ETSI ETS 300 054 ed.1 (1991-10)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Digitalno omrežje z integriranimi storitvami (ISDN) - Dopolnilna storitev: prenosljivost terminala (TP) - Funkcijske zmožnosti in informacijski tokoviIntegrated Services Digital Network (ISDN); Terminal Portability (TP) 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 300 054 Edition 1SIST ETS 300 054:1997en01-maj-1997SIST ETS 300 054:1997SLOVENSKI

EUROPEANETS 300 054TELECOMMUNICATIONOctober 1991STANDARDSource: ETSI TC-SPSReference: T/S 22-28ICS:33.080Key words:ISDN, supplementary serviceIntegrated Services Digital Network (ISDN);Terminal Portability (TP) 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 1991. All rights reserved.SIST ETS 300 054:1997

Page 2ETS 300 054: October 1991Whilst 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 300 054:1997

Page 3ETS 300 054: October 1991ContentsForeword...........................................................................................................................................51Scope......................................................................................................................................72Normative references................................................................................................................83Definitions.................................................................................................................................84Symbols and abbreviations.........................................................................................................85Description...............................................................................................................................96Derivation of the functional model...............................................................................................96.1Functional model description........................................................................................96.2Description of the functional entities..............................................................................96.3Relationship with a basic service..................................................................................97Information flows.....................................................................................................................107.1Information flow diagrams..........................................................................................107.2Definition of the individual information flows.................................................................117.2.1Relationship ra.......................................................................................117.2.1.1Contents of TP HOLD.....................................................117.2.1.2Contents of TP RETRIEVE..............................................117.2.1.3Contents of TP HOLD REJECT.......................................117.2.1.4Contents of TP RETRIEVE REJECT................................117.2.2Relationship rb.......................................................................................127.2.2.1Contents of INFORM 1...................................................127.2.2.2Contents of INFORM 2...................................................128SDL diagrams for functional entities..........................................................................................138.1FE1..........................................................................................................................138.2FE2..........................................................................................................................158.3FE3..........................................................................................................................189Functional entity actions (FEAs)................................................................................................199.1FEAs of FE1.............................................................................................................199.2FEAs of FE2.............................................................................................................199.3FEAs of FE3.............................................................................................................2010Allocation of functional entities to physical localities....................................................................20History.............................................................................................................................................21SIST ETS 300 054:1997

Page 5ETS 300 054: October 1991ForewordThis European Telecommunication Standard (ETS) has been produced by the Signalling Protocols &Switching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI).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 standpoint;-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 theTerminal Portability (TP) supplementary service.

The stage 1 and stage 3 aspects are detailed in ETS300 053 (1991) and ETS 300 055 (1991), respectively.SIST ETS 300 054:1997

Page 7ETS 300 054: October 19911ScopeThis standard defines the stage two of the Terminal Portability (TP) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunicationsoperators. Stage two identifies the functional capabilities and the information flows needed to support thestage 1 service description. The stage two description also identifies user operations not directlyassociated 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 ISDNThe TP supplementary service allows a user to move a terminal from one socket to another within onegiven basic access during the active state of a call. It also allows a user to move a call from one terminalto another terminal within one basic access during the active phase of the call.The portability of a terminal during the idle state is part of the basic access capabilities and does notrequire any procedure.The portability of a terminal in the call establishment and in the call clearing phases is not possible.The TP supplementary service applies to some interactive circuit switched telecommunication servicesrequiring the attendance of a human being, such as telephony, videotelephony, etc.The TP supplementary service does not apply to non-interactive services such as facsimile, teletex, mixed-mode, computer communication, etc. However, the network will not take any action to restrict itsapplicability.It is a user's responsibility to resume the call with a terminal which is compatible both with the remoteterminal and with the type of connection previously established.This standard is applicable to the stage three standards for the ISDN Integrated Services Digital NetworkTP supplementary service. The term "stage three" is also defined in CCITT Recommendation I.130 [1].Where the text indicates the status of a requirement (i.e. as a strict command or prohibition, asauthorisation leaving freedom, as a capability or possibility) this shall be reflected in the text of the relevantstage 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.SIST ETS 300 054:1997