1、 ETSI EN 300 121 V1.2.1 (2003-07)European Standard (Telecommunications series) Integrated Services Digital Network (ISDN);Application of the ISDN User Part (ISUP) ofITU-T Signalling System No.7 (SS7) for internationalISDN interconnections (ISUP version 1);Amendment 1: International EmergencyPreferen
2、ce Scheme (IEPS) serviceITU-T Recommendation Q.767 Amendment 1 (2002), modifiedETSI ETSI EN 300 121 V1.2.1 (2003-07) 2 Reference REN/SPAN-130317 Keywords ISDN, ISUP, SS7, interworking, endorsement ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4
3、93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one elect
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9、 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:/webapp.etsi.org/IPR/home.asp). Pursua
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11、ent. Foreword This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Services and Protocols for Advanced Networks (SPAN). The present document is addition 1 covering the International Emergency Preference Scheme (IEPS) in an ISDN User Part (ISUP) implementat
12、ion for the international interface, as identified below: Addition 1: “International Emergency Preference Scheme (IEPS) service ITU-T Amendment 1 (11/2002) to Recommendation Q.767 (02/91)“ The present document details the stage three aspects (signalling system protocols and switching functions) need
13、ed to support the International Emergency Preference Scheme (IEPS) service. The stage 1 aspects are detailed in ITU-T Recommendation E.106 1. The present document is an endorsement of an amendment of the ITU-T Recommendation and it also refers to ETS 300 121 which is an endorsement. National transpo
14、sition dates Date of adoption of this EN: 27 June 2003 Date of latest announcement of this EN (doa): 30 September 2003 Date of latest publication of new National Standard or endorsement of this EN (dop/e): 31 March 2004 Date of withdrawal of any conflicting National Standard (dow): 31 March 2004 End
15、orsement notice The elements of ITU-T Recommendation Q.767 Amendment 1 apply with the following modifications. ETSI ETSI EN 300 121 V1.2.1 (2003-07) 4 Global modifications to ITU-T Amendment 1 to Recommendation Q.767 Insert the following two clauses (Scope and References). Scope The present document
16、 specifies the signalling protocol and switching aspects of the International Emergency Preference Scheme (IEPS) service for the pan-European Integrated Services Digital Network (ISDN) as provided by the European public telecommunications operators by means of the Signalling System No.7 (SS7) protoc
17、ol for the ISDN User Part (ISUP). 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 present document does not specify the additional protocol requirements for the national sig
18、nalling interface. NOTE: If the implementation of a signalling system in a national network conflicts with measures described here the international gateway of the network is expected to provide the interworking between the two. The present document applies only to the international interconnection.
19、 The IEPS service provides the calling party with preferential treatment during call and connection setup. The IEPS service is applicable to all international circuit switched telecommunication services. References The following documents contain provisions which, through reference in this text, con
20、stitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. Referenced do
21、cuments which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. 1 ITU-T Recommendation E.106 (2000) “Description of an international emergency preference scheme (IEPS)“. 2 ETSI ETS 300 121 (1992): “Integrated Services Digital Network (
22、ISDN); Application of the ISDN User Part (ISUP) of CCITT Signalling System No.7 for international ISDN interconnections (ISUP version 1)“. 3 ITU-T Recommendation Q.764: “Signalling System No. 7 - ISDN User Part signalling procedures“. ETSI ETSI EN 300 121 V1.2.1 (2003-07) 5 Throughout the text of IT
23、U-T Recommendation Q767 amendment 1 Replace references as shown in table 1. Table 1 Reference in ITU-T Recommendation Q767 amendment 1 Modified Reference ITU-T Recommendation Q767 ITU-T Recommendation Q767 as modified by ETS 300 121 2 ETSI ETSI EN 300 121 V1.2.1 (2003-07) 6 History Document history Edition 1 December 1992 Publication of ETS 300 121 V1.2.1 February 2003 One-step Approval Procedure OAP 20030627: 2003-02-26 to 2003-06-27 V1.2.1 July 2003 Publication
