SIST ETS 300 140:1997

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digitalno omrežje z integriranimi storitvami (ISDN) - Dopolnilna storitev: zadržanje klica (HOLD) - Funkcijske zmožnosti in informacijski tokoviIntegrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary service; Functional capabilities and information flows33.080Digitalno omrežje z integriranimi storitvami (ISDN)Integrated Services Digital Network (ISDN)ICS:Ta slovenski standard je istoveten z:ETS 300 140 Edition 1SIST ETS 300 140:1997en01-maj-1997SIST ETS 300 140:1997SLOVENSKI
STANDARD



SIST ETS 300 140:1997



EUROPEANETS 300 140TELECOMMUNICATIONMay 1992STANDARDSource: ETSI TC-SPSReference: T/S 22-19ICS:33.080Key words:ISDN, supplementary service.Integrated Services Digital Network (ISDN);Call Hold (HOLD) supplementary serviceFunctional capabilities and information flowsETSIEuropean Telecommunications Standards InstituteETSI SecretariatPostal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.frTel.: +33 92 94 42 00 - Fax: +33 93 65 47 16Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.© European Telecommunications Standards Institute 1992. All rights reserved.SIST ETS 300 140:1997



Page 2ETS 300 140: May 1992Whilst 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.SIST ETS 300 140:1997



Page 3ETS 300 140: May 1992ContentsForeword.51Scope.72Normative references.73Definitions.84Symbols and abbreviations.85Description.86Derivation of the functional model.86.1Functional model description.86.2Description of the functional entities.86.3Relationship with a basic service.97Information flows.97.1Information flow diagrams.97.2Definition of the individual information flows.107.2.1Relationship ra.107.2.1.1Contents of HOLD.107.2.1.2Contents of HOLD REJECT.107.2.1.3Contents of RETRIEVE.107.2.1.4Contents of RETRIEVE REJECT.117.2.2Relationship rb.118SDL diagrams for functional entities.128.1FE1.128.2FE2.188.3FE3.259Functional Entity Actions (FEAs).269.1FEAs of FE1.269.2FEAs of FE2.269.3FEAs of FE3.2610Allocation of functional entities to physical locations.27History.28SIST ETS 300 140:1997



Page 4ETS 300 140: May 1992Blank pageSIST ETS 300 140:1997



Page 5ETS 300 140: May 1992ForewordThis European Telecommunication Standard (ETS) has been produced by the Signalling Protocols &Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI) andwas adopted having passed through the ETSI standards approval procedure.In accordance with CCITT Recommendation I.130 [1], the following three level structure is used todescribe the supplementary telecommunications services as provided by European publictelecommunications operators under the pan-European Integrated Services Digital Network (ISDN):-Stage 1: is an overall service description, from the user's stand-point;-Stage 2: identifies the functional capabilities and information flows needed to support the servicedescribed in stage 1; and-Stage 3: defines the signalling system protocols and switching functions needed to implement theservice described in stage 1.This ETS details the stage 2 aspects (functional capabilities and information flows) needed to support theCall Hold (HOLD) supplementary service.
The stage 1 and stage 3 aspects are detailed in ETS 300 139(1992) and ETS 300 141 (1992), respectively.SIST ETS 300 140:1997



Page 6ETS 300 140: May 1992Blank pageSIST ETS 300 140:1997



Page 7ETS 300 140: May 19921ScopeThis standard defines the stage two of the Call Hold (HOLD) supplementary service for the pan-EuropeanIntegrated Services Digital Network (ISDN) as provided by European public telecommunications operators.Stage two identifies the functional capabilities and the information flows needed to support the servicedescription.
The stage two description also identifies user operations not directly associated with a call(see CCITT Recommendation I.130 [1]).This standard is specified according to the methodology specified in CCITT Recommendation Q.65 [2].This standard does not formally describe the relationship between this supplementary service and thebasic call but, where possible, this information is included for guidance.In addition this standard does not specify the requirements where the service is provided to the user via aprivate ISDN.
This standard does not specify the requirements for the allocation of defined functionalentities within a private ISDN; it does however define which functional entities may be allocated to a privateISDN.This standard does not specify the additional requirements where the service is provided to the user via atelecommunications network that is not an ISDN.The HOLD supplementary service allows a user to interrupt communications on an existing call and thensubsequently, if desired, re-establish communications.This standard is applicable to the stage three standards for the ISDN HOLD supplementary service.
Theterms "stage three" is also defined in CCITT Recommendation I.130 [1].
Where the text indicates thestatus of a requirement (i.e. as strict command or prohibition, as authorisation leaving freedom, or as acapability or possibility) this shall be reflected in the text of the relevant stage three standards.Furthermore, conformance to this standard is met by conforming to the stage three standards with the fieldof application appropriate to the equipment being implemented.
Therefore no method of testing is providedfor this standard.2Normative referencesThis standard incorporates by dated or undated reference, provisions from other publications.
Thesenormative references are cited at the appropriate places in the text and the publications are listedhereafter.
For dated references, subsequent amendments to, or revisions of any of these publicationsapply to this ETS only when incorporated in it by amendment or revision.
For undated references thelatest edition of the publication referred to applies.[1]CCITT Recommendation I.130 (1988): "Method for the characterisation oftelecommunication services supported by an ISDN and network capabilities of anISDN".[2]CCITT Recommendation Q.65 (1988): "Stage 2 of the method for thecharacterisation of services supported by an ISDN".[3]CCITT Recomm
...