1、 m 3404583 003242b 4 m ETS 300 095 January 1992 Reference: T/NA1(89)10 Source: ETSI TC-NA UDC: 621.395 . Key words: ISDN, supplementary service. Integrated Services Digital Network (ISDN); Connected Line Identification Restriction (COLR) supplementary service Service description ETSI European Teleco
2、mmunications Standards Institute ETSI Secretariat: B.P.152 . F - 06561 Valbonne Cedex , France TP. + 33 92 94 42 O0 TF. + 33 93 65 47 16 Tx. 47 O0 40 F European Telecommunications Standards Institute 1 992. All rights reserved. No part may be reproduced or used except as authorised by contract or ot
3、her written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. -_ -_I- 3404583 003242? b I- - Page 2 ETS 300 095: 1992 Whilst every care has been taken in the preparation and publication of this document, erro
4、rs in content, typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to “ETSI Standards Management Dept.“ at the address shown on the title page. b t Contents Foreword . 5 1 2 3 4 5 6 Scope . 7 Normative references 7 Definitions . 8 Symbols and abbreviatio
5、ns . 8 Description 8 Procedures . 8 Provision and withdrawal 8 6.2 Normal procedures . 9 6.2.2 Erasure 9 Invocation and operation 9 6.2,4 Interrogation . 10 6.3 Exceptional procedures . 10 6.3.4 Interrogation . 10 6.1 6.2.1 6.2.3 Activation. deactivation and registration . 9 6.2.3.1 6.2.3.2 Called u
6、ser side 9 Calling user side . 9 6.3.1 Activation. deactivation and registration . 10 6.3.2 Erasure 10 6.3.3 Invocation and operation 10 Intercommunication considerations 10 Interworking with non-ISDNs . lo Interworking with private ISDNs . 10 Interactions with other supplementary services . 10 Advi
7、ce of charge 10 Charging information at call set-up time 10 Charging information during the call . 11 8.2 Call waiting . 11 8.4 Call transfer . 11 Explicit call transfer . 11 7.1 7.2 8.1 8.1.1 8.1.2 8.1.3 Charging information at the end of the call 11 8.3 Call hold . il 8.4.1 8.4.2 Single step call
8、transfer 11 Number identification services 11 8.5.1 Calling line identification presentation . 11 8.5.2 8.5.3 8.5.4 8.5 Calling line identification restriction 11 Connected line identification presentation . 11 Connected line identification restriction 11 Closed user group 12 Completion of calls to
9、busy subscriber 12 8.8 Conference services . 12 Conference call. add-on 12 Meet me conference 12 Direct dialling in . 12 8.6 8.7 8.8.1 8.8.2 8.9 - - Page 4 3404583 0032429 T ETS 300 095:1992 8.10 8.1 1 8.12 8.13 8.14 8.15 8.16 8.1 7 Diversion services . 12 Call forwarding, unconditional . 12 Cali fo
10、rwarding busy 12 Call forwarding no reply, 13 8.10.4 Call deflection . 13 Malicious call identification 13 Multiple subscriber number 13 Subaddressing . 13 Terminal portability . 14 Three party service . 14 User-user signalling, 14 8.1 O. 1 8.10.2 8.10.3 Freephone . 13 Page 5 ETS 300 095:1992 Forewo
11、rd This European Telecommunication Standard (ETS) has been produced by the Network Aspects (NA) Technical Committee of the European Telecommunications Standards Institute (ETSI), and was adopted having passed through the ETSI standards approval procedure. In accordance with CCITT Recommendation 1.13
12、0 111, the following three level structure is used to describe the supplementary telecommunications services as provided by European public x telecommunications operators under the pan-European Integrated Services Digital Network (ISDN): - Stage 1 : is an overall service description, from the users
13、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. This ETC details the stage 1 a
14、spects (overall service description) for the Connected Line Identification Restriction (COLR) supplementary service. The stage two and stage three aspects are detailed in ETS 300,096 (1 992) and ETS 300 098 (1 9921, respectively. * _ M 3404583 0032433 B Page 7 - ETS 300 0951992 c 1 Scope This standa
15、rd defines the stage one of the Connected Line Identification Restriction (COM) supplementary service for the pan-European Integrated Services Digital Network (ISDN) as provided by European public telecommunications operators. Stage one is an overall service descnption from the users point of view (
16、see CCITT Recommendation 1.130 ll), but does not deal with the details of the human interface itself. This standard defines the interworking requirements of private ISDNs with the public ISDN. In addition this standard specifies the base functionality where the service is provided to the user via a
17、private ISDN. This standard does not specify the additional requirements where the service is provided to the user via a telecommunications network that is not an ISDN but does include interworking requirements of other networks with the public ISDN. Interactions with supplementary services not list
18、ed in Clause 8 are outside the scope of this standard. Charging principles are outside the scope of this standard. The COLR supplementary service enables the connected party to prevent presentation of its ISDN number to the calling party. The COLR supplementary service is applicable to all telecommu
19、nications services. This standard is applicable to the stage two and stage three standards for the ISDN COLR supplementary service. The terms “stage two“ and “stage three“ are also defined in CCITT Recommendation 1.130 111. Where the text indicates the status of a requirement, (i.e. as strict comman
20、d or prohibition, as authorisation leaving freedom, or as a capability or possibility), this shall be reflected in the text of the relevant stage two and stage three standards. Furthermore, conformance to this standard is met by conforming to the stage three standards with the field of application a
21、ppropriate to the equipment being implemented. Therefore no method of testing is provided for this standard. 2 Normative references This standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text
22、 and the publications are listed hereafter. For dated references, subsequent amendments to, or revisions of any of these publications apply to this standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. CCITT
23、Recommendation 1.130 (1 988): “Method for the characterisation of telecommunication services supported by an ISDN and network capabilities of an ISDN“. t 21 CCITT Recommendation 1.1 12 (1 989): “Vocabulary of terms for ISDNs“. i31 CCITT Recommendation E.164 (1988): “Numbering plan for the ISDN era“.
24、 41 i51 CCITT Recommendation 1.21 O ! 988): “Principles of telecommunication services supported by an ISDN and the means to describe them“. ETS 300 094 (1 992): “Integrated Services Digital Network (ISDN); Connected Line Identification Presentation (COLP) supplementary service; Service Description“.
25、 Previous page is blank _ Page 8 3404583 0032432 T ETS 300 095: 1992 i61 CCITT Recommendation Q.9 (1 988): “Vocabulary of switching and signalling terms“. . 3 Definitions For the purposes of this standard, the following definitions apply: integrated Services Digital Network (ISDN): see CCITT Recomme
26、ndation I. 1 12 21, 2.3, definition 308. Service; telecommunications service: see CCITT Recommendation 1.1 12 21, 2.2, definition 201. . Supplementary service: see CCIlT Recommendation 1.21 O t41, 2.4. ISDN number: a number conforming to the numbering plan and structure specified in CCITT Recommenda
27、tion E. 164 31. Subaddress: see CCITT Recommendation E.164 31, 1 1.2. Temporary mode: in this mode, the COLR supplementary service is invoked on a per call basis. Permanent mode: in this mode, the COLR supplementary service is invoked automatically by the network on all calls. E Override category: t
28、his allows a special category of users (e.g. police) to override the COLR supplementary service in order to receive the connected line identity. This is a national matter, the operation of which is beyond the scope of this standard. Basic access: see CCITT Recommendation 0.9 t61, 1, definition 1551.
29、 Primary rate access: see CCITT Recommendation Q.9 61, 1, definition 1552. 4 Symbols and abbreviations COLP Connected Line Identification Presentation COLR Connected Line Identification Restriction ISDN Integrated Services Digital Network 5 Description The COLR supplementary service shall apply to t
30、he basic access and to the primary rate access. The COLR supplementary service is a supplementary service offered to the connected party to prevent presentation of the connected partys ISDN number and subaddress information (if any), to the calling party. In the case where the calling party has an o
31、verride category, see subclause 6.2.3. 6 Procedures 6.1 Provision and withdrawal The COLR supplementary service, temporary mode, may be provided on a subscription basis or be generally available. The COLR supplementary service, permanent mode, shall be provided on a subscription basis. As a network
32、option, the COLR supplementary service can be offered with several subscription options. A network providing the COLR supplementary service shall support temporary mode as a minimum. Subscription options are summarised in table 1. - 3404583 0032433 L ._ Subscription option Mode rage a ETS 300 095:19
33、92 Values - permanent mode (active for all calls) Table 1 _ Temporary mode default 4. - presentation restricted - presentation not restricted I - temporary mode (specified by the user per call) 6.2 Normal procedures 6.2.1 Activation, deactivation and registration The COLR supplementary service shall
34、 be activated on provision and deactivated on withdrawal. This supplementary service requires no registration. 6.2.2 Erasure Not applicable. 6.2.3 Invocation and operation 6.2.3.1 Called user side If the called party has subscribed to the COLR supplementary service in the permanent mode, then the ne
35、twork shall automatically invoke the COLR supplementary service for each incoming call. If the called party has subscribed to the COLR supplementary service in the temporary mode with default value “presentation restricted“, then the network shall automatically invoke the COLR supplementary service
36、for each incoming call unless the default value is overridden by subscriber request at the time of answer. If the called party has subscribed to the COLR supplementary service in the temporary mode with default value “presentation not restricted“, then the network shall only invoke the COLR suppleme
37、ntary service if requested by the subscriber on answer. 6.2.3.2 Calling user side If the calling party subscribes to the COLP supplementary service (see ETS 300 094 151) and the COLR supplementary service has been invoked, then the calling party shall receive an indication that the connected party n
38、umber is not available due to restriction. NOTE 1: If an ISDN supports t“- overr.de category, then depending on national regulations, some networt .y.: .*)fine categories of subscribers that have the ability to override the presalr.- _- restriction and have the connected partys ISDN number and subad
39、dress infomation (if any) presented (e.g. the police). The ability to have such an override category is a national matter. NOTE 2: In the case of the override category applying to a calling user on a call which originates in one ISDN and terminates in another ISDN, and if the COLR supplementary serv
40、ice is invoked, then the rules and regulations of the originating network apply. 3404583 0032434 3 ETS 300 095: 1992 6.2.4 Interrogation Not applicable. 6.3 Exceptional procedures 6.3.1 Activation, deactivation and registration Not applicable. P 6.3.2 Erasure Not applicable. 6.3.3 Invocation and ope
41、ration Not applicable. 6.3.4 Interrogation Not applicable. 7 Intercommunication considerations For calls between public ISDNs, when the COLR supplementary service is invoked, the destination network shall provide the originating network with a notification that the ISDN number of the connected party
42、 and the subaddress information (if any) is not allowed to be presented to the calling party. NOTE 1: NOTE 2: When the COLR supplementary service is invoked, some network providers may not send the connected line identity to other network providers. It is assumed that a network able to carry a conne
43、cted line identity is also able to carry the connected line restriction indication. 7.1 Interworking with non-ISDNs As a network option the destination network can restrict any information identifying the connected party from being returned to the originating network when the COLR supplementary serv
44、ice has been invoked. 7.2 Interworking with private ISDNs On calls from the private ISDN to the public ISDN, the public ISDN can restrict any information identifying the connected party from being sent to the private ISDN when the COLR supplementary service has been invoked. On calls from the public
45、 ISDN, the private ISDN can indicate that the COLR supplementary service has been invoked. 8 Interactions with other supplementary services 8.1 Advice of charge 8.1.1 Charging information at call set-up time No impact, i.e. neither supplementary service shall affect the operation of the other supple
46、mentary service. c - Page 11 - - - ETS 300 095: 1992 = 3404583 0032435 5 8.1.2 No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. Charging information during the call 8.1.3 Charging information at the end of the call No impact, i.e. neither s
47、upplementary service shall affect the operation of the other supplementary service. 8.2 * Call waiting No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. 8.3 Call hold No impact, i.e. neither supplementary service shall affect the operation o
48、f the other supplementary service. 8.4 Call transfer 8.4.1 Explicit call transfer A connected users restriction requirements from the original call shall be used in order to restrict the presentation of that users address to the other user in a transferred call. 8.4.2 Single step call transfer A con
49、nected users restriction requirements from the original call shall be used in order to restrict the presentation of that users address to the transferred-to user. A transferred-to users restriction requirements shall be used in order to restrict the presentation of that users address to the other user in a transferred call. 8.5 Number identification services 8.5.1 Calling line identification presentation No impact, i.e. neither supplementary service shall affect the operation of the ot
