1、W 3404583 0078049 014 W Released: July 1, 1993 GSM 02.82 Version: 4.4.2 Date: 9 June, 1993 Work Item No: Key words: European digital cellular telecommunication system (phase 2); CALL OFFERING SUPPLEMENTARY SERVICES ETSI European Telecommunications Standards Institute ETSI Secretariat: Route des Luci
2、oles, F-06921 Sophia Antipolis Cedex . France TP. + 33 92 94 42 00 F. + 33 93 65 47 16 Tx. 47 00 40 F This is an unpublished work the copyright in which vests in the European Telecommunications Standards Institute. All rights reserved. The information contained herein is the property of ETSI and no
3、part may be reproduced or used except as authorised by contract or other written permission. The copyright and the foregoing restriction on reproduction and use extend to all media in which the information may be embodied. . m 3404583 0078050 83b m Page 3 GSM 02.82 . version 4.4.2 : June 1993 CONTEN
4、TS CALL OFFERING SUPPLEMENTARY SERVICES 5 0.1 GENERAL 5 1 CALL FORWARDING UNCONDITIONAL 7 1.1 DEFINiTlON . 7 1.2 DESCRIPTION . 7 1.3 NORMAL PROCEDURES WITH SUCCESSFUL OUTCOME 7 1.4 EXCEPTIONAL PROCEDURES OR UNSUCCESSFUL OUTCOME 10 1.5 ALTERNATE PROCEDURES . 11 1.6 INTERACTIONS WITH OTHER SUPPLEMENTA
5、RY SERVICES . 11 1.7 INTER WORKING CON SIDE RATIONS 13 2 CALL FORWARDING ON MOBILE SUBSCRIBER BUSY . 14 2.1 DEFINITION . 14 2.2 DESCRIPTION . 14 2.3 NORMAL PROCEDURES WITH SUCCESSFUL OUTCOME 14 2.4 EXCEPTIONAL PROCEDURES OR UNSUCCESSFUL OUTCOME 17 2.5 ALTERNATE PROCEDURES . 18 2.6 INTERACTIONS WITH
6、OTHER SUPPLEMENTARY SERVICES . 18 2.7 I NTER WORK1 NG CONS I DE RATIONS 20 3 CALL FORWARDING ON NO REPLY 21 3.1 DEFINITION . 21 3.2 DESCRIPTION . 21 3.3 NORMAL PROCEDURES WITH SUCCESSFUL OUTCOME 21 3.4 EXCEPTIONAL PROCEDURES OR UNSUCCESSFUL OUTCOME 24 3.5 ALTERNATE PROCEDURES . 25 3.6 INTERACTIONS W
7、ITH OTHER SUPPLEMENTARY SERVICES . 25 3.7 INTERWORKING CONSIDERATIONS 26 4 CALL FORWARDING ON MOBILE SUBSCRIBER NOT REACHABLE . 27 4.1 DEFINITION . 27 4.2 DESCRIPTION . 27 4.3 NORMAL PROCEDURES WITH SUCCESSFUL OUTCOME 27 4.4 EXCEPTIONAL PROCEDURES OR UNSUCCESSFUL OUTCOME 30 4.5 ALTERNATE PROCEDURES
8、. 31 4.6 INTERACTIONS WITH OTHER SUPPLEMENTARY SERVICES . 31 4.7 INTERWORKING CONSIDERATIONS 32 Previous page is blank . 3404583 0078053 772 Page 5 GSM 02.82 - version 4.4.2 : June 1993 CALL OFFERING SUPPLEMENTARY SERVICES 0.1 GENERAL This specification describes the supplementary services belonging
9、 to the group CALL OFFERING SUPPLEMENTARY SERVICES. The general aspects, including definitions and recommended provision, of the description of the GSM supplementary services are given in specification GSM 02.04. The group of supplementary services CALL OFFERING SUPPLEMENTARY SERVICES is divided int
10、o four different supplementary services: - - - - Call forwarding unconditional (chapter i); Call forwarding on mobile subscriber busy (chapter 2); Call forwarding on no repiy (chapter 3); Call forwarding on mobile subscriber not reachable (chapter 4); Indication of active Call forwardinq supplementa
11、w service. An indication that a Call forwarding service is currently active and operative on a number will be given to the forwarding party each time an outgoing call is made. There will be one indication for Unconditional call forwarding and another common indication for the Conditional call forwar
12、ding services. Note on the use of the forwarded-to number at reqistration. If the forwarded-to number is a number in the HPLMN country, it may be entered by the served mobile subscriber in three different formats, independent of her actual location, according to the schemes: 1) National (significant
13、) number. 2) National (trunk) prefix plus national (significant) number. 3) International prefix, country code, national (significant) number. Scheme 3) Storage of numbers in this format is mandatory for all GSM PLMN operators. If the forwarded-to number is a number in another country than the HPLMN
14、 country, it shall be entered by the served mobile subscriber, independent of her actual location, according to the following scheme: - International prefix, country code, national (significant) number. Note: The MMI for entering of international prefix is defined in Recs. GSM 02.30 and 02.07. Princ
15、iples for interaction with the Barrinn of Outqoinq Calls supplementary services. Numbers allowed to call according to the Barring of Outgoing call service condition are allowed as forwarded-to numbers for the served mobile subscriber. Numbers not allowed to call according to the Barring of Outgoing
16、call service condition are not allowed as forwarded-to numbers for the served mobile subscriber. For Unconditional Call Forwarding the forwarded leg is treated as an outgoing call from the HPLMN country. Previous page is blank 3404583 0078052 609 Page 6 GSM 02.82 - version 4.4.2 : June 1993 For the
17、Conditional Call Forwarding services the forwarded leg is treated as an outgoing call from the LPLMN (HPLMN of VPLMN) country. Principles for interaction with the Barrinq of Incominq Calls supplementary services. When Barring of all incoming calls is active for the served mobile subscriber - no Call
18、 forwarding services are allowed for her. When Barring of all incoming calls when roaming outside the HPLMN country is active and operative - .e. the served mobile subscriber is roaming outside the HPLMN country, the Conditional Call Forwarding services are not allowed. 3404583 0078053 545 Page 7 GS
19、M 02.82 - version 4.4.2 : June 1993 1 CALL FORWARD1 NG UNCONDITIONAL 1.1 DEFINITION This service permits a called mobile subscriber to have the network send all incoming calls, or just those associated with a specific Basic service group, addressed to the called mobile subscribers directory number t
20、o another directory number. The ability of the served mobile subscriber to originate calls is unaffected. If this service is activated, calls are forwarded no matter what the condition of the termination. 1.2 DESCRIPTION 1.2.1 Descrlptlon The served mobile subscriber can request a different forwarde
21、d-to number for each Basic service group containing a basic service to which she has subscribed. 1.2.2 Appllcablllty to telecommunication services Call forwarding unconditional is applicable to all telecommunication services except Emergency calls and the Short Message Service. 1.2.3 Term In ol ogy
22、A served mobile subscriber is a mobile subscriber of a particular PLMN access who is requesting that calls to her number be forwarded. This subscriber may also be referred to as the forwarding subscriber or the called subscriber. A forwarded-to subscriber is a subscriber to whom the call shall be fo
23、rwarded. 1.3 NORMAL PROCEDURES WITH SUCCESSFUL OUTCOME 1.3.1 Provlslon The supplementary service will be provisioned for all Basic Services subscribed to and to which it is applicable. The service can be offered with one subscription option. The option applies to all Basic services subscribed to. On
24、ly one value can be selected. Subscription options Value Calling subscriber receives notification that the call has been forwarded - NO - Yes 1.3.2 Wlthdrawal The service will be withdrawn at the subscribers request or for administrative reasons. 1.3.3 Reglstratlon The following information has to b
25、e registered in the network: 1. 2. the forwarded-to number, which may be accompanied by a forwarded-to sub-address; information as to whether all calls or all calls of one (or serveral) specific Basic service groups should be forwarded. Page 8 GSM 02.82 - version 4.4.2 : June 1993 If no Basic Servic
26、e code is inserted by the user this is interpreted as All Basic Services. Registration can take place either by the service provider or with an appropriate control procedure by the subscriber. Verification, where possible, of the forwarded-to number should be accomplished before accepting the call f
27、orwarding request. This verification is done by a simple check of the forwarded-to number to see if the number is within the allowed number range. When the mobile subscriber so registers call forwarding unconditional, the network will return notification of acceptance or rejection of the request. Th
28、is notification will include the forwarded- to number to which call forwarding unconditional is registered. 1.3.4 Erasure A previous registration can be erased in either of three ways: Firstiy, the subscriber can specif ically erase a previous registration with an appropriate control procedure. Seco
29、ndly, the subscriber can register information for call forwarding unconditional for the specific Basic service group to another directory number, thus causing the previous registration of call forwarding unconditional to be overridden. Thirdly, all information is erased as a result of withdrawal of
30、the service. 1.3.5 Activation The user shall be allowed to activate Call Forwarding Unconditional (CFU) by e.g. using the MMI command described in GSM 02.30. This activation request may include information of which Basic Service Group) it shall appiy to. If no such information is included the Activa
31、tion request applies to all Basic Service Groups. When receiving an activation request the network shall activate CFU for the Basic Service Groups comprised in the BS group information given by the user against which a CFU forwarded-to- number is registered. The Activation(s) shall be in accordance
32、with the rules set out in GSM 02.04. The user shall receive a notification that CFU has been activated. The supplementary service is also activated for a Basic service group as a result of Registration for that Basic service group. 1.3.6 Deactivation An active CFU can be deactivated in either of two
33、 ways; - Yhe user may deactivate CFU by means of an appropriate control procedure (e.g. as described in GSM 02.30). A deactivation request may contain information of which Basic Service Group(s) it shall apply to. If no such information is included the Deactivation request applies to all Basic Servi
34、ce Groups. When receiving a deactivation request the network shall deactivate CFU for the Basic Service Group) comprised in the BS group information given by the user against which a CFU forwarded-to-number is registered. However, the registered information shall not be erased. The Deactivation(s) s
35、hall be in accordance with the rules set out in GSM 02.04. Even if there is no data stored against a particular Basic Service group comprised in a deactivation request, the request shall be accepted by the network for the other Basic 3404583 0078055 318 Page 9 GSM 02.82 - version 4.4.2 : June 1993 S
36、ervice group(s) included in the information given by the user. - The service is deactivated as a result of Erasure. In the former case, and also in the latter if Erasure is user controlled, the user shall receive a notification of whether her request was accepted or rejected in accordance with the r
37、ules set out in GSM 02.04. 1.3.7 i nvocation If the supplementary service is activated for a Basic service incoming calls for the specified Basic service will be forwarded by network invocation. 1.3.8 Normal operation with successful outcome When call forwarding unconditional is active and operative
38、, incoming calls for the specified Basic Service(s) will be forwarded without being offered to the served mobile subscriber. The forwarded-to subscriber will receive an indication that the call has been forwarded with the cause. The cause, when available, will be the appropriate forwarding condition
39、. When multiple forwarding occurs the reason for forwarding given to the forwarded-to subscriber should relate to the last forwarding subscriber in the chain. When call forwarding unconditional is active and operative, the ability of the served mobile subscriber to originate calls is not affected. H
40、owever, an indication that the call forwarding service is currently active and operative on a number will be given to the forwarding party each time an outgoing call is made. As a subscription option, the served mobile subscriber can request that the calling subscriber receives a notification that t
41、he call has been forwarded. 1.3.11 interrogation Data request The data request procedure enables the mobile subscriber to obtain information about the data stored in the PLMN. After having requested this procedure the network shall return the following information: - in response to a general data re
42、quest the served mobile subscriber should be given a list of all Basic service groups to which call forwarding unconditional is registered, including information whether or not it is active and operative, and the associated forwarded-to num bers; in response to a specific request concerning one part
43、icular Basic service group, the served mobile subscriber should be informed whether or not call forwarding unconditional is registered, including information whether or not it is active and operative for that Basic service group. If CFU is registered, the associated forwarded-to number shall be give
44、n. - 1.3.12 Charging requirements The forwarding subscriber may be charged for the forwarded part of the call. 3404583 0078056 254 W Page 10 GSM 02.82 - version 4.4.2 : June 1993 1.4 EXCEPTIONAL PROCEDURES OR UNSUCCESSFUL OUTCOME 1.4.2 Reglsratlon If the system cannot accept a registration request,
45、the served mobile subscriber should receive a notification that call forwarding unconditional registration was not successful. Possible causes are: - service not subscribed to: - - - insufficient information; - - - - forwarded-to number is invalid directory number: use of an operator access prefix:
46、forwarded-to number is a special service code (e.g. police); forwarded-to number is the directory number of the mobile subscriber herself; conflicting situation with other supplementary services (e.g. incoming call barring has been activated). no basic service provisioned within the basic service gr
47、oup(s). The network is not required to validate information related to the forwarded-to number. 1.4.3 Erasure If the network cannot accept a mobile subscribers request for erasure, cause will be returned to the subscriber, such as: - insufficient information - inconsistent with registration. If the
48、subscriber does not completely specify which call forwarding unconditional request is to be erased, the network will reject the erasure request with appropriate cause. If no Basic Service Code is inserted by the user, CF will be erased from ali Basic Services. 1.4.4. Actlvation If there is no CFU fo
49、rwarded-to-number registered against a Basic Service group, the activation request for that Basic Service group shall be denied. Examples of causes for a not accepted activation request: - service not provisioned - - service not registered conflicting situation with other supplementary services 1.4.5. De activa tion If the network cannot accept a deactivation request, an appropriate cause will be returned to the user, e.g. Service not Active. 1.4.6 invoca tion Within a PLMN or different PLMNs the number of tandem forwarding connections should be limited. The maximum number of tandem f
