1、STD-ETSI GSM 02.85-ENGL L77b m 3400855 015877L 853 m GSM GSM 02.85 November 1996 Version 5.0.0 Source: ETSI TC-SMG Reference: TS/SMG-O10285Q ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE CO-MMUMCATIOXS Digita
2、l cellular telecommunications system; Closed User Group (CUG) Supplementary Services - Stage 1 (GSM 02.85) ETSI European Telecommunications Standards Institute ETSI Secretariat Postai address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonn
3、e - FRANCE X.400: efr, a=atlas, p=ets, s=secretarat - Internet: secretariatQetsi.fr Tel.: +33 4 92 94 42 O0 - Fax: +33 4 93 65 47 16 Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all
4、 media. O European Telecornmunications Standards Institute 1996. All rights reserved. Page 2 GSM 02.85 Version 5.0.0: November 1996 Whilst 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 con
5、cerning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. STD-ETSI GSM 02*85-ENGL L77b 3400855 0358773 b2b M Page 3 GSM 02.85 Version 5.0.0: November 1996 Contents Foreword . 5 O Scope 7 0.1 Normative references 7 0.2 Abbreviations . 7 1
6、 Closed User Group (CUG) 7 1.1 Definition 7 1.2 Description . 7 1.2.1 Service description 7 1.2.2 Applicability to telecommunication services 8 1.2.3 Definitions 8 Normal procedures with successful outcome 8 1.3.1 Provision 8 1.3.2 Withdrawal . 9 1.3.5 Activation . 9 1.3.6 Deactivation . 9 1.3.7 Inv
7、ocation 9 1.3.8 Normal operation with successful outcome . 9 1.3.8.1 Mobile originating calls 10 1.3.8.1.1 A user with no preferential CUG and no OA capability 10 1.3.8.1.2 A user with a preferential CUG but no 1.3.8.1.3 A user with the OA capability but no preferential CUG . 10 1.3.8.1.4 A user wit
8、h a preferential CUG and the OA capability . 10 1.3.8.1.5 A user not subscribing to the CUG Supplementary Service . 11 Mobile terminating calls . 11 1.3.8.2.1 CUG call with no OA indication . 11 1.3.8.2.2 CUG call with OA indication 11 1.3.8.2.3 Normal call 11 Exceptional procedures or unsuccessful
9、outcome 11 1.4.1 Exceptional operation or unsuccessful outcome . 11 1.4.1 O Roaming into networks not supporting CUG . 12 1.5 Alternate procedures 12 1.6 Interactions with other Supplementary Services 12 1.6.82.1 Call forwarding unconditional 12 1 B.82.2 Call forwarding on mobile subscriber busy 13
10、1.6.82.3 Call forwarding on no reply 13 1.6.82.4 Call forwarding on mobile subscriber not reachable . 13 1.6.83.1 Call waiting 13 1.6.84.1 Multi-party service . 13 1.6.88 Call restriction Supplementary Services 13 1.7 Inteworking considerations . 13 1.3 OA capability . 10 1.3.8.2 1.4 Annex 1 (normat
11、ive): General subscription options (Fer Subscriber) . 15 Annex 2 (normative): Originating GSM PLMN network actions on call requests on the calling users side . 16 Annex 3 (normative): Terminating GSM PLMN network actions 17 Annex 4 (normative): CUG interaction with the call forwarding Supplementary
12、Services 18 History 19 Page 4 GSM 02.85 Version 5.0.0: November 1996 Blank page STD-ETSI GSM 02*85-ENGL 1776 H 3q00855 0358795 qT7 Page 5 GSM 02.85 Version 5.0.0: November 1996 Foreword This Global System for Mobile communications Technical Specification (GTS) has been produced by the Special Mobile
13、 Group (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI). This GTS describes Closed User Group (CUG) Supplementary Services (stage 1) within the digital cellular telecommunications system. The contents of this GTS are subject to continuing work within TC-SM
14、G and may change following formal TC-SMG approval. Should TC-SMG modify the contents of this GTS it will then be republished by ETSI with an identifying change of release date and an increase in version number as follows: Version 5.x.y where: y the third digit is incremented when editorial only chan
15、ges have been incorporated in the specif cation; x the second digit is incremented for all other types of changes, .e. technical enhancements, corrections, updates, etc. The specification from which this GTS has been derived was originally based on CEPT documentation, hence the presentation of this
16、GTS may not be entirely in accordance with the ETSVPNE rules. Page 6 GSM 02.85 Version 5.0.0: November 1996 Blank page STD-ETSI GSM 02-85-ENGL 177b 3400855 0358777 271 Page 7 GSM 02.85 Version 5.0.0: November 1996 O Scope This Global System for Mobile communications Technical Specification (GTS) des
17、cribes the Supplementary Services belonging to the group Community of Interest Supplementary Services. The general aspects, including definitions and recommended provision, of the description of the GSM Supplementary Services are given in GSM 02.04. The group of Community of Interest Supplementary S
18、ervices includes one Supplementary Service: - Closed user group (clause 1). 0.1 Normative references This GTS incorporates by dated and undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed he
19、reafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this GTS only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies. 131 141 151 GSM O1 .O4 (ETR 350): “Digital cel
20、lular telecommunication system (Phase 2+); Abbreviations and acronyms“. GSM 02.04 (ETS 300 91 8): “Digital cellular telecommunications system (Phase 2+); General on supplementaiy services“. GSM 03.03 (ETS 300 927): “Digital cellular telecommunications system (Phase 2+); Numbering, addressing and ide
21、ntification“. CCITT Recommendation X.121: “International numbering plan for public data networks“. CCITT Recommendation X.180: “Administrative arrangements for closed user groups (CUGs)“. 0.2 Abbreviations Abbreviations used in this specification are listed in GSM 01.04. 1 Closed User Group (CUG) 1.
22、1 Definition The Closed User Group (CUG) Supplementary Service enables subscribers, connected to a PLMN and possibly also other networks, to form closed user groups (CUGs) to and from which access is restricted. A specific user may be a member of one or more CUGs. Members of a specific CUG can commu
23、nicate among each other but not, in general, with users outside the group. The ability to set up emergency calls remains unaffected. 1.2 Description 1.2.1 Service description An ISDN/MSISDN number shall identify each member of a CUG. A CUG shall be defined for one or more basic service groups. CUG m
24、embers can have additional capabilities that allow them to originate calls outside the group, and/or to receive calls from outside the group. CUG members can have additional restrictions that prevent them from originating calls to other members of the CUG, or from receiving calls from other members
25、of the CUG. STDmETSI GSM 02.85-ENGL 177b m 3900855 0258778 LOB m Page 8 GSM 02.85 Version 5.0.0: November 1996 CUG shall remain unaffected when members roam to PLMNs supporting CUG. Roaming subscribers must have the same CUG facilities on the roamed-to PLMN as on the Home PLMN. When roaming to netwo
26、rks not supporting CUG, the CUG restrictions must be enforced. (However, where possible, the CUG facilities should be supported, see subclause 1.4.1 O.) Each individual subscriber may be a member of a maximum of 10 CUGs. 1.2.2 Applicability to telecommunication services The CUG Supplementary Service
27、 is applicable to all telecommunication services, except Emergency calls, SMS, dedicated PAD access and dedicated Packet access. 1.2.3 Definitions MSISDN: A number conforming to the numbering plan and structure specified in GSM 03.03. CUG member: A user who has subscribed to the CUG Supplementary Se
28、rvice and is one of the users in the group formed by a particular CUG. CUG index: A value assigned by the network to identify a CUG. CUG Interlock Code (IC): Is used by the network (not by the MS) to identify CUG membership. preferential CUG: A preferential CUG, which can be specified for each basic
29、 service group, is the nominated default CUG to be used when no explicit CUG index is received by the network. suppress preferential CUG: A user action to prohibit the use of the preferential CUG, on a per call basis. Incoming Access (IA): An arrangement which allows a member of a CUG to receive cal
30、ls from outside the CUG. Outgoing Access (OA): An arrangement which allows a member of a CUG to place calls outside the CUG. suppress OA: A user action to prohibit the use of the OA subscription option, on a per call basis. Incoming Calls Barred Within A CUG (ICB): An access restriction that prevent
31、s a CUG member from receiving calls from other members of that group. Outgoing Calls Barred Within A CUG (OCB): An access restriction that prevents a CUG member from placing calls to other members of that group. CUG calls: A CUG call is a call which is restricted to a pre-defined group of users. 1.3
32、 Normal procedures with successful outcome 1.3.1 Provision The CUG Supplementary Service shall be provided after prior arrangement with the service provider. At provision subscription options should be selected by the served mobile subscriber. A user may be a member of several CUGs. The service prov
33、ider defines the number of CUGs, up to the maximum stated in subclause 1.2.1, which can be allocated to an individual subscriber. The user shall choose one of the following subscription options for each basic service group applied to the CUG Supplementary Service. This subscription option may be pro
34、visioned on a per basic service group basis or for all basic services: Page 9 GSM 02.85 Version 5.0.0: November 1996 - CUG calls only; - CUG with incoming access, .e. can also receive calls, which are not subject to CUG restrictions; - CUG with outgoing access, .e. can also make calls, which are not
35、 subject to CUG restrictions; - CUG with incoming and outgoing access, .e. can also make and receive calls, which are not subject to CUG restrictions. A user may subscribe to one of two additional restrictions applying for each particular CUG: - - incoming calls barred within a CUG; outgoing calls b
36、arred within a CUG. The network shall provide a subscription option in order to enable the user to specify a preferential CUG, for each basic service group included in at least one of the CUG(s). The user can request that no Preferential CUG exists, or that a particular one of her CUGs (or the only
37、one if a single CUG applies) is used as a preferential CUG for the particular basic service group. If a user has the subscription option outgoing calls barred within a CUG, it is not allowed to speci that particular CUG as a preferential CUG. The subscription options are shown in annex I. The CUG in
38、dices shall be allocated by prior arrangement with the service provider. The choice of preferential CUG(s) shall be alterable only by service provider action upon request by the served user. 1.3.2 Withdrawal Withdrawal of the CUG supplementary Service, membership of one or more CUGs, will be by the
39、action of the service provider, at the request of the subscriber or CUG management, or for administrative reasons. 1.3.5 Activation The CUG Supplementary Service will be activated by the service provider as a result of provision. 1.3.6 Deactivation The CUG Supplementary Service will be deactivated b
40、y the service provider as a result of withdrawal. 1.3.7 Invocation Normal call setup procedures shall apply to calls with the CUG Supplementary Service. 1.3.8 Normal operation with successful outcome A user having neither the restriction of incoming calls barred within a CUG, nor the restriction of
41、outgoing calls barred within a CUG can make calls to, and receive calls from, members of those CUGs of which the user is a member. Upon receipt of a call setup attempt to or from a CUG subscriber the network shall check its validity in conjunction with the access capabilities subscribed to. On succe
42、ssful validation of a CUG call setup attempt the network shall attempt to establish the call to the required destination. STD-ETSI GSM 02-85-ENGL L77b 3LI00855 0157000 4b4 Page 10 GSM 02.85 Version 5.0.0: November 1996 1.3.8.1 Mobile originating calls When originating a call, the calling user may sp
43、ecify a CUG index to indicate that service to a particular CUG is required. If no CUG index is given then the preferential CUG (if specified) is used by the network. The Outgoing Access (OA) capability allows CUG subscribers to make outgoing calls, which are not subject to CUG restrictions. If a use
44、r, subscribing to the CUG Supplementary Service, originates a call and enters a request for suppression of both a preferential CUG and of the OA capability but does not enter a CUG index, the call shall be rejected. If a user, subscribing to the CUG Supplementary Service and having the OA capability
45、, originates a call and enters a CUG index (without suppressing the OA capability), while having the restriction of outgoing calls barred within that CUG, the call shall be established without any CUG information .e. as a normal call. The originating GSM PLMN network actions are illustrated in annex
46、 2. As a network option, the network may signal towards the calling user the CUG index in use for the current call, if this can be determined by the network. 1.3.8.1.1 A user with no preferential CUG and no OA capability If a user, subscribing to the CUG Supplementary Service, who has no preferentia
47、l CUG and no OA capability, originates a call and enters a CUG index (and possibly requests suppression of a preferential CUG and/or the OA capability) the call shall be established using the CUG index provided. If no CUG index is entered the call shall be rejected. 1.3.8.1.2 A user with a preferent
48、ial CUG but no OA capability If a user, subscribing to the CUG Supplementary Service, who has a preferential CUG but no OA capability, originates a call and enters no CUG information (or if she only requests suppression of the OA capability),the call shall be established using the preferential CUG.
49、If she enters a CUG index (and possibly a request for suppression of the preferential CUG and/or the OA capability), the call shall be established using the CUG index provided. If she enters only a request for suppression of the preferential CUG, .e. no CUG index, the call shall be rejected. 1.3.8.1.3 A user with the OA capability but no preferential CUG If a user, subscribing to the CUG Supplementary Service, who has the OA capability but no preferential CUG, originates a call and enters no CUG information (or if she only requests suppression of a preferential CUG), t
