Invocation of the HOLD supplementary service by the served user of the CONF supplementaryservice.305.11.2.1.1Normal operation.305.11.2.1.2Exceptional procedures.305.11.2.2Invocation of the HOLD supplementary service by the remote user of the CONF supplementaryservice.315.11.2.2.1Normal operation.315.11.2.2.2Exceptional procedures.315.11.3Procedures for interworking with private ISDNs.315.12The CONF and CUG supplementary service.315.12.1Coding requirements.315.12.2Signalling procedures at the coincident S and T reference point.315.12.2.1Adding a call.315.12.2.1.1Normal operation.315.12.2.1.2Exceptional procedures.315.12.3Procedures for interworking with private ISDNs.315.13The CONF and CONF supplementary services.325.13.1Coding requirements.325.13.2Signalling procedures at the coincident S and T reference point.325.13.2.1Re-invoking the CONF supplementary service.325.13.2.1.1Normal operation.325.13.2.1.2Exceptional procedures.325.13.2.2Adding a conference call to a conference.325.13.2.2.1Normal operation.325.13.2.2.2Exceptional procedures.325.13.2.3Notification of the served user.325.13.2.3.1Normal procedures.325.13.2.3.2Exceptional procedures.325.13.3Procedures for interworking with private ISDNs.325.14The CONF and TP supplementary services.335.14.1Coding requirements.335.14.2Signalling procedures at the coincident S and T reference point.335.14.2.1Served user of CONF supplementary service uses TP supplementary service.33SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)55.14.2.1.1Normal operation.335.14.2.1.2Exceptional procedures.335.14.2.2Remote user of CONF supplementary service uses TP supplementary service.335.14.2.2.1Normal operation.335.14.2.2.2Exceptional procedures.335.14.2.3Remote user of the TP supplementary service uses the CONF supplementary service.335.14.2.3.1Normal operation.335.14.2.3.2Exceptional procedures.335.15The CONF and 3PTY supplementary services.345.15.1Coding requirements.345.15.2Signalling procedures at the coincident S and T reference point.345.15.2.1Requesting a three-way conversation where one of the connections belongs to a conference call.345.15.2.1.1Normal operation.345.15.2.1.2Exceptional procedures.345.15.2.2Adding a three-way conversation to a conference.345.15.2.2.1Normal operation.345.15.2.2.2Exceptional procedures.345.15.2.3Invocation of the CONF supplementary service for a connection in a three-way conversation.345.15.2.3.1Normal operation.345.15.2.3.2Exceptional procedures.345.15.2.4Remote user uses the 3PTY supplementary service.355.15.2.4.1Normal operation.355.15.2.4.2Exceptional procedures.355.15.3Procedures for interworking with private ISDNs.355.16The CONF and UUS service 3 supplementary services.355.16.1Coding requirements.355.16.2Signalling procedures at the coincident S and T reference point.355.16.2.1Service 3 activation.355.16.2.1.1Normal operation.355.16.2.1.2Exceptional procedures.365.16.2.2Transfer of user information.365.16.2.2.1Normal operation.365.16.2.2.2Exceptional procedures.365.16.2.3Flow control.365.16.2.3.1Normal operation.365.16.2.3.2Exceptional procedures.365.16.3Procedures for interworking with private ISDNs.365.17The CONF and ECT supplementary services.375.17.1Coding requirements.375.17.2Signalling procedures at the coincident S and T reference point.375.17.2.1Served user uses the ECT supplementary service.375.17.2.1.1Normal operation.375.17.2.1.2Exceptional procedures.375.17.2.2Remote user uses the ECT supplementary service.375.17.2.2.1Normal operation.375.17.2.2.2Exceptional procedures.385.17.3Procedures for interworking with private ISDNs.385.18The CD and COLP supplementary services.385.18.1Coding requirements.385.18.2Signalling procedures at the coincident S and T reference point.385.18.2.1Normal operation.385.18.2.2Exceptional procedures.385.18.3Procedures for interworking with private ISDNs.385.19The CD and COLR supplementary services.385.20The CD and UUS supplementary services.395.20.1Coding requirements.395.20.2Signalling procedures at the coincident S and T reference point.395.20.2.1Procedures at the served user when deflection takes place before alerting.395.20.2.1.1Normal operation.395.20.2.1.2Exceptional procedures.39SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)65.20.2.2Procedures at the served user when deflection takes place after alerting.395.20.2.2.1Service 1 implicitly requested.395.20.2.2.2Service 1 explicitly requested.405.20.2.2.3Service 2.415.20.2.2.4Service 3.415.20.3Procedures for interworking with private ISDNs.425.20.3.1Procedures where the CD supplementary service applies to the whole private ISDN.425.20.3.2Procedures where partial rerouteing takes place.425.21The CFB and COLP supplementary services.425.22The CFB and COLR supplementary services.425.23The CFB and UUS supplementary services.425.23.1Coding requirements.425.23.2Signalling procedures at the coincident S and T reference point.435.23.2.1Normal operation.435.23.2.2Exceptional procedures.435.23.3Procedures for interworking with private ISDNs.435.23.3.1Procedures where the CFB supplementary service applies to the whole private ISDN.435.23.3.2Procedures where partial rerouteing takes place.435.23.3.2.1Normal operation.435.23.3.2.2Exceptional procedures.445.24The CFNR and COLP supplementary services.445.25The CFNR and COLR supplementary services.445.26The CFNR and UUS supplementary services.455.26.1Coding requirements.455.26.2Signalling procedures at the coincident S and T reference point.455.26.2.1Service 1 implicitly requested.455.26.2.1.1Normal operation.455.26.2.1.2Exceptional procedures.455.26.2.2Service 1 explicitly requested.455.26.2.2.1Normal operation.455.26.2.2.2Exceptional procedures.465.26.2.3Service 2.465.26.2.3.1Normal operation.465.26.2.3.2Exceptional procedures.465.26.2.4Service 3.465.26.2.4.1Normal operation.465.26.2.4.2Exceptional procedures.475.26.3Procedures for interworking with private ISDNs.475.26.3.1Procedures where the CFNR supplementary services applies to the whole private ISDN.475.26.3.2Procedures where partial rerouteing takes place.475.27The CFU and COLP supplementary services.475.28The CFU and COLR supplementary services.475.29The CFU and UUS supplementary services.475.29.1Coding requirements.475.29.2Signalling procedures at the coincident S and T reference point.475.29.2.1Normal operation.475.29.2.2Exceptional procedures.485.29.3Procedures for interworking with private ISDNs.485.29.3.1Procedures where the CFU supplementary service applies to the whole private ISDN.485.29.3.2Procedures where partial rerouteing takes place.485.30The TP and 3PTY supplementary services.485.30.1Coding requirements.485.30.2Signalling procedures at the coincident S and T reference point.485.30.2.1Served user uses the TP supplementary service.485.30.2.1.1Normal operation.485.30.2.1.2Exceptional procedures.485.30.2.2Remote user of the TP supplementary service uses the 3PTY supplementary service.495.30.2.2.1Normal operation.495.30.2.2.2Exceptional procedures.495.30.3Procedures for interworking with private ISDNs.49SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)75.31The HOLD and TP supplementary services.495.31.1Coding requirements.495.31.2Signalling procedures at the coincident S and T reference point.495.31.2.1Served user of the HOLD supplementary service uses the TP supplementary service.495.31.2.1.1Normal operation.495.31.2.1.2Exceptional procedures.495.31.2.2Remote user of the HOLD supplementary service uses the TP supplementary service.495.31.2.3Remote user of the TP supplementary service uses the HOLD supplementary service.495.31.2.3.1Normal operation.495.31.2.3.2Exceptional procedures.505.31.3Procedures for interworking with private ISDNs.505.32The HOLD and 3PTY supplementary services.505.32.1Coding requirements.505.32.2Signalling procedures at the coincident S and T reference point.505.32.2.1Creating a three-way conversation from a held call.505.32.2.2Holding a three-way conversation.505.32.2.3Retrieving a three-way conversation.505.32.3Procedures for interworking with private ISDNs.505.33The CUG and 3PTY supplementary services.515.33.1Coding requirements.515.33.2Signalling procedures at the coincident S and T reference point.515.33.2.1Creating a three-way conversation.515.33.2.1.1Normal operation.515.33.2.1.2Exceptional procedures.515.33.3Procedures for interworking with private ISDNs.515.34The ECT and MCID supplementary services.515.34.1Coding requirements.515.34.2Signalling procedures at the coincident S and T reference point.515.34.2.1Normal operation.515.34.2.2Exceptional procedures.515.35The ECT and 3PTY supplementary services.525.35.1Coding requirements.525.35.2Signalling procedures at the coincident S and T reference point.525.35.2.1Transfer of a three-way conversation.525.35.2.1.1Normal operation.525.35.2.1.2Exceptional procedures.525.35.3Procedures for interworking with private ISDNs.525.36The ECT and UUS supplementary services.525.37The CCBS and UUS supplementary services.535.37.1Coding requirements.535.37.2Signalling procedures at the coincident S and T reference point.535.37.2.1Normal operation.535.37.2.2Exceptional procedures.535.37.3Procedures for interworking with private ISDNs.535.38The CCBS and CLIP supplementary services.535.38.1Coding requirements.535.38.2Signalling procedures at the coincident S and T reference point.535.38.2.1Normal operation.535.38.2.2Exceptional procedures.535.38.3Procedures for interworking with private ISDNs.545.38.3.1Procedures for the originating T reference point.545.38.3.1.1Normal operation.545.38.3.1.2Exceptional procedures.545.38.3.2Procedures for the destination T reference point.545.38.3.2.1Normal operation.545.38.3.2.2Exceptional procedures.545.39The CCBS and CLIR supplementary services.545.39.1Coding requirements.545.39.2Signalling procedures at the coincident S and T reference point.545.39.2.1Normal operation.54SIST EN 300 195-1 V1.4.3:2003

ETSIEN 300 195-1 V1.4.3 (1998-10)85.39.2.2Exceptional procedures.545.39.3Procedures for interworking with private ISDNs.555.39.3.1Procedures for the originating T reference point.555.39.3.1.1Normal operation.555.39.3.1.2Exceptional procedures.
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