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4.4 Exceptional procedures or unsuccessful outcome
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4.5 Alternate procedures
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4.6 Interactions with other Supplementary Services
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4.6.81.3 Connected line identification presentation
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4.6.82.1 Call forwarding unconditional
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4.6.82.2 Call forwarding on mobile subscriber busy
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4.6.82.3 Call forwarding on no reply
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4.7 Interworking consideration
.............................................................................................................................. 16 Annex A (informative): Change history...............................................................................................18 ETSI ETSI TS 122 081 V3.2.0 (2000-06) 5 3G TS 22.081 version 3.2.0 Release 1999 Foreword This Technical Specification has been produced by the 3GPP. The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of this TS, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the specification; ETSI ETSI TS 122 081 V3.2.0 (2000-06) 6 3G TS 22.081 version 3.2.0 Release 1999 0 Scope The present document describes the Supplementary Services belonging to the group Line Identification Supplementary Services. The general aspects, including definitions and recommended provision, of the description of the Supplementary Services are given in 3GPP TS 22.004. The group of Line Identification Supplementary Services is divided into the following four Supplementary Services: CLIP - Calling line identification presentation (clause 1); CLIR - Calling line identification restriction (clause 2); COLP - Connected line identification presentation (clause 3); COLR - Connected line identification restriction (clause 4). Definition of line identity: The line identity is made up of a number of information units: - the subscriber's national ISDN/MSISDN number (MSISDN number is the number stored in the VLR); - the country code; - optionally, subaddress information. The PLMN cannot be responsible for the content of this subaddress. (For definition of the subaddress see ITU-T Recommendation E.164 [3] subclause 11.2). In a full ISDN environment, the line identity shall include all the address information necessary to unambiguously identify a subscriber. The calling line identity is the line identity of the calling party. The connected line identity is the line identity of the connected party. If for the line identity of the calling party or the connected party additional line identification is received (additional calling party/connected party number) in a PLMN this additional line identification shall be used for the presentation purpose of the line identification presentation services. Definition of Presentation and Screening Indicators: In addition to or instead of the line identity, the network may give a Presentation Indicator (PI) and/or a Screening Indicator (SI) to the served subscriber. The following information may be given: - Presentation Indicator showing: a) presentation allowed, or b) presentation restricted, or c) number not available due to interworking; If Presentation Indicator is set to "Presentation Restricted", then the MS can get additional information on the Cause of no CLI, if provided by the network. The Cause of no CLI value may be one of the following : - Unavailable - reject by user - interaction with other services - coin line / pay phone - Screening Indicator showing: ETSI ETSI TS 122 081 V3.2.0 (2000-06) 7 3G TS 22.081 version 3.2.0 Release 1999 a) user provided, verified and passed, or b) user provided, not screened, or c) network provided. If the line identity is that of a PLMN subscriber, then: the national number and the country code shall always be provided by the network; the subaddress shall only be included if it is provided by the user (or user equipment); the screening indicator shall indicate "network provided". 0.1 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.) or non-specific. • 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. • For this Release 1999 document, references to GSM documents are for Release 1999 versions (version 8.x.y). [1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms". [2] GSM 22.004: General on Supplementary Services". [3] ITU-T Recommendation E.164: "Numbering plan for the ISDN era". [4] TR 21.905: " Vocabulary for 3GPP Specifications ". 0.2 Abbreviations Abbreviations used in the present document are listed in GSM 01.04 and TR 21.905 [4]. 1 Calling Line Identification Presentation (CLIP) 1.1 Definition The CLIP Supplementary Service provides the called party with the possibility to receive the line identity of the calling party. 1.2 Description 1.2.1 Description This Supplementary Service provides for the ability to indicate the line identity of the calling party to the called party. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 8 3G TS 22.081 version 3.2.0 Release 1999 The network shall deliver the calling line identity to the called party at call set-up time, regardless of the terminal capability to handle the information. 1.2.2 Applicability to telecommunication services The applicability of this Supplementary Service is defined in GSM 22.004 [2]. 1.3 Normal procedures with successful outcome 1.3.1 Provision This Supplementary Service is provisioned for all Basic Services subscribed to and to which it is applicable, i.e. not provisioned for any subset of these Basic Services. Override category within a PLMN Override category within an ISDN/PLMN. Depending on national regulations, some networks may define categories of subscribers that have the ability to override the presentation restriction (CLIR, clause 2) and have the calling line identity presented (e.g., the police). The ability to have such override category is a national option. Override category between a PLMN and a network providing calling line identification restriction Override category between ISDN/PLMNs. When a call originates in one ISDN/PLMN and terminates in another ISDN/PLMN and the CLIR Supplementary Service is applied, the rules and regulations of the destination network shall apply. For example, the override category may not be applicable in the originating network but may be applicable in the destination network. In this situation, a call with the CLIR Supplementary Service applied can still be overridden in the destination network. The override category is only applicable within the HPLMN country. 1.3.2 Withdrawal The CLIP Supplementary Service shall be withdrawn at the customer's request or for administrative reasons. 1.3.5 Activation The CLIP Supplementary Service is activated as a result of provision. 1.3.6 Deactivation The CLIP Supplementary Service is deactivated as a result of withdrawal. 1.3.7 Invocation The network shall automatically invoke the CLIP Supplementary Service in the call set-up phase. 1.3.8 Normal operation with successful outcome A user who has subscribed to the CLIP Supplementary Service and receives a call shall also receive the line identity of the calling party. In addition to or instead of the calling line identity, the subscriber may be given a Presentation Indicator and/or a Screening Indicator with the relevant information. If provided by the network, the subscriber may also be given some additional information on the Cause of no CLI in case of a presentation restricted. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 9 3G TS 22.081 version 3.2.0 Release 1999 1.3.11 Interrogation Status check The mobile subscriber can request the status of the Supplementary Service and be informed if the service is provided to her. 1.4 Exceptional procedures or unsuccessful outcome If the CLIR Supplementary Service is applicable to the call, then the called PLMN user shall receive an indication that the calling line identity is not available because of restriction. NOTE: See also subclause 1.3.1 (override category). In some interworking situations in which the connection is not completely supported by the sufficient signalling capability, then the called PLMN user shall receive an indication that the calling line identity is not available. For an international call in which the originating network does not provide the calling line identity, then the called PLMN user shall receive an indication that the calling line identity is not available. 1.5 Alternate procedures None identified. 1.6 Interactions with other Supplementary Services 1.6.81.2 Calling line identification restriction The CLIR Supplementary Service shall take precedence over the CLIP Supplementary Service. The CLIP Supplementary Service can take precedence over the CLIR Supplementary Service when the called user has an override category. The availability of the override category as well as the handling of calling line identity parameters for the override category is a national matter. 1.6.82.1 Call forwarding unconditional When a call has been forwarded and the forwarded-to user has been provided with the CLIP Supplementary Service, the forwarded-to user shall receive the number of the original calling user, if this calling user has not subscribed to or invoked the CLIR Supplementary Service. 1.6.82.2 Call forwarding on mobile subscriber busy Same as the interaction with call forwarding unconditional. 1.6.82.3 Call forwarding on no reply Same as the interaction with call forwarding unconditional. 1.6.82.4 Call forwarding on mobile subscriber not reachable Same as the interaction with call forwarding unconditional. 1.6.83.1 Call Waiting If the served mobile subscriber is provisioned with the CLIP service, the notification of an incoming (waiting) call offered to that subscriber shall include the calling line identity, as for a normal call. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 10 3G TS 22.081 version 3.2.0 Release 1999 1.7 Interworking considerations According to national network specific rules, the CLIP Supplementary Services need not be applicable, if at least one of the two parties is not an ISDN or PLMN subscriber. 2 Calling Line Identification Restriction (CLIR) 2.1 Definition The CLIR Supplementary Service enables the calling party to prevent presentation of its line identity to the called party. 2.2 Description 2.2.1 Description The CLIR Supplementary Service is a Supplementary Service offered to the calling party to prevent presentation of the calling party's line identity, to the called party. In the case where the called party has an override category, see subclause 2.4. 2.2.2 Applicability to telecommunications services The applicability of this Supplementary Service is defined in GSM 22.004. 2.3 Normal procedures with successful outcome 2.3.1 Provision This Supplementary Service is provisioned for all Basic Services subscribed to and to which it is applicable, i.e. not provisioned for any subset of these Basic Services. As a service provider option, the CLIR Supplementary Service can be offered with one subscription option permanent (invoked for all relevant calls) or temporary (suppressed by the user on a per call basis). In temporary mode, the subscriber may subscribe to the default values: - presentation restricted: or, - presentation not restricted. The option applies to all BS which are provisioned for this SS. 2.3.2 Withdrawal This Supplementary Service will be withdrawn at the subscriber's request or for administrative reasons. 2.3.5 Activation The CLIR Supplementary Service shall be activated on provision. 2.3.6 Deactivation The CLIR Supplementary Service shall be deactivated on withdrawal. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 11 3G TS 22.081 version 3.2.0 Release 1999 2.3.7 Invocation If subscribed to in the permanent mode, then the network shall automatically invoke the CLIR Supplementary Service for each outgoing call. If subscribed-to in the temporary mode with the default value "presentation restricted", then the network shall automatically invoke the CLIR Supplementary Service for each outgoing call unless CLIR is suppressed by subscriber request at the time of call request. If subscribed-to in the temporary mode with the default value "presentation not restricted", then the network shall only invoke the CLIR Supplementary Service if requested by subscriber at the time of call request. 2.3.8 Normal operation with successful outcome When the CLIR Supplementary Service is invoked, the originating network shall provide the destination network with a notification that the line identity of the calling party is not allowed to be presented to the called party. The originating network may also provide information on the cause of no CLI. If the called party subscribes to the CLIP Supplementary Service and the CLIR Supplementary Service has been invoked, then the called party shall receive an indication that the calling line identity is not available due to restriction. 2.3.11 Interrogation Data request The mobile subscriber can request the data of the Supplementary Service. In response the following information shall be given: - whether the service is provided of not; - if provided which mode is subscribed; - if subscribed-to the temporary mode, which default value. 2.4 Exceptional procedures or unsuccessful outcome If the subscriber has subscribed to the permanent mode and she tries to suppress the invocation of the CLIR Supplementary Service per MMI command during call set-up (i.e. requests that the CLI is displayed), she shall be notified that the suppression has not been performed and the call set-up shall continue. If the user has not subscribed to CLIR Supplementary Service and she tries to invoke it during call set-up per MMI command (i.e. requests that the CLI is not displayed), the call set-up attempt shall be rejected. If the called party has a relevant override category (see subclause 1.3.1), the restriction service will be overridden and the calling line identity will be presented to the called party. 2.5 Alternate Procedures A VPLMN which supports the CLIR service shall ensure that the line identity of a subscriber whose HPLMN does not support the CLIR service shall not be displayed to the called party unless the subscriber wishes so or the called party has CLIR override capability. 2.6 Interactions with other Supplementary Services 2.6.81.1 Calling line identification presentation See subclause 1.6.81.2. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 12 3G TS 22.081 version 3.2.0 Release 1999 2.6.82.1 Call forwarding unconditional No interaction, i.e. when the CLIR Supplementary Service is applicable and invoked for the original calling subscriber, her line identity shall not be presented to the forwarded-to user unless the forwarded-to user has an override category. 2.6.82.2 Call forwarding on mobile subscriber busy Same as the interaction with call forwarding unconditional. 2.6.82.3 Call forwarding on no reply Same as the interaction with call forwarding unconditional. 2.6.82.4 Call forwarding on mobile subscriber not reachable Same as the interaction with call forwarding unconditional. 2.7 Interworking considerations On calls to or via non-ISDNs, it cannot be assured that a calling line identification restriction indication can be carried to the destination network. As a national option the originating network can restrict any information identifying the calling party from being forwarded to the destination network when the CLIR Supplementary Service is applicable. If a destination network receives a calling line identity without any indication of presentation allowed or restricted, the destination network shall act according to its rules and regulations. For inter-network calls, when the CLIR Supplementary Service is invoked, the originating network shall provide the destination network with a notification that the line identity of the calling party is not allowed to be presented to the called party. The originating network may also provide information on the cause of no CLI. NOTE: When the Supplementary Service CLIR is invoked, some network providers may not send the identity of the calling subscriber to other network. 3 Connected Line Identification Presentation (COLP) 3.1 Definition The Connected Line Identification Presentation (COLP) Supplementary Service provides the calling party with the possibility to receive the line identity of the connected party. 3.2 Description 3.2.1 Description This Supplementary Service is not a dialling check but an indication to the calling subscriber of the connected line identity in a full ISDN/PLMN environment, the connected line identity shall include all the information necessary to unambiguously identify the connected party. The network shall deliver the connected line identity to the calling party regardless of the terminal capability to handle the information. 3.2.2 Applicability to telecommunication services The applicability of this Supplementary Service is defined in GSM 22.004. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 13 3G TS 22.081 version 3.2.0 Release 1999 3.3 Normal procedure with successful outcome 3.3.1 Provision This Supplementary Service is provisioned for all Basic Services subscribed to and to which it is applicable, i.e. not provisioned for any subset of these Basic Services. Override category within a PLMN Override category within an ISDN/PLMN. Depending on national regulations, some networks may define categories of subscribers that have the ability to override the presentation restriction (COLR, clause4) and have the connected line identity presented (e.g., the police). The ability to have such an override category is a national option. Override category between a PLMN and a network providing connected line identification restriction. Override category between ISDNs/PLMNs. When a call originates in one ISDN/PLMN and terminates in another ISDN/PLMN and the COLR Supplementary Service is applied, the rules and regulations of the originating network shall apply. The override category is only applicable within the HPLMN country. 3.3.2 Withdrawal The COLP Supplementary Service shall be withdrawn at the customer's request or for administrative reasons. 3.3.5 Activation The COLP Supplementary Service is activated as a result of provision. 3.3.6 Deactivation The COLP Supplementary Service is deactivated as a result of withdrawal. 3.3.7 Invocation The network shall automatically invoke the COLP Supplementary Service on each outgoing call made by the served user. 3.3.8 Normal operation with successful outcome The calling subscriber shall at the end of the call set-up phase receive the connected line identity. In addition to or instead of the connected line identity the subscriber may be given a Presentation Indicator and/or a Screening Indicator with the relevant information. 3.3.11 Interrogation Status check The mobile subscriber can request the status of the Supplementary Service and be informed if the service is provided to her. 3.4 Exceptional procedures or unsuccessful outcome If the COLR Supplementary Service is applicable to the call, the served user shall receive an indication that the connected line identity is not available due to restriction. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 14 3G TS 22.081 version 3.2.0 Release 1999 NOTE: See also subclause 3.3.1 (override category). In some interworking situations in which the connection is not completely supported by sufficient signalling capability, the served user shall receive an indication that the connected line identity is not available. For an international call in which the destination network does not provide the connected line identity, then the served user shall receive an indication that the connected line identity is not available. 3.5 Alternate procedures None identified. 3.6 Interactions with other Supplementary Services 3.6.81.4 Connected line identification restriction The COLR Supplementary Service shall take precedence over the COLP Supplementary Service. The COLP Supplementary Service can take precedence over the COLR Supplementary Service when the served user has an override category. The availability of the override category as well as the handling of connected line identity parameters for the override category is a national option. 3.6.82.1 Call forwarding unconditional If the served (forwarding) user selects the option that the calling user is not notified of call forwarding, then the calling user shall receive no forwarding notification, and the calling user shall not receive the connected line identity when the call is answered, unless the calling user has override capability. Otherwise, no interaction. 3.6.82.2 Call forwarding on mobile subscriber busy Same as the interaction with call forwarding unconditional. 3.6.82.3 Call forwarding on no reply Same as the interaction with call forwarding unconditional. 3.6.82.4 Call forwarding on mobile subscriber not reachable Same as the interaction with call forwarding unconditional. 3.6.84.1 Multiparty Multiparty controller: no impact, i.e. neither Supplementary Service shall affect the operation or the other Supplementary Service. Remote parties: they shall not receive the COLP Supplementary Service information of parties being added to the conference. 3.7 Interworking considerations According to national network specific rules the COLP Supplementary Service need not be applicable, if at least one of the two parties is not an ISDN or GSM PLMN subscriber. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 15 3G TS 22.081 version 3.2.0 Release 1999 4 Connected Line Identification Restriction (COLR) 4.1 Definition The COLR Supplementary Service enables the connected party to prevent presentation of its line identity to the calling party. 4.2 Description 4.2.1 Description The COLR Supplementary Service is a Supplementary Service offered to the connected party to prevent presentation of the connected line identity, to the calling party. In the case where the calling party has an override category, see subclause 4.4. 4.2.2 Applicability to telecommunications services The applicability of this Supplementary Service is defined in GSM 22.004. 4.3 Normal procedures with successful outcome 4.3.1 Provision This Supplementary Service is provisioned for all Basic Services subscribed to and to which it is applicable, i.e. not provisioned for any subset of these Basic Services. 4.3.2 Withdrawal This Supplementary Service will be withdrawn at the subscriber's request or for administrative reasons. 4.3.5 Activation The COLR Supplementary Service shall be activated on provision. 4.3.6 Deactivation The COLR Supplementary Service shall be deactivated on withdrawal. 4.3.7 Invocation The network shall automatically invoke the COLR Supplementary Service for each incoming call at call set-up phase. 4.3.8 Normal operation with successful outcome If the calling party subscribes to the COLP Supplementary Service and the COLR Supplementary Service has been invoked, then the calling party shall receive an indication that the connected line identity is not available due to restriction. When the COLR Supplementary Service is invoked, the destination network shall provide the originating network with a notification that the line identity of the connected party is not allowed to be presented to the calling party. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 16 3G TS 22.081 version 3.2.0 Release 1999 4.3.11 Interrogation Status check The mobile subscriber can request the status of the Supplementary Service and be informed if the service is provided to her. 4.4 Exceptional procedures or unsuccessful outcome If the calling party has a relevant override category (see subclause 3.3.1) the restriction service will be overridden and the connected line identity will be presented to the calling party. 4.5 Alternate procedures A VPLMN which supports the COLR service shall ensure that the line identity of a subscriber whose HPLMN does not support the COLR service shall not be displayed to the calling party unless the calling party has COLR override capability. 4.6 Interactions with other Supplementary Services 4.6.81.3 Connected line identification presentation See subclause 3.6.81.4. 4.6.82.1 Call forwarding unconditional If a forwarded-to user subscribes to the COLR Supplementary Service, then the forwarded-to user's line identity shall not be provided with the notification that the call has been forwarded. A calling user that subscribes to the COLP Supplementary Service and who has override capability shall not be able to receive the forwarded-to user's line identity as part of the diverting notification information, but can invoke the COLP Supplementary Service with override in order to receive the connected line identity when the call is answered. 4.6.82.2 Call forwarding on mobile subscriber busy Same as the interaction with call forwarding unconditional. 4.6.82.3 Call forwarding on no reply Same as the interaction with call forwarding unconditional. 4.6.82.4 Call forwarding on mobile subscriber not reachable Same as the interaction with call forwarding unconditional. On calls from or via non-ISDNs, it cannot be assured that a connected line restriction indication can be carried to the originating network. As a national option, the destination network can restrict any information identifying the connected party from being returned to the originating network when the COLR Supplementary Service is applicable. If an originating network receives a connected line identity without any indication of presentation allowed or restricted, the originating network shall act according to its rules and regulations. For inter-network calls, when the COLR Supplementary Service is invoked, the destination network shall provide the originating network with a notification that the line identity of the connected party is not allowed to be presented to the calling party. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 17 3G TS 22.081 version 3.2.0 Release 1999 NOTE: When the COLR Supplementary Service is invoked, some network providers may not send the identity of the connected customer to other network providers. ETSI ETSI TS 122 081 V3.2.0 (2000-06) 18 3G TS 22.081 version 3.2.0 Release 1999 Annex A (informative): Change history Change history TSG SA# Spec Versi on CR <Phase> New Version Subject/Comment Jun 1999 GSM 02.81 7.0.0 Transferred to 3GPP SA1 SA#04 22.081 3.0.0 SA#05 22.081 3.0.0 001 R99 3.0.1 Editorial update of references for GSM/3GPP use. SA#06 22.081 3.0.0 002 R99 3.0.1 Editorial update to TS 22.081 in order to include 3G systems SA#06/07 22.081 3.0.1 R99 3.1.0 Editorial update of specification SP-08 22.081 3.1.0 003 R99 3.2.0 Access dependent services 19 ETSI ETSI TS 122 081 V3.2.0 (2000-06) 3G TS 22.081 version 3.2.0 Release 1999 History Document history V3.1.0 February 2000 Publication V3.2.0 June 2000 Publication
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2 References
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3 Definitions and abbreviations
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4 Description of Optimal Routing
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5 Functional requirements
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5.1 General
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5.2 Normal operation
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5.2.1 A is a fixed subscriber or a mobile subscriber who may not benefit from OR
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5.2.2 A is a mobile subscriber who may benefit from OR
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5.2.2.1 Description of the call routing
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5.2.2.2 Call scenarios handled in OR Phase 1
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5.3 Exceptional procedures or unsuccessful outcome
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5.3.1 Non-support of SOR in the VPLMN of the caller
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5.3.2 Non-support of SOR in the HPLMN of the B subscriber
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5.3.3 Non support of SOR in the VPLMN of the B subscriber
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5.3.4 Calls to special mobile network numbers
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6 Interactions of Optimal Routing with Supplementary Services
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6.1 Call Forwarding
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6.2 Call Barring
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6.3 Call Transfer
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6.4 Call Deflection
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6.5 Advice of Charge
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7 Interactions of Optimal Routing with Operator Determined Barring (ODB)
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8 Interactions of Optimal Routing with CAMEL
.....................................................................................14 Annex A: Change history ..............................................................................................................................15 History..............................................................................................................................................................16 (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 4 3G TS 22.079 version 3.0.1 Foreword This Technical Specification has been produced by the 3GPP. The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of this TS, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version 3.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 Indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the specification; (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 5 3G TS 22.079 version 3.0.1 1 Scope This Stage 1 description of the first phase of Support of Optimal Routing (SOR): - compiles the basic service requirements for SOR; - describes the interactions for Supplementary Services (SS) in order to cater for SOR; - refers to modifications to network features required by SOR. This specification does not address the following: - There is no need for optimisation of the routing of calls originally directed to a fixed network subscriber, because the physical address of a fixed network terminating line cannot differ from its logical address. - SOR in non-PLMNs is not a subject of this TS, but might be possible by bilateral arrangement between PLMN operators and those non-PLMN operators. The purpose of SOR is to reduce the number of unnecessary inter-PLMN call legs. The first phase of SOR applies to: - OR for the benefit of the B party i.e. Mobile terminated calls with late call forwarding to the home or visited country (scenarios 1 and 2), and optionally; - OR for the benefit of the A party, e.g. Mobile to mobile calls where both mobile subscribers are in the same country (scenarios 3 to 10). The complete set of scenarios included in the phase 1 of OR is presented in the paragraph for normal procedures. All other scenarios are excluded from Phase 1 of OR. Note that Optimal Routing is applicable to national roaming situations, that is to calls directed to a mobile subscriber roaming in her home country, but registered in a PLMN different from her HPLMN. All further call scenarios, including multiple call forwarding, are left to subsequent phases of SOR. Subsequent phases of SOR shall be backwards compatible with this first phase. 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.) or non-specific. • 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. • For this Release 1999 document, references to GSM documents are for Release 1999 versions (version 8.x.y). [1] GSM 01.04: "Digital cellular telecommunication system (Phase 2+); Abbreviations and acronyms". [2] TR 21.905: "Vocabulary for 3GPP Specifications". (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 6 3G TS 22.079 version 3.0.1 3 Definitions and abbreviations Administrative PLMN: The complete set of all functional entities normally regarded as a single PLMN. Basic OR : Routeing of a call by the direct route when no forwarding occurs. Direct route: A call uses the direct route if it is routed from the serving network of the original calling party to the serving network of the ultimate called party without any intermediate PLMN. HPLMN route: A call uses the HPLMN route if the destination is deduced from the MSISDN of the called party. This forces the call to be routed via the HPLMN of the called party. HPLMN leg: The HPLMN leg is that part of the HPLMN route from the IPLMN to the HPLMN of the called party. IPLMN: An IPLMN is a PLMN which interrogates the HPLMN of a called party in order to determine the whereabouts of that party. Early Call Forwarding : Early Call Forwarding is Call Forwarding performed from the IPLMN before the call has been extended to the VPLMN of the forwarding subscriber (i.e. Call Forwarding Unconditional and Conditional Call Forwarding on Not Reachable known at the IPLMN before extension of the call) Functional PLMN: For the purposes of this description the Administrative PLMN is divided into functional PLMNs that represent different aspects of the Optimal Routeing functionality. Late Call Forwarding: Late Call Forwarding is Call Forwarding performed after the call has been extended to the VPLMN of the forwarding subscriber (i.e. Conditional Call Forwarding on Busy, Conditional Call Forwarding on No Reply and Conditional Call Forwarding on Not Reachable detected in the VPLMN of the forwarding subscriber). Late Call Forwarding may be invoked in the IPLMN or in the VPLMN of the forwarding subscriber. Special mobile network number: For the purposes of this description special mobile network numbers are numbers belonging logically to a PLMN but not to a mobile subscriber. Examples are the customer service number or value added service numbers. Abbreviations are given in GSM 01.04 [1] and TR 21.905 [2]. 4 Description of Optimal Routing Support of Optimal Routing (SOR) is a network feature which enables the calls directed to a mobile subscriber to be routed directly to the mobile subscriber's actual location, or to her forwarded-to destination (instead of via the HPLMN or in the case of Late Call Forwarding via the VPLMN). The IPLMN handling the call shall decide whether or not to optimise the routing of the call taking into account information provided by the called mobile subscriber's HPLMN. For given subscribers, as a network option, the HPLMN may permit or deny OR on a per call basis. 5 Functional requirements 5.1 General SOR shall be provided for all circuit switched Telecommunication Services, except emergency calls, Dedicated PAD and Dedicated Packet Access (GPRS is for further study). The network feature shall be applied automatically for all calls except for those calls for which the HPLMN of the called party denies the optimal routing. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 7 3G TS 22.079 version 3.0.1 5.2 Normal operation In the first phase of SOR, the routes of calls will be optimised for the cases of OR being performed within a country or towards the country where the call would have been routed normally. Under all other circumstances, the basic call routing is applied: - If the IPLMN detects that basic OR cannot be applied, the IPLMN routes the call according to the dialled number. - If the IPLMN detects that OR for Late Call Forwarding cannot be applied, the Call Forwarding will be performed in the VPLMN of the forwarding subscriber. If the serving network of the ultimate destination supports SOR, the serving network of the caller shall be able to indicate to the network visited by the ultimate destination that the call has been optimally routed and to indicate the originating PLMN of the optimally routed leg. The complete set of scenarios included in phase 1 of SOR is described below. The notation used for the scenario diagrams is defined in figure 1. T raffic route T raffic route of basic G SM routeing, not used for OR Output of call record inform ation Interrogation Functional PLM N (e.g. IPLM N, VPLM N-B) Adm inistrative PLM N, w hich m ay include tw o functional PLM Ns C all Attem pt Figure 1: Notation used in scenario diagrams If one of those scenarios occurs, SOR shall be invoked. The assumptions taken are the following : - A subscriber A sets up a call to a mobile subscriber B, who may have forwarded her calls to a subscriber C. - The C subscriber may be either a fixed subscriber or a mobile subscriber. If C is a mobile subscriber, the location of C taken into account in the following paragraphs is the location of HPLMN- C. 5.2.1 A is a fixed subscriber or a mobile subscriber who may not benefit from OR As the originating network does not have the ability to interrogate the HPLMN of the B subscriber, the normal call handling is applied. Once the HPLMN of the B subscriber has the control of the call, the call may be optimised in the case of a forwarded call towards a party located in the Home Country of the B subscriber or in the country visited by the B subscriber. NOTE: - A may be in any country. - In the two following cases, the IPLMN is HPLMN-B. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 8 3G TS 22.079 version 3.0.1 IPLM N HPLM N-B VPLM N-B A Country Z Country Y C Call record: Call forw arding record OR flag Country X Scenario 1: OR for Late Call Forwarding, C is in the same country as HPLMN-B NOTE: Call records shown in the figure are only for information IPLM N HPLM N-B VPLM N-B A Country Z Country Y C Call record: Call forw arding record OR flag Country X Scenario 2: OR for Late Call Forwarding, C is in the same country as VPLMN-B NOTE: Call records shown in the figure are only for information 5.2.2 A is a mobile subscriber who may benefit from OR 5.2.2.1 Description of the call routing If A sets up a call to B, then the originating PLMN shall interrogate the HPLMN of the mobile subscriber B in order to know how to route the call. If B is registered in the same country as A, then the call shall be routed directly to B as described below. If B has activated a Call Forward to a destination located in the Home Country of B or in the country where A is registered and this leads to the invocation of Early Call Forwarding, then the call shall be routed directly from A to the forwarded-to-party. In any other cases, the call shall be routed to the mobile subscriber B via HPLMN(B). If the call cannot be completed, the originating PLMN shall receive an indication of the reason of the failure of the call completion. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 9 3G TS 22.079 version 3.0.1 Thereafter, if the mobile subscriber B has activated a Conditional Call Forward to a destination located in her Home Country or to a destination in the country where A is registered and this leads to the invocation of Late Call Forwarding, then the originating PLMN shall route the call directly to the forwarded-to-party. The remaining leg of the call from the intermediate point to the ultimate destination may be optimally routed. 5.2.2.2 Call scenarios handled in OR Phase 1 In the following scenarios, the IPLMN is VPLMN-A. 1) The call from the A subscriber to the B subscriber is completed (Basic OR) a) B is located in the same country as A VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A B 1 2 3 4 5 6 Call record: MO record (Dialled nmb, real destination, OR flag) Call record: MT record (OR flag) Scenario 3: BASIC OR, B in the same country as A NOTE: Call records shown in the figure are only for information b) B is located in her Home Country (Network usage optimization) (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 10 3G TS 22.079 version 3.0.1 VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A B 1 2 3 4 5 6 Call record: MO record (Dialled nmb, real destination, OR flag) Call record: MT record (OR flag) Scenario 4: BASIC OR, B in her home country NOTE: Call records shown in the figure are only for information 2) The call set up by the subscriber A is being forwarded to a C party 2.1) Early Call Forward NOTE: for the two following scenarios, the location of B is not relevant. a) the C party is in the same country as the A subscriber, but different from HPLMN B country. VPLMN-A IPLMN Country Y Country X HPLMN-B VPLMN-B A C 1 2 3 4 5 Any country Call record: MO record (Dialled nmb, real destination, OR flag) Call record: Call forwarding record (OR flag) Scenario 5: Early CF, C in the same country as A NOTE: Call records shown in the figure are only for information. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 11 3G TS 22.079 version 3.0.1 b) the C party is in the same country as HPLMN-B VPLMN-A IPLM N Country Y Country X HPLMN-B VPLMN-B A 1 2 3 4 Any country Call record: MO record (Dialled nmb, real destination, OR flag) Call record: Call forwarding record (OR flag) C 5 Scenario 6: Early CF, C in the same country as HPLMN-B NOTE: Call records shown in the figure are only for information 2.2) Late Call Forward a) B and C are in the same country as A VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A C 1 2 5 6 Call record: MO record (Dialled nmb, real destination, OR flag) Call record: Call forwarding record (OR flag) 3 4 Scenario 7: BASIC OR + OR for Late Call Forwarding, B in the same country as A, C in the same country as A NOTE: Call records shown in the figure are only for information (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 12 3G TS 22.079 version 3.0.1 b) B is in the same country as A and C is in the same country as HPLMN-B VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A C 1 2 5 6 Call record: MO record (Dialled nm b, real destination, OR flag) Call record: C all forw arding record (OR flag) 3 4 Scenario 8: BASIC OR + OR for Late Call Forwarding, B in the same country as A, C in the same country as HPLMN-B NOTE: Call records shown in the figure are only for information c) B is in her home country and C is in the same country as A VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A C 1 2 5 6 Call record: MO record (Dialled nm b, real destination, O R flag) Call record: C all forw arding record (OR flag) 3 4 Scenario 9: BASIC OR + OR for Late Call Forwarding, B in the same country as HPLMN-B, C in the same country as A NOTE: Call records shown in the figure are only for information d) B and C are in the country of HPLMN-B (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 13 3G TS 22.079 version 3.0.1 VPLM N-A IPLM N Country Y Country X HPLM N-B VPLM N-B A C 1 2 5 6 Call record: MO record (Dialled nm b, real destination, OR flag) Call record: Call forwarding record (OR flag) 3 4 Scenario 10: BASIC OR + OR for Late Conditional Call Forwarding, B in the same country as HPLMN- B, C in the same country as HPLMN-B NOTE: Call records shown in the figure are only for information. 5.3 Exceptional procedures or unsuccessful outcome 5.3.1 Non-support of SOR in the VPLMN of the caller If subscriber A roams into a network not supporting OR, she may not benefit from OR and only scenario 1 and scenario 2 of SOR are supported. 5.3.2 Non-support of SOR in the HPLMN of the B subscriber If the HPLMN of the called party does not support SOR, SOR cannot be invoked and the route of the call as far as the called party’s VPLMN cannot be optimised (the call would normally be routed via the HPLMN of the called party). The same procedure shall be followed if the HPLMN operator denies OR on a subscriber basis. 5.3.3 Non support of SOR in the VPLMN of the B subscriber If a subscriber whose HPLMN supports SOR registers in a VPLMN which does not support SOR, only the cases of Early Forwarded calls may be optimised. 5.3.4 Calls to special mobile network numbers If the called number is a special mobile network number of the HPLMN, the HPLMN has to guarantee that the call terminates at its correct destination. This can be achieved by denying OR for this call by sending an appropriate error cause or by implementing a special handling. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 14 3G TS 22.079 version 3.0.1 6 Interactions of Optimal Routing with Supplementary Services No Interaction unless it is stated differently below. 6.1 Call Forwarding Interactions between SOR and Call Forwarding are dealt with in clause 5.0. 6.2 Call Barring Outgoing Call Barring services are applied according to the dialled number. Barring of Incoming calls when Roaming outside the HPLMN country will prevent calls to a mobile subscriber who has roamed outside her HPLMN country even if OR would result in no chargeable roaming leg. The existing interactions between Call Forwardings and Call Barrings are not changed by the introduction of OR. 6.3 Call Transfer A transferred call is considered as a set of two separate calls which may be separetely optimally routed. Optimal Routing shall not be invoked as a result of the invocation of Call Transfer. 6.4 Call Deflection A deflected call is considered as a late forwarded call and as such may be optimally routed. 6.5 Advice of Charge Depending on call scenarios, AoC may not work properly. 7 Interactions of Optimal Routing with Operator Determined Barring (ODB) The principles for the interaction between operator determined barring and SOR are the same as those for the interaction between Supplementary Service Call Barring and SOR. If CAMEL has to be applied to the Mobile Originating part of the call and if CAMEL modifies the destination of the call, the OR applies to any destination introduced by CAMEL. If CAMEL has to be applied to the Mobile Terminating part of the call or a forwarding leg, the modified destination is treated for optimal routeing in the same way as a forwarded-to number. If Barring services are also applicable to the call then they have to be handled first together with CAMEL before SOR is applied. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.079 V3.0.1 (1999-10) 15 3G TS 22.079 version 3.0.1 Annex A: Change history Change history TSG SA# Spec Versi on CR <Phase> New Version Subject/Comment Jun 1999 GSM 02.79 7.0.0 Transferred to 3GPP SA1 SA#04 22.079 3.0.0 SA#05 22.079 3.0.0 001 R99 3.0.1 Editorial update of references for GSM/3GPP use. (3G TS 22.079 version 3.0.1 Release 1999) ETSI TS 122 079 V3.0.1 (2000-01) ETSI 16 ETSI ETSI TS 122 079 V3.0.1 (2000-01) (3G TS 22.079 version 3.0.1 Release 1999) History Document history V3.0.1 January 2000 Publication
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2 References
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3 Definitions and Abbreviations
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3.1 Definitions
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3.2 Abbreviations
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4 Description
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4.1 General Description
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4.2 Applicability to telecommunication services
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5 Normal Procedures with successful outcome
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5.1 Provision
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5.2 Withdrawal
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5.3 Registration
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5.4 Erasure
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5.5 Activation
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5.6 Deactivation
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5.7 Invocation
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5.8 Interrogation
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5.9 Normal Operation
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5.10 Charging requirements
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6 Exceptional procedures or unsuccessful outcome
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6.1 Invocation and operation
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7 Interactions with other supplementary services
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7.1 Calling Line Identification Presentation (CLIP)
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7.2 Calling Line Identification Restriction (CLIR)
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7.3 Connected Line Identification Presentation (COLP)
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7.4 Connected Line Identification Restriction (COLR)
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7.5 Call Forwarding Unconditional (CFU)
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7.6 Call Forwarding on mobile subscriber Busy (CFB)
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7.7 Call Forwarding on No Reply (CFNRy)
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7.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc)
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7.9 Call Deflection (CD)
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7.10 Call Waiting (CW)
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7.11 Call Hold (CH)
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7.12 Multi-party (MPTY)
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7.13 Closed User Group (CUG)
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7.14 Advice of Charge (AoC)
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7.15 Barring of All Outgoing Calls (BAOC)
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7.16 Barring of all Outgoing International Calls (BOIC)
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7.18 Barring of All Incoming Calls (BAIC)
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7.19 Barring of Incoming Calls when roaming outside the home PLMN country (BIC-Roam)
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7.20 Explicit Call Transfer (ECT)
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7.21 Completion of Calls to Busy Subscriber (CCBS)
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7.22 Support of Private Numbering Plan (SPNP)
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7.23 Multiple Subscriber Profile (MSP)
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8 Interactions with Customized Applications for Mobile network Enhanced Logic (CAMEL);
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9 Interworking Considerations
..................................................................................................................12 Annex A (informative): Deviations to the ISDN service Call Deflection...................................................13 Annex B: Change history ..............................................................................................................................13 History..............................................................................................................................................................14 (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 5 3G TS 22.072 version 3.0.1 Foreword This Technical Specification has been produced by the 3GPP. The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of this TS, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version 3.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 Indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the specification; (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 6 3G TS 22.072 version 3.0.1 1 Scope Call Deflection (CD) enables the served mobile subscriber to respond to an incoming call offered by the network by requesting redirection of this call to another number specified in the response. The CD supplementary service can only be invoked before the connection is established by the served mobile subscriber, i.e. in response to the offered call, or during the period that the served subscriber is being informed of the call. The served subscriber’s ability to originate calls is unaffected by the CD supplementary service. 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.) or non-specific. • For a specific reference, subsequent revisions do not apply. • For a non-specific reference, the latest version applies. • For this Release 1999 document, references to GSM documents are for Release 1999 versions (version 8.x.y). [1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and acronyms". [2] TS 22.004: "General on supplementary services". [3] TS 22.030: "Man-Machine Interface (MMI) of the Mobile Station (MS)". [4] TS 22.085: "Closed User Group (CUG) Supplementary Services - Stage 1 [5] TR 21.905: "Vocabulary for 3GPP Specifications". [6] TS 22.078: "CAMEL Phase 3; Stage 1". 3 Definitions and Abbreviations 3.1 Definitions served subscriber: The mobile subscriber to whom the CD supplementary service is provided. subscriber A: The calling subscriber in a call which is subject to diversion. The subscriber A may be a subscriber of any network. deflected-to subscriber: A subscriber to whom the call is redirected as a result of the CD supplementary service. The deflected-to subscriber may be a subscriber of any network. (call) forwarding: A general term applied to any functionality whereby a call is redirected automatically by the network to another user. The forms of forwarding are: unconditional, busy, no reply and not reachable. diversion: A general term which includes all forms of call forwarding and call deflection whereby calls are redirected by the user instead of being answered. 3.2 Abbreviations For the purposes of this TS the following abbreviations apply, in addition, abbreviations used in this TS are listed in GSM 01.04 [1] and TR 21.905 [5]. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 7 3G TS 22.072 version 3.0.1 CD Call Deflection 4 Description 4.1 General Description The CD Supplementary Service enables the served mobile subscriber to respond to an incoming call offered by the network by requesting redirection of this call to another number specified in the response. The CD supplementary service can only be invoked before the connection is established by the served mobile subscriber, i.e. in response to the offered call during the period that the served subscriber is being informed of the call. The served subscriber’s ability to originate calls is unaffected by the CD supplementary service. A maximum number of diversions is permitted for each call with an upper limit of five diversions. When counting the number of diversions, all types of diversions are included. As an network operator option the maximum number of diversions shall be in the range of one to five diversions per call. If the limit of successive diversions of a call is already reached an unsuccessful call setup indication is sent backward to the network originating the call. The invocation of Call Deflection can either be an automatic response from the mobile station to the offered call (use pre-programmed information) or may be the result of an action by the served subscriber. The mobile station related procedures to pre-program and display the deflected-to number is out of the scope of this specification. If the CD service is provisioned and there is no service violation, the request will be accepted, the connection to the served mobile station will be released (with an appropriate notification) and a call towards the deflection-to subscriber will be established. 4.2 Applicability to telecommunication services The applicability of this supplementary service is defined in TS 22.004 [2]. 5 Normal Procedures with successful outcome 5.1 Provision The supplementary service will be provisioned for all Basic Services subscribed to and to which it is applicable. The service can be offered with several subscription options. Options apply to all Basic services subscribed to. For each subscription option, only one value can be selected. Subscription option: Value Calling subscriber receives notification that her call has been deflected - Yes - No MSISDN of the served subscriber can be presented to the deflected-to subscriber - Yes - No (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 8 3G TS 22.072 version 3.0.1 5.2 Withdrawal The supplementary service will be withdrawn at the subscriber's request or for service provider reasons. 5.3 Registration Not applicable. 5.4 Erasure Not applicable. 5.5 Activation Within the network the service is activated for the whole subscription period. This supplementary service shall be activated by the service provider as a result of provision. NOTE: No activation/deactivation procedure is needed at the user-network interface. 5.6 Deactivation This supplementary service shall be deactivated by the service provider as a result of withdrawal. 5.7 Invocation The CD supplementary service shall be invoked by the served mobile subscriber by use of a control procedure as described in TS 22.030 [3]. 5.8 Interrogation Not applicable. 5.9 Normal Operation The network offers incoming calls to the served mobile subscriber according to the normal procedure. The served subscriber can respond to the incoming call offered normally or by invoking the CD supplementary service with an appropriate message. This appropriate message will contain the call deflection request and the deflected-to number. This deflected-to number may be accompanied by a deflected-to subaddress. Two different cases of the CD invocation can be distinguished: - The invocation can be either an automatic response from the mobile station to the offered call (using pre- programmed information at the mobile station) or - may be the result of an action by the served subscriber. If the CD supplementary service is invoked and the served mobile subscriber has subscribed to the service, the network performs the call deflection towards the indicated deflected-to number and clears the call to the called (served) mobile subscriber with a positive acknowledgement. As a subscription option, the served mobile subscriber can request that the subscriber A receives a notification that the call has been deflected. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 9 3G TS 22.072 version 3.0.1 The deflected-to subscriber shall receive an indication that the CD supplementary service has been invoked on the call, i.e. that call has been deflected. Depending on the value of the served subscribers subscription option, the deflected-to subscriber may also receive the MSISDN of the served subscriber. When multiple diversions occurs the reason for diversion and the MSISDN given to the deflected-to subscriber should relate to the last diverting subscriber (e.g. the subscriber who has invoked the CD supplementary service). When calls are diverted once, i.e. due to a single invocation of the CD supplementary service, the following information shall be given to subscriber A based on the value of the served mobile subscriber’s subscription option "calling subscriber receives notification that the call has been deflected": - if the value of the subscription option is "no", then no information shall be sent to subscriber A; - if the value of the subscription option is "yes ", then an indication that the call is being deflected shall be sent to subscriber A. 5.10 Charging requirements The deflecting subscriber may be charged for the deflected part of the call. 6 Exceptional procedures or unsuccessful outcome 6.1 Invocation and operation If a mobile subscriber tries to invoke the CD supplementary service while not subscribed to or the network operator cannot provide the CD supplementary service for some other reasons, an indication shall be provided to the mobile subscriber to notify her with the reason of failure. Possible causes for rejection include: - service not subscribed to; - deflected-to number invalid; - deflected-to number is barred; - use of an operator access prefix; - insufficient information; - deflected-to number is a special service code (see note 1); - deflected-to number is served mobile subscriber's number (see note 2); - the number of diversions has reached the upper limit; - supplementary services incompatibility; NOTE 1: Network operators may prevent a served subscriber from invoking the CD supplementary service when the number specified for the deflected-to subscriber has special significance, e.g. emergency services, operator services. The identification of such numbers is outside the scope of this standard. NOTE 2: The network can only check the deflected-to number against the Basic MSISDN of the served subscriber. If the deflected call cannot be completed to the deflected-to subscriber the network shall clear the call towards the subscriber A and notify the subscriber A of the rejection. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 10 3G TS 22.072 version 3.0.1 7 Interactions with other supplementary services 7.1 Calling Line Identification Presentation (CLIP) When a call has been deflected and the deflected-to subscriber has been provided with the CLIP supplementary service, the deflected-to subscriber shall receive the number of the subscriber A unless the CLIR supplementary service is invoked for the subscriber A. 7.2 Calling Line Identification Restriction (CLIR) No impact, i.e. when the CLIR supplementary service is applicable and invoked for subscriber A, her line identity shall not be presented to the deflected-to subscriber unless the deflected-to subscriber has an override category. 7.3 Connected Line Identification Presentation (COLP) If the served (deflecting) subscriber selects the option that the subscriber A is not notified of call deflection, then the subscriber A shall not receive the connected line identity when the call is answered, unless the subscriber A has override capability. Otherwise, no impact. 7.4 Connected Line Identification Restriction (COLR) No impact. 7.5 Call Forwarding Unconditional (CFU) No impact. 7.6 Call Forwarding on mobile subscriber Busy (CFB) No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. NOTE: If the subscriber is not network determined user busy, then the CD supplementary service or the call forwarding on mobile subscriber busy supplementary service by indicating UDUB can be invoked, depending on the response from the served mobile subscriber. 7.7 Call Forwarding on No Reply (CFNRy) No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. NOTE: If the network indicates the arrival of an incoming call to the served mobile subscriber, then the CD supplementary service, or the call forwarding on no reply supplementary service can be invoked, depending on the response, or lack of response, from the served mobile subscriber. 7.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc) No impact, 7.9 Call Deflection (CD) Not applicable. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 11 3G TS 22.072 version 3.0.1 7.10 Call Waiting (CW) When receiving the call waiting indication, the served mobile subscriber can invoke the CD supplementary service. 7.11 Call Hold (CH) No impact 7.12 Multi-party (MPTY) No impact 7.13 Closed User Group (CUG) Same as the interaction between CUG and the call forwarding supplementary services as defined in TS 22.085 [4]. 7.14 Advice of Charge (AoC) No impact NOTE: The Advice of Charge service does not provide any information about the charge of the deflected leg of the call to the deflecting subscriber. 7.15 Barring of All Outgoing Calls (BAOC) If the served subscriber has Barring of all outgoing calls active and operative the invocation of the CD supplementary service shall be rejected. 7.16 Barring of all Outgoing International Calls (BOIC) If the served subscriber has barring of all outgoing international calls active and operative, any invocation of the CD supplementary service to a number not allowed by the barring program shall be rejected. 7.17 Barring of all Outgoing International Calls except those direct to the Home PLMN Country (BOIC-exHC) If the served subscriber has barring of all outgoing international calls except those direct to the HPLMN Country active and operative, any invocation of the CD supplementary service to a number not allowed by the barring program shall be rejected. 7.18 Barring of All Incoming Calls (BAIC) No impact. 7.19 Barring of Incoming Calls when roaming outside the home PLMN country (BIC-Roam) No impact (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 12 3G TS 22.072 version 3.0.1 7.20 Explicit Call Transfer (ECT) No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. NOTE: Where a network supports the option to transfer a call for which the connection has been established, to a user to which the connection has not yet been established, the transferred call can be deflected if this second subscriber invokes the CD supplementary service. 7.21 Completion of Calls to Busy Subscriber (CCBS) A recall resulting from the completion of calls to busy subscribers supplementary service shall not be deflected. Subscriber A: If a call to the called subscriber (served CD subscriber) is deflected (by the served CD subscriber) to another subscriber by the CD supplementary service and the deflected-to subscriber is busy, then subscriber A shall not receive any CCBS possible indication. Served subscriber: If the called subscriber (served CD subscriber) requests invocation of the CD supplementary service on a terminating call resulting from the completion of calls to busy subscribers supplementary service, then the CCBS call shall be deflected as a normal call. 7.22 Support of Private Numbering Plan (SPNP) No impact, i.e. neither supplementary service shall affect the operation of the other supplementary service. The served subscriber shall be able to enter the deflected-to number according to the selected numbering plan. 7.23 Multiple Subscriber Profile (MSP) If a subscriber is provisioned to both the MSP and the CD service, the CD service shall be provisioned on a per profile basis. If CD is provisioned in the profile used for the incoming call, the served subscriber may invoke the CD supplementary service in the normal way. 8 Interactions with Customized Applications for Mobile network Enhanced Logic (CAMEL); The CD supplementary service shall, if invoked, take affect after the invocation of any terminating CAMEL based service. Any deflected call may cause invocation of any mobile originated CAMEL based services. If the served subscriber is provided with a Translation Information Flag (TIF-CSI, see TS 22.078 [6]) and the VPLMN supports CAMEL phase 2, then when the CD supplementary service is invoked the network shall not check the validity of the deflected-to number and shall not apply the CD interactions with Barring of all Outgoing International Calls (BOIC) and Barring of all Outgoing International Calls except those direct to the Home PLMN Country (BOIC-exHC). NOTE: This behaviour may be used to deflect a call to a destination violating the BOIC or BOIC-exHC supplementary service. The HPLMN operator should take care to avoid problems that may arise because of this interaction. Non identified. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 3GPP 3G TS 22.072 V3.0.1 (1999-10) 13 3G TS 22.072 version 3.0.1 Annex A (informative): Deviations to the ISDN service Call Deflection 1) If the call deflection request of a served subscriber is accepted and CD is invoked ISDN gives two network options: a) The call to the served user is retained until the network receives an indication that the deflected-to user is informed of the call. b) First the call is removed from the served subscriber and then the connection to the deflected-to subscriber is established. PLMNs only provide network option b. 2) The service CD does not provide the subscription option "the served user's ISDN number can be presented to the deflected-to user" to the served subscriber. 3) The interaction between CD and CCBS in the PLMN is different from the interaction between CD and CCBS in ISDN. The activation of the CCBS supplementary service will not be offered to the calling subscriber if the original call is deflected to a busy user. In ISDN the CCBS request applies to the original called party. 4) The handling of notifications to subscriber A in case of multiple diversion is not described in the way as ISDN this has been done. It is the intention of this service description to retain the same handling as it is used in present call forwarding implementations. Annex B: Change history Change history TSG SA# Spec Versi on CR <Phase> New Version Subject/Comment Jun 1999 GSM 02.72 7.2.0 Transferred to 3GPP SA1 SA#04 22.072 3.0.0 SA#05 22.072 3.0.0 001 R99 3.0.1 Editorial update of references for GSM/3GPP use. (3G TS 22.072 version 3.0.1 Release 1999) ETSI TS 122 072 V3.0.1 (2000-01) ETSI 14 ETSI ETSI TS 122 072 V3.0.1 (2000-01) (3G TS 22.072 version 3.0.1 Release 1999) History Document history V3.0.1 January 2000 Publication
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2 References
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3 Definitions and abbreviations
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3.1 Definitions
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3.2 Abbreviations
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4 Description
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4.1 Applicability to telecommunication services
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5 Normal operation with successful outcome
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5.1 Provision
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5.2 Withdrawal
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5.3 Registration
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5.4 Erasure
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5.5 Network related service configuration
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5.6 Activation
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5.7 Deactivation
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5.8 Invocation
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5.9 Normal operation
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5.10 Interrogation
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5.11 Charging requirements
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6 Exceptional procedures or unsuccessful outcome
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7 Alternate procedures
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8 Interaction with other supplementary services
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8.1 Calling Line Identification Presentation (CLIP)
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8.2 Calling Line Identification Restriction (CLIR)
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