1、STD.ETSI TS LOL 282-ENGL 3400855 0442392 bLT m ETSI TS 1 O1 282 V7.0.0 (1999-08) Technical Specification Digital cellular telecommunications system (Phase 2+); Completion of Calls to Busy Subscriber (CCBS); Service description, Stage 1 (GSM 02.93 version 7.0.0 Release 1998) (GSM 02.93 version 7.0.0
2、Release 1998) 2 ETSI TS 1 O1 282 V7.0.0 (1 999-08) Reference RTS/SMG-O1 O29307 (bvc03i03.PDF) Keywords Digital cellular telecommunications system, Global System for Mobile communications (GSM) ETSI Postal address F-O6921 Sophia Antipolis Cedex - FRANCE Office address 650 Route des Lucioles - Sophia
3、Antipolis Valbonne - FRANCE Siret No 348 623 562 O0017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) No 7803/88 Tel.: i-33 4 92 94 42 O0 Fax: +33 4 93 65 47 16 Internet secretariat etsi.fr Individual copies of this ETSI deliverable can be downloaded from http:/
4、www.etsi.org If you find errors in the present document, send your comment to: editoretsi.fr Copyright Notification No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. O European Telecommunications Sta
5、ndards Institute 1999. All rights reserved. (GSM 02.93 version 7.0.0 Release 1998) 3 ETSI TS 101 282 V7.0.0 (1999-08) Contents Intellectual Property Rights . 5 Foreword 5 i Scope 6 References 6 4 L 3 3.1 3.2 4 4.1 5 5.1 5.1.1 5.1.2 5.2 5.3 5.4 5.5 5.6 5.7 5.8 6 6.1 6.2 6.3 6.4 6.5 6.5.1 6.5.2 6.5.3
6、7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 Definitions and abbreviations 7 Definitions . 7 Abbreviations . 8 Description . 8 Applicability to telecommunications services 8 Normal procedures with successful outcome 9 Provision 9 Subscriber A . 9
7、Subscriber B . 9 Withdrawal 9 Erasure 9 Activation 9 Deactivation . . 10 Invocation and operation . 10 Interrogation 11 Registration . 9 Exceptional procedures or unsuccessful outcome . 11 Registration 11 Erasure 11 Activation . 11 Deactivation . 12 Invocation and operation . 12 Exceptional situatio
8、n at destination Bs side: . 12 Exceptional situation at subscriber As side: 13 Exceptional situations in the network . 14 Interaction with other supplementary services 14 Calling line identification presentation 14 Calling line identification restriction 14 Connected line identification presentation
9、 . 14 Connected line identification restriction 15 Call Forwarding Unconditional (CFU) . 15 Call Forwarding on mobile subscriber Busy ( 15 Call Forwarding on No Reply (CFNRy) 15 Call Forwarding on mobile subscriber Not Reachable (CFNRc) . 16 Call waiting 16 Call hold 16 Multiparty services . 16 Clos
10、ed user group 16 Advice of charge services 16 Barring of All Outgoing Calls (BAOC) . 17 Barring of Outgoing International Calls (BOIC) . 17 Barring of Outgoing International Calls except those directed to the Home PLMN Country (BOIC- exHC) . 17 Barring of All Incoming Calls (BAIC) 17 Barring of Inco
11、ming Calls when roaming outside the home PLMN country (BIC-Roam) 17 Explicit call transfer . 17 Completion of calls to busy subscriber 18 Customised Applications for Mobile network Enhanced Logic (CAMEL) . 18 (GSM 02.93 version 7.0.0 Release 1998) 4 ETSI TS 101 282 V7.0.0 (1999-08) 7.22 8 Mobility a
12、spects . 18 Annex A (informative): Cross Phase compatibility 19 A.l Activation of a CCBS request 19 A.2 CCBS Recall 19 A.3 Interrogation 19 A.4 Deactivation . 19 Support of Private Numbering Plan (SPNP) 18 Annex B (normative): B.l B.l. 1 B.1.2 Roaming to non-supporting networks . 20 Roaming into net
13、works or registering in network entities not supporting CCBS . 20 Destination B may register in a non-supporting network entity . 20 Change Request History 21 Subscriber A may register in a non-supporting network or network entity 20 Annex C (informative): History 22 (GSM 02.93 version 7.0.0 Release
14、 1998) 5 ETSI TS 1 O1 282 V7.0.0 (1 999-08) Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be foun
15、d in SR O00 3 14: “Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notvied to ETSI in respect ofETSi standards“, which is available free of charge from the ETSI Secretariat. Latest updates are available on the ETSI Web server (http:/www.etsi.org/ipr). Pursuant to the E
16、TSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in SR O00 3 14 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword T
17、his Technical Specification (TS) has been produced by the Special Mobile Group (SMG). The present document specifies the stage 1 description of Completion of Calls to Busy Subscriber (CCBS) from the subscribers and users points of view; in particular: - - - the procedures for normal operation with s
18、uccessful outcome; the action to be taken in exceptional circumstances; the interaction with other GSM supplementary services. within the digital cellular telecommunications system. The present document is a SMG approved GSM technical specification version 7 which contains GSM Phase 2+ enhancements/
19、features. The contents of the present document is subject to continuing work within SMG and may change following formal SMG approval. Should SMG modify the contents of the present document, it will be re-eleased by SMG with an identifying change of release date and an increase in version number as f
20、ollows: Version 7.x.y where: 7 indicates GSM Phase 2+ Release 1998; x the second digit is incremented for all other types of changes, i.e. technical enhancements, corrections, updates, etc. y the third digit is incremented when editorial only changes have been incorporated in the specification; STD-
21、ETSI TS LOI, 82-ENGL 1iw 3400855 04423b 265 I (GSM 02.93 version 7.0.0 Release 1998) 6 ETSI TS 101 282 V7.0.0 (1999-08) 1 Scope The present document specifies the stage 1 description of Completion of Calls to Busy Subscriber (CCBS) from the subscribers and users points of view; in particular: - - -
22、the procedures for normal operation with successful outcome; the action to be taken in exceptional circumstances; the interaction with other GSM supplementary services; The present document does not deal with the Man-Machine Interface (MMI) requirements, but makes reference to the appropriate GSM sp
23、ecifications. The charging principles applied to CCBS are outside of the scope of this specifcation. The present document is applicable to the digital cellular telecommunication system Global System for Mobile communications (GSM). Any interactions with other networks not dealt with in the present d
24、ocument are outside the scope of the present document. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication, edition number, version number, etc.
25、) or non-specific. 0 For a specific reference, subsequent revisions do not apply. For a non-specific reference, the latest version applies. A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same number. 0 For this Release 1998 document, ref
26、erences to GSM documents are for Release 1998 versions (version 7.x.y). il GSM 01.04: “Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. GSM 02.04: “Digital cellular telecommunications system (Phase 2+); General on supplementary services“. 21 31 GSM 02.30: “Digital
27、cellular telecommunications system (Phase 2+); Man-Machine Interface (MMI) of the Mobile Station (MS)“. GSM 09.02: “Digital cellular telecommunications system (Phase 2+); Mobile Application Part (MAP) specification“. GSM 02.85: “Digital cellular telecommunications system (Phase 2+); Closed User Grou
28、p (CUG) Supplementary Services - Stage 1“. 141 51 (GSM 02.93 version 7.0.0 Release 1998) 7 ETSI TS 1 O1 282 V7.0.0 (1 999-08) 3 3.1 Definitions and abbreviations Def i n it i o ns For the purposes of the present document, the following definitions apply: CCBS supplementary service: is a service whic
29、h enables a calling subscriber A, encountering a NDUB destination B, to have the call completed when the busy destination B becomes idle, without having to make a new call attempt. CCBS busy on the A side: is caused by the following condition: - while the CCBS recall timer T4 or the CCBS notificatio
30、n timer T10 is running or until the CCBS call is completed or the CCBS call fails. CCBS busy on the B side: is caused by the following conditions: - - while the idle guard timer (T8) is running; while there is CCBS recall pending (Le. while the CCBS recall timer T9 is running). Subscriber A and Dest
31、ination B is indicated as idle if there are no active calls, no calls on hold and no call waiting for the subscribers. Subscriber A and Destination B is indicated as not reachable if one of the conditions defined in GSM 09.02 apply (e.g. IMSI detach, no paging response, no location information in HL
32、R). CCBS recall: an indication informing subscriber A that destination B is idle. CCBS call: a call set-up from subscriber A to destination B resulting from subscriber As acceptance of a CCBS recall. CCBS request: A request by subscriber A against an NDUB destination B requesting that subscriber A b
33、e automatically informed when destination B becomes idle. The CCBS request shall be held in a CCBS queue pending the correct conditions for the CCBS request to be completed. Destination B: the entity addressed in the original call set up. Subscriber A: the subscriber that originated the call, activa
34、ted a CCBS request and is uniquely identifiable for CCBS recall. Suspended CCBS request: a CCBS request which cannot be served even if destination B is idle, because subscriber A is CCBS busy, not reachable or is not idle and ignores the CCBS recall. Resumed CCBS request: a CCBS request which was su
35、spended before and has become not suspended as a result of subscriber A becoming idle, not CCBS busy or reachable again. Automatic deactivation: an action by the network resulting in removal of ail reference to a CCBS request without informing the subscriber. Automatic deactivation is performed afte
36、r a successful CCBS procedure or for exceptional situations. Timers at the originating side (A): CCBS retention timer (Tl): this timer specifies the amount of time that the network retains the call information when the call encounters busy. The value shall be greater than 15 seconds. The upper limit
37、 of the CCBS retention timer is a network option. CCBS service duration timer (T3): the maximum time the CCBS request will be active within the network. The value of this period is a network option, in the range of 15 to 45 minutes. CCBS recall timer (T4): the maximum time the network will wait for
38、a subscriber A response to a CCBS recall when subscriber A is idle. The value of this timer is a network option and shall be in the range 20 to 30 seconds. (GSM 02.93 version 7.0.0 Release 1998) 8 ETSI TS 1 O1 282 V7.0.0 (1 999-08) CCBS notification timer (T10): the maximum time the network will wai
39、t for a subscriber A response to a CCBS recall when subscriber A is not idle and not CCBS busy. The value of the timer is a network option and shall be in the range 20 to 30 seconds. CCBS resume timer (T11): the timer started as soon as a suspended CCBS request is resumed, making sure only one CCBS
40、request is becoming resumed at a time. Duration of the timer shall allow a CCBS recall resulting from the destination side CCBS queue being processed. The value of the timer is a network option and shall be in the range 20 to 25 seconds. Timers at the terminating side (B): CCBS service duration time
41、r (T7): is the timer which specifies the maximum length of time the CCBS request will be held within the network. The value of this period is a network option shall be greater than 45 minutes. Destination B idle guard timer (TS): the time the network will wait after destination B has become idle bef
42、ore initiating a “CCBS recall“ to subscriber A. The value of this timer is a network option and shall be in the range O to 15 seconds. NOTE 1: This timer enables destination B to initiate a call before any notification is given to Subscriber A that destination B has become idle and prevents destinat
43、ion B to receive incoming calls. CCBS recall B timer (T9): is the timer, which supervises the CCBS recall establishment on the B-side. The value is a network option and shall be shall be in the range of 40 to 55 seconds. NOTE 2: This timer prevents destination B from receiving other incoming calls t
44、han from subscriber A. NOTE 3: The timer values may vary from one PLMN to another and thus give the subscriber a slightly different perception of the service as she roams between PLMNs. 3.2 Abbreviations For the purposes of the present document the following abbreviations apply: CCBS NDUB Network De
45、termined User Busy Completion of Calls to Busy Subscriber Additional GSM related abbreviations may be found in GSM 01.04. 4 Description When subscriber A encounters a Network Determined User Busy (NDUB) destination B, subscriber A can request the CCBS supplementary service (i.e. activate a CCBS Requ
46、est against destination B). The network will then monitor the wanted destination B for becoming idle. When the wanted destination B becomes idle, then the network will wait a short time in order to allow destination B to make an outgoing call. If destination B does not make any outgoing call within
47、this time, then the network shall automatically recall subscriber A. When subscriber A accepts the CCBS recall, within a defined time, then the network will automatically generate a CCBS call to destination B. CCBS has to be supported by the originating, as well as by the terminating network. 4.1 Ap
48、plicability to telecommunications services The applicability of the CCBS supplementary service is defined in GSM 02.04. (GSM 02.93 version 7.0.0 Release 1998) 9 ETSI TS 1 O1 282 V7.0.0 (1 999-08) 5 Normal procedures with successful outcome 5.1 P rovi si o n 5.1 .I Subscriber A The CCBS supplementary
49、 service shall be provided to subscriber A after prior arrangement with the service provider. This supplementary service is provisioned for all Basic Services (BS) subscribed to and to which it is applicable, i.e. not provisioned to any subset of these BSs. 5.1.2 Subscriber B Subscriber B is the user of destination B and is not provided with the CCBS supplementary service. However, if provided by the network operator/service provider as an option, subscriber B may elect not to be a target of CCBS requests. In this case, the size of her destination B CCBS queue sh
