1、GSM GSM 03.82 December 1996 Version 5.0.0 Reference: TS/SMG-O30382Q Source: ETSI TC-SMG ICs: 33.020 Key words: Digital cellular telecommunications system, Global System for Mobile communications (GSM) GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS Digital cellular telecommunications system; Call Forwarding
2、 (CF) supplementary services - Stage 2 (GSM 03.82) ETSI European Telecommunications Standards Institute ETSI Secretariat Postal address: F-O6921 Sophia Antipolis CEDEX - FRANCE Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE X.400: c=fr, a=atlas, p=etsi, s=secretarat -
3、Internet: secretariat 8 etci.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 media. O European Telecommunications Standards Inst
4、itute 1996. All rights reserved. STD.ETS1 GSM 03-92-ENGL L77b 3400855 OL52b32 O29 m Page 2 GSM 03.82 version 5.0.0: December 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 conce
5、rning its accuracy, please write to “ETSI Editing and Committee Support Dept.“ at the address shown on the title page. Page 3 GSM 03.82 version 5.0.0: December 1996 Contents Foreword . 5 O Scope . 7 0.1 Normative references . 7 0.2 Abbreviations 7 Cross phase compatibility 7 0.3 0.4 The forwarded-to
6、 number . 7 1 Call forwarding unconditional (CFU) . 8 Handling of call forwarding unconditional 8 1.1.1 Registration 8 1.1.3 Activation . 13 1.1.4 Deactivation . 15 1.1.5 Interrogation . 17 State transition model 21 Information stored in the VLR . 22 Cross phase compatibility 22 1.1 1.1.2 Erasure 11
7、 1.2 Functions and information flows 17 1.3 Information stored in the HLR . 20 1.4 1.5 Transfer of information from HLR to VLR . 21 1.6 1.7 Handover 22 1.8 1 B.1 1.8.2 1.8.3 1.8.4 MS, MSC, VLR or HLR only support Phase 1 control of SS by the subscriber 22 HLR only supports Phase 1 updating of subscr
8、iber information . 22 VLR only supports Phase 1 updating of subscriber information . 22 GMSC only supports Phase 1 call handling . 22 2 Call forwarding on mobile subscriber busy . 23 Handling of call forwarding on mobile subscriber busy 23 2.1.1 Registration 23 2.1.2 Erasure 25 2.1.3 Activation . 27
9、 2.1.4 Deactivation . 29 2.1.5 Interrogation . 31 Functions and information flows 31 Information stored in the HLR . 37 State transition model 38 Transfer of information from HLR to VLR . 38 Information stored in the VLR . 39 2.7 Handover 39 Cross phase compatibility 39 subscriber 39 VLR only suppor
10、ts Phase 1 updating of subscriber information . 39 VLR only supports Phase 1 call handling . 39 2.1 2.2 2.3 2.4 2.5 2.6 2.8 2.8.1 2.8.2 2.8.3 2.8.4 MS, MSC, VLR or HLR only support Phase 1 control of SS by the HLR only supports Phase 1 updating of subscriber information . 39 3 Call forwarding on no
11、reply . 40 Handling of call forwarding on no reply 40 3.1.1 Registration 40 3.1.2 Erasure 42 3.1.3 Activation . 44 3.1.4 Deactivation . 46 3.1 Page 4 GSM 03.82 version 5.0.0: December 1996 3.1.5 Interrogation . 48 3.2 Functions and information flows 48 3.3 Information stored in the HLR . 52 3.4 Stat
12、e transition model 53 3.5 Transfer of information from HLR to VLR . 53 3.6 Information stored in the VLR . 54 3.7 Handover 54 3.8 Cross phase compatibility . 54 subscriber 54 HLR only supports Phase 1 updating of subscriber information . 54 VLR only supports Phase 1 updating of subscriber informatio
13、n . 54 VLR only supports Phase 1 call handling . 54 3.8.1 3.8.2 3.8.3 3.8.4 MS. MSC, VLR or HLR only support Phase 1 control of SS by the 4 Call forwarding on mobile subscriber not reachable 55 Handling of call forwarding on mobile subscriber not reachable 55 4.1.1 Registration 55 4.1.2 Erasure 57 4
14、.1.3 Activation . 59 4.1.4 Deactivation . 61 4.1.5 Interrogation . 63 Functions and information flows 64 4.1 4.2 4.2.1 Call re-routed from VLR 64 4.2.2 Call re-routed from HLR 64 Information stored in the HLR . 76 State transition model 77 Transfer of information from HLR to VLR . 77 Information sto
15、red in the VLR . 78 4.7 Handover 78 Cross phase compatibility . 78 MS, MSC, VLR or HLR only support Phase 1 control of SS by the subscriber 78 HLR only supports Phase 1 updating of subscriber information . 78 VLR only supports Phase 1 updating of subscriber information . 78 GMSC only supports Phase
16、1 call handling . 78 VLR only supports Phase 1 call handling . 78 4.3 4.4 4.5 4.6 4.8 4.8.1 4.8.2 4.8.3 4.8.4 4.8.5 History 79 Page 5 GSM 03.82 version 5.0.0: December 1996 Foreword This Global System for Mobile communications Technical Specification (GTS) has been produced by the Special Mobile Gro
17、up (SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI). This GTS defines the stage 2 of the Call Forwarding (CF) supplementary services for the Digital cellular telecommunications system. The contents of this GTS are subject to continuing work within TC-SMG a
18、nd 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 incrernented when editorial only change
19、s have been incorporated in the specification; 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 GT
20、S may not be entirely in accordance with the ETSVPNE rules. Page 6 GSM 03.82 version 5.0.0: December 1996 Blank page Page 7 GSM 03.82 version 5.0.0: December 1996 O Scope This Global System for Mobile communications Technical Specification (GTS) gives the stage 2 description of the call forwarding s
21、upplementary services. The group of Supplementary services call offering supplementary services is divided into 4 different supplementary services: - Call forwarding unconditional (CFU) (clause 1); - Call forwarding on mobile subscriber busy (CFB) (clause 2); - Call forwarding on no reply (CFNRY) (c
22、lause 3); - Call forwarding on mobile subscriber not reachable (C FN Rc) (clause 4). 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
23、listed hereafter. 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. 31 41 GSM O1 .O4 (ETR 350): “Digital
24、cellular telecommunications system (Phase 2+); Abbreviations and acronyms“. GSM 02.04 (ETS 300 91 8): “Digital cellular telecommunications system (Phase 2+); General on supplementary services“. GSM 02.82: “Digital cellular telecommunications system; Call Forwarding (CF) Supplementary Setvices - Stag
25、e 1 I. GSM 03.1 1 (ETS 300 928): “Digital cellular telecommunications system; Technical realization of supplementary services“. GSM 03.1 5: “Digital cellular telecommunications system (Phase 2+); Technical realization of operator determined barring“. 0.2 Abbreviations Abbreviations used in this GTS
26、are listed in GSM 01.04. 0.3 The forwarded-to number As indicated in GSM 02.82 the forwarded-to numbers are stored in the international format. The transfer from the HLR to other network entities and storage in the VLR shall also be in the international format. 0.4 Cross phase compatibility For the
27、following supplementary services, a number of changes exist between this GTS and the Phase 1 specification: - Call forwarding unconditional; - Call forwarding on mobile subscriber busy; - Call forwarding on no reply; Page 8 GSM 03.82 version 5.0.0: December 1996 - Call forwarding on mobile subscribe
28、r not reachable. The main body of this GTS assumes that all network entities comply with this version of the service. In each case an additional subclause (subclause x6) defines the additional requirements for when one or more network entities or the MS complies with the Phase 1 specifications for t
29、he supplementary service procedu res. 1 Cal I forward i n g u n con d it io na I (C FU) 1.1 Handling of call forwarding unconditional 1.1.1 Registration At the beginning of registration subscription to the basic service, provision of the supplementary service and sufficiency of registration informat
30、ion has to be checked (see figure 1.2). The following information has to be registered in the network: 1 ) the forwarded-to number (possibly including a sub-address); 2) information as to whether all calls or all calls of a specific basic service group should be forwarded. The basic service group co
31、de If the registration request received by the HLR does not contain any basic service group code, the registration shall be performed for all subscribed basic service groups for which CFU is provided (see figure 1.2). The forwarded-to number If the forwarded-to number is a number in the HPLMN countr
32、y, it may be entered by the served mobile subscriber in three different formats, independent of his actual location, according to the schemes: 1) national (significant) number; 2) (trunk) prefix plus national (significant) number; 3) international prefix, country code, national (significant) number.
33、 The received number may have to be converted to an international number before further processing (see figure 1.2). The network may also validate the forwarded-to number before accepting the call forwarding registration request. Sutmlementarv Service interaction Possible interaction situations betw
34、een CFU and other call forwarding and barring supplementary services must then be checked. This is described in figure 1.2. Also see technical specifications GSM 02.04 and 02.82. For interaction between CFU and other supplementary services (.e. not call barring or call forwarding services), the read
35、er is referred to the respective technical specification for those supplementary services. Notifications to the subscriber When the mobile subscriber registers CFU, the network shall attempt to register and activate the service. The network will return notification of acceptance of the request. This
36、 notification will include the forwarded-to number and possibly the basic service group code to which CFU is registered. Page 9 GSM 03.82 version 5.0.0 December 1996 If the system cannot accept a registration request, the network sends a notification that CFU registration was not successful to the s
37、erved mobile subscriber. The information flow for registration of CFU is shown in figure 1.1. MS Register CFU Xielease complete Facility Ac knowledge Acknowledge VLR Erase CFU Acknowledqe HLR CFU2 Figure 1.3: Erasure of call forwarding unconditional STD-ETSI GSM 03.82-ENGL 197b 3400855 0152b1i2 T78
38、Page 12 GSM 03.82 version 5.0.0: December 1996 1 Process CFU 382-14(1) erase no Yes set BS = all BS I operative I I set error set result I I I I . Acknowledge I .I deactivate included conditional forwarding I I, error set BS = all BS make quiescent operative acknowledge a Cl r-l idle Roaming outside
39、 the home PLMN country. 7 1 BS: Basic Service group. BIC-Roam: Barring of Incoming Calls when Figure 1.8: CFU4 Call forwarding unconditional deactivation process Page 17 GSM 03.82 version 5.0.0: December 1996 1.1.5 Interrogation Data reauest The data request procedure enat.vs the mobile subscriber t
40、o obtain information aboi the data stored in the PLMN. Interrogation of CFU is handled by the HLR which returns the required information or error to the MS (see figure 1.9). MS 1.2 nterrogate CFU . ?elease complete Faci 1 it y MS C VLR 1 I interrogate CFU Acknowledge Set-up II Info request Info ack
41、Set-up HLRb WAF007 I I Information request , MSCb HLRc Information Acknowledge II Set-up I I II LEC NOTE: info: information req: request Y: Yes N: No ack: acknowledge OR1 : Forwarding requested OR2: Notification to calling subscriber required SCC Figure 1.1 1 : Information flow for call forwarding u
42、nconditional Page 20 GSM 03.82 version 5.0.0: December 1996 1.3 Information stored in the HLR The following logical states are applicable for CFU (refer to GSM 03.1 1 for an explanation of the notation): Provisioning State Registration State Activation State HLR induction State (Not Provisioned, Not
43、 Registered, Not Active, Not Induced) (Provisioned, Not Registered, Not Active, Not Induced) (Provisioned, Registered, Not Active, Not Induced) (Provisioned, Registered, Active and Quiescent, Not Induced) (Provisioned, Registered, Active and Operative, Not Induced) The registration and activation st
44、ate may be different for each applicable elementary basic service group. The provisioning state shall be on a per subscriber basis, and hence the same for all basic service groups. The HLR shall store: - the state of CFU (which shall be one of the valid states listed above) for each applicable eleme
45、ntary basic service group; - the subscription option “notification to the calling patty“ on a per subscriber basis; This subscription option takes one of the following values: - no notification; - notification. - the registration parameter “forwarded-to number“ (possibly including a forwarded-to sub
46、-address) for each applicable elementary basic service group. Note that the value “Active and Quiescent“ of the activation state is required in case of interaction with Operator Determined Barring (see GSM 03.15). Page 21 GSM 03.82 version 5.0.0: December 1996 1.4 State transition model The followin
47、g figure shows the successful cases of transition between the applicable logical states of CFU. The state changes are either caused by actions of the service provider, the mobile user or the network. Note that error cases are not shown in the diagram as they normally do not cause a state change. Add
48、itionally, some successful requests may not cauce a state change. Hence, they are not shown in the diagram. The diagram only shows operations on an elementary basic service group. SS Interaction Active and Operative, Deactivation Figure 1.12: State transition model for CFU 1.5 Transfer of informatio
49、n from HLR to VLR If the provisioning state for CFU is “Provisioned“ then, when the subscriber registers on a VLR, the HLR shall send that VLR information about the logical state of CFU for all relevant elementary basic service groups. If the logical state of CFU is changed while a subscriber is registered on a VLR then for the affected basic service groups, the HLR shall inform the VLR of the new logical state of CFU. STDmETSI GSM 03-82-ENGL L77b 3400855 0152b52 717 Page 22 GSM 03.82 version 5.0.0: December 1996 1.6 Information stored in the VLR For CFU the VL
