3GPP TS 23.015 V7.0.0 (2007-03)
`
`Technical Specification
`
`3rd Generation Partnership Project;
`Technical Specification Group Core Network;
`Technical realization of Operator Determined Barring (ODB)
`(Release 7)
`
`GLOBAL SYSTEM FOR
`MOBILE COMMUNICATIONS
`
`R
`
`The present document has been developed within the 3rd Generation Partnership Project (3GPP TM) and may be further elaborated for the purposes of 3GPP.
`The present document has not been subject to any approval process by the 3GPP Organisational Partners and shall not be implemented.
`This Specification is provided for future development work within 3GPP only. The Organisational Partners accept no liability for any use of this Specification.
`Specifications and reports for implementation of the 3GPP TM system should be obtained via the 3GPP Organisational Partners' Publications Offices.
`
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`HTC EXHIBIT 1015
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`Page 1 of 26
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`Release 7
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`2
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`3GPP TS 23.015 V7.0.0 (2007-03)
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`
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`Keywords
`GSM, UMTS, call barring, supplementary service
`
`3GPP
`
`Postal address
`
`
`3GPP support office address
`650 Route des Lucioles - Sophia Antipolis
`Valbonne - FRANCE
`Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16
`
`Internet
`http://www.3gpp.org
`
`
`
`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.
`
`© 2007, 3GPP Organizational Partners (ARIB, ATIS, CCSA, ETSI, TTA, TTC).
`All rights reserved.
`
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`3GPP
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`Release 7
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`3GPP TS 23.015 V7.0.0 (2007-03)
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`Contents
`Foreword ............................................................................................................................................................ 4
`1
`Scope ........................................................................................................................................................ 5
`1.1
`Normative references ......................................................................................................................................... 5
`1.2
`Definitions and abbreviations ............................................................................................................................ 5
`2
`Method of realisation ............................................................................................................................... 5
`2.1
`Barring of Outgoing Calls or Mobile Originated Short Messages .................................................................... 5
`2.1.1
`Application or Change of Barring in the HLR ............................................................................................. 6
`2.1.2
`Invocation of Barring ................................................................................................................................... 6
`2.2
`Barring of Incoming Calls or Mobile Terminated Short Messages ................................................................... 8
`2.2.1
`Application or Change of Barring in the HLR ............................................................................................. 8
`2.2.2
`Invocation of Barring ................................................................................................................................... 8
`2.3
`Barring of Roaming ......................................................................................................................................... 10
`2.3.1
`Application or Change of Barring in the HLR ........................................................................................... 10
`2.3.2
`Invocation of Barring ................................................................................................................................. 10
`2.4
`Barring of Supplementary Services Access ..................................................................................................... 12
`2.4.1
`Application or Change of Barring in the HLR ........................................................................................... 12
`2.4.2
`Invocation of Barring ................................................................................................................................. 12
`2.4.3
`Operator Determined Barring of access to supplementary service not supported in VLR ........................ 14
`2.5
`Barring of MS initiated PDP context activation .............................................................................................. 14
`2.5.1
`Application or Change of Barring in the HLR ........................................................................................... 14
`2.5.2
`Invocation of Barring ................................................................................................................................. 15
`2.6
`Barring of Network initiated PDP context activation ...................................................................................... 15
`2.6.1
`Application or Change of Barring in the HLR ........................................................................................... 15
`2.6.2
`Invocation of Barring ................................................................................................................................. 16
`2.6A
`Barring of existing PDP contexts .................................................................................................................... 17
`2.6A.1
`Application or Change of Barring in the HLR ........................................................................................... 17
`2.6A.2
`Invocation of Barring ................................................................................................................................. 17
`2.7
`Interactions of Operator Determined Barring with Supplementary Services .................................................. 17
`2.7.1
`Call Forwarding ......................................................................................................................................... 18
`2.7.2
`Closed User Group ..................................................................................................................................... 19
`2.7.3
`Call Barring ................................................................................................................................................ 19
`2.8 Barring of services in I-WLAN .................................................................................................................................. 19
`2.8.1 Change of Barring in the HSS ................................................................................................................................. 19
`2.8.2 Barring of interworked packet services in I-WLAN ............................................................................................... 19
`2.8.3 Barring of W-APN Activation in I-WLAN ............................................................................................................. 20
`2.8.4 Barring of public Internet access in I-WLAN ......................................................................................................... 20
`3
`Information stored in location registers ................................................................................................. 21
`3.1
`Information stored in the HLR ........................................................................................................................ 21
`3.2
`Information stored in the VLR ........................................................................................................................ 22
`3.3
`Information stored in the SGSN ...................................................................................................................... 23
`3.4
`Transfer of Subscription Information from HLR to VLR ............................................................................... 24
`3.5
`Transfer of Subscription Information from HLR to SGSN ............................................................................. 24
`3.6
`I-WLAN Information stored in the HSS ......................................................................................................... 25
`3.7
`Transfer of User Profile Data from HSS to 3GPP AAA Server ...................................................................... 25
`Change history ...................................................................................................................... 26
`Annex A:
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`3GPP TS 23.015 V7.0.0 (2007-03)
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`Foreword
`This Technical Specification has been produced by the 3GPP.
`
`This TS describes the network feature Operator Determined Barring which allows a network operator or service
`provider to regulate access by subscribers to services within the 3GPP system.
`
`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;
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`3
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`Indicates TSG approved document under change control.
`
`y
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`the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections,
`updates, etc.
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`z
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`the third digit is incremented when editorial only changes have been incorporated in the specification;
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`Scope
`1
`The network feature Operator Determined Barring (ODB) allows a network operator or service provider to regulate
`access by subscribers to services (Circuit/Packet Oriented and Interworking WLAN), by the barring of certain
`categories of incoming or outgoing calls/ Packet Oriented Services or of roaming. Operator Determined Barring applies
`to all bearer services and teleservices except the Emergency Call teleservice; the teleservice Short Message Point-to-
`Point is therefore subject to Operator Determined Barring in the same way as circuit-switched calls.
`
`The application of specific categories of Operator Determined Barring to a subscription is controlled by the network
`operator or service provider, using administrative interaction at the HLR; this interface is not standardised.
`
`Normative references
`1.1
`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. In the case of a reference to a 3GPP document
`(including a GSM document), a non-specific reference implicitly refers to the latest version of that document in
`the same Release as the present document.
`
`[1]
`
`[2]
`
`[3]
`
`[4]
`
`[5]
`
`3GPP TS 21.905: "Abbreviations and acronyms".
`
`3GPP TS 22.041: "Operator Determined Barring"..
`
`3GPP TS 23.040: "Technical realization of the Short Message Service (SMS)".
`
`3GPP TS 23.060: " General Packet Radio Service (GPRS) Service description Stage 2"
`
`3GPP TS 29.234: "3GPP system to Wireless Local Area Network (WLAN) interworking; stage 3"
`
`Definitions and abbreviations
`1.2
`Abbreviations used in this specification are listed in 3GPP TS 21.905.
`
`Method of realisation
`2
`The entities which control the application of Operator Determined Barring (ODB), and the methods used, are described
`in this clause. Two cases are considered for each type of barring: the effect of administrative action in the HLR to
`modify the application of the category to a particular subscription, and the effect of the category on the handling of
`calls or other traffic involving the subscriber.
`
`2.1
`
`Barring of Outgoing Calls or Mobile Originated Short
`Messages
`Barring of outgoing calls or mobile originated short messages includes the categories "outgoing calls" and "outgoing
`premium rate calls" defined in 3GPP TS 22.041 [2], and the "operator specific barring" category where this is defined
`by the PLMN operator to apply to outgoing calls or mobile originated short messages.
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`Application or Change of Barring in the HLR
`2.1.1
`If barring of outgoing calls or mobile originated short messages is applied to a subscription (or existing barring of
`outgoing calls or mobile originated short messages is modified or removed) by administrative action in the HLR, the
`HLR will update the subscription information accordingly, and transfer the updated subscription information to the
`VLR and the SGSN using one or more Insert Subscriber Data operations, as shown in figure 2.1.1/1.
`
`If operator specific barring is applied to a subscription (or existing operator specific barring is modified or removed) by
`administrative action in the HLR, the HLR will update the subscription information accordingly. If the mobile
`subscriber is registered in the home PLMN, the HLR will transfer the updated subscription information to the VLR and
`the SGSN using one or more Insert Subscriber Data operations, as shown in figure2.1.1/ 1.
`
`VLR or SGSN
`
`HLR
`
`If the VPLMN does not support Operator Determined Barring of outgoing calls, the VLR and the SGSN shall indicate
`this in the acknowledgement of the Insert Subscriber Data message. The HLR shall then, as an operator option, apply
`the Outgoing Calls Barred supplementary service, apply barring of roaming as described in subclause 2.3 or take any
`other action decided by the operator of the HPLMN.
` MS
`MSC
`ODB of outgoing calls applied, modified or removed
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`Insert
`Subscriber
`<-----------
`data
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`Figure 2.1.1/1: Transfer of updated subscription information to VLR or SGSN
`
`Invocation of Barring
`2.1.2
`Barring of outgoing calls or mobile originated short messages is invoked in the VLR. If the VLR receives a request for
`subscription information for an outgoing call or mobile originated short message which is prohibited by Operator
`Determined Barring, the VLR will return a negative response to the request for subscription information, with an
`appropriate error indication. The MSC may relay this error indication via the BSS/RNS to the mobile station over the
`radio path, or (in the case of an outgoing call) may connect the mobile station to an address to be determined by the
`network operator.
`
`Barring of mobile originated short messages is invoked in the SGSN. If the SGSN receives a request for a mobile
`originated short message which is prohibited by Operator Determined Barring, the SGSN will return a negative
`response to the request with an appropriate error indication via the BSS/RNS to the mobile station over the radio path.
`
`Barring of all international calls, barring of all international calls except those directed to the home PLMN country,
`barring of all premium rate (information) calls or barring of all premium rate (entertainment) calls requires the VLR or
`the SGSN to analyse the called number to determine whether the requested call is barred.
`
`Barring of all outgoing calls when roaming outside the home PLMN country requires the HLR to determine whether a
`request for location updating originates from a PLMN outside the home PLMN country. If the request does originate
`from a PLMN outside the home PLMN country, the HLR will transfer subscription information to the requesting node
`to indicate that the mobile station is subject to barring of all outgoing calls.
`
`Operator Specific Barring may apply to outgoing or incoming calls, or mobile originated or mobile terminated short
`messages; if it applies to outgoing calls or mobile originated short messages, it is invoked in the VLR or the SGSN, as
`described above. If the barring applies to calls directed to a specific class of destination, the called number must be
`analysed to determine whether the requested call is barred.
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`Indicative message flow diagrams for the handling of Operator Determined Barring of outgoing calls or mobile
`originated short messages are given in figures 2.1.2/1 and 2.1.2/2. For the case where the mobile station is connected to
`an address determined by the network operator, this address is assumed to be directly connected to the MSC, so that no
`inter-MSC signalling is required.
`MSC
`
`MS
`Outgoing call or MO SMS request barred because of ODB
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`O/G Request
`----------------->
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`VLR
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`Send Info for
`---------------->
`O/G Call
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`Reject
`<----------------
`(cause)
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`Operator option: error indication returned to MS
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`Reject
`<-----------------
`(Cause)
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`Figure 2.1.2/1: Operator Determined Barring of Outgoing Calls or Mobile Originated Short Messages
`invocation in the VLR
`
`SGSN
`MS
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` MO SMS request barred because of ODB
`
`MO Short
`----------------->
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`Message
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`Error indication returned to MS
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`Reject
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`<-----------------
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`(cause)
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`Figure 2.1.2/2: Operator Determined Barring of Mobile Originated Short Messages invocation in the
`SGSN
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`Barring of Incoming Calls or Mobile Terminated Short
`Messages
`
`Application or Change of Barring in the HLR
`2.2.1
`If barring of incoming calls or mobile terminated short messages is applied to a subscription (or existing barring of
`incoming calls or mobile terminated short messages is modified or removed) by administrative action in the HLR, the
`HLR will update the subscription information accordingly. It is not necessary to transfer the updated subscription
`information to the VLR or the SGSN.
`
`Invocation of Barring
`2.2.2
`Barring of incoming calls is invoked in the HLR. If the HLR receives a request for routing information for a call
`directed to a mobile station which is subject to barring of incoming calls, the HLR will return a negative response to the
`request for routing information, with an appropriate error indication. The Gateway MSC may relay this error indication
`to the originating network using the appropriate telephony signalling system, or may connect the call to a recorded
`announcement to be determined by the network operator.
`
`Barring of mobile terminated short messages is invoked in the HLR. If the HLR receives a request for routing
`information for a short message directed to a mobile station which is subject to barring of incoming calls, the HLR will
`return a negative response to the request for routing information, with an appropriate error indication. This error
`indication will be relayed to the originating Short Message service centre by the Gateway MSC using the protocol
`defined in 3GPP TS 23.040.
`
`Operator Specific Barring may apply to outgoing or incoming calls, or mobile originated or mobile terminated short
`messages; if it applies to incoming calls or mobile terminated short messages, it is invoked in the HLR, as described
`above.
`
`An indicative message flow diagram for the handling of Operator Determined Barring of incoming calls is given in
`figure 2.2.2/1. For the case where the call is connected to an address determined by the network operator, this address is
`assumed to be directly connected to the GMSC, so that no inter-MSC signalling is required.
` HLR
`GMSC
`N/W
`Incoming call request barred because of ODB
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`Operator option: error indication returned to network
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`Incoming call
`<---------------
`(address)
`
`
`
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`Send routing
`<----------------
`info request
`
`Reject
`---------------->
`(cause)
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`Reject
`--------------->
`(cause)
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`Figure 2.2.2/1: Operator Determined Barring of Incoming Calls
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`SMS SC
`
`MT short
`<---------------
`message
`
`An indicative message flow diagram for the handling of Operator Determined Barring of mobile terminated short
`messages is given in figure 2.2.2/2.
`
`HLR
`SMS GMSC
`MT short message request barred because of ODB
`
`
`
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`Send routing
`
`info for SM
`
`<----------------
`
`request
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`
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`Reject
`---------------->
`(cause)
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`Reject
`--------------->
`(cause)
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`Figure 2.2.2/2: Operator Determined Barring of Mobile Terminated Short Messages
`
`2.3
`
`Barring of Roaming
`
`Application or Change of Barring in the HLR
`2.3.1
`If barring of roaming is applied to a subscription (or modified or removed) by administrative action in the HLR, the
`HLR will update the subscription information accordingly. If the HLR determines from the identity of the VLR and/or
`the SGSN that the mobile subscriber is currently registered in a barred PLMN, the HLR will put the barring into effect
`by using a Cancel Location operation to the VLR and/or the SGSN, as shown in figure 2.3.1/1. If the mobile subscriber
`is not currently registered in a barred PLMN, the HLR will take no further action.
`
`MS
`MSC
`VLR or SGSN
`ODB of roaming applied
`
`
`
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`
`
`Cancel
`<-----------
`location
`
`HLR
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`Figure 2.3.1/1: Immediate Application of Barring of Roaming
`
`Invocation of Barring
`2.3.2
`Barring of roaming is invoked in the HLR. If the HLR receives a request from a VLR for location updating for a mobile
`which is attempting to roam to an area prohibited by Operator Determined Barring, the HLR will reject the location
`updating request with an appropriate error indication and this error indication will be relayed by the MSC and the
`BSS/RNS to the mobile station over the radio path. If the HLR receives a request from a SGSN for location updating
`for a mobile which is attempting to roam to an area prohibited by Operator Determined Barring, the HLR will reject the
`location updating request with an appropriate error indication and this error indication will be relayed by the SGSN and
`the BSS/RNS to the mobile station over the radio path.
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`VLR
`
`HLR
`
`Indicative message flow diagrams for the handling of Operator Determined Barring of roaming are given in figures
`2.3.2/1 and 2.3.2/2.
`MSC
`
`MS
`Roaming barred because of ODB
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` LR request
`------------->
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`Reject
`<-------------
`(cause)
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`Location update
`---------------->
`request
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`Reject
`<----------------
`(cause)
`
`
`Update
`Location
`----------->
`request
`
`Reject
`<-----------
`(cause)
`
`
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`Figure 2.3.2/1: Operator Determined Barring of Roaming invocation in HLR. Roaming in a prohibited
`VLR
`
`SGSN
`MS
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`Roaming barred because of ODB
`
`
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` LR request
`------------->
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`Reject
`<-------------
`(cause)
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`HLR
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`GPRS Update
`
`Location
`---------------->
`request
`
`Reject
`<----------------
`(cause)
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`Figure 2.3.2/2: Operator Determined Barring of Roaming invocation in HLR. Roaming in a prohibited
`SGSN
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`Barring of Supplementary Services Access
`2.4
`Barring of supplementary services access encompasses the general barring of supplementary services management
`category specified in 3GPP TS 22.041 [2] and the specific categories of barring of registration of a call forwarded-to
`number and barring of invocation of call transfer.
`
`Application or Change of Barring in the HLR
`2.4.1
`If barring of supplementary services access is applied to a subscription (or existing barring of supplementary services
`access is modified or removed) by administrative action in the HLR, the HLR will update the subscription information
`accordingly, and, if necessary, transfer the updated subscription information to the VLR using one or more Insert
`Subscriber Data operations, as shown in figure 2.1.1/1.
`
`If the VPLMN does not support Operator Determined Barring of supplementary service access, the VLR shall indicate
`this in the acknowledgement to the Insert Subscriber Data message. The HLR shall then, as an operator option, apply
`barring of roaming as described in subclause 2.3 or take any other action decided by the operator of the HPLMN.
`
`Invocation of Barring
`2.4.2
`Barring of supplementary services access is invoked in the HLR or the VLR, depending on the supplementary service
`operation.
`
`Barring of access to the following supplementary service operations is invoked in the HLR:
`
`-
`
`registration;
`
`- erasure;
`
`- activation;
`
`- deactivation;
`
`- password registration;
`
`- processing unstructured SS data.
`
`An indicative message flow diagram for the handling in the HLR of Operator Determined Barring of access to
`supplementary services is given in figure 2.4.2/1.
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`MSC
`MS
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`Access to Supplementary Services barred because of ODB
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`SS request
`------------->
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`VLR
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`HLR
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`SS
`activity
`----------->
`request
`
`Reject
`<-----------
`(cause)
`
`SS activity
` ---------------->
`request
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`Reject
`<----------------
`(cause)
`
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`
`
`
`
`
`
`Reject
`<-------------
`(cause)
`
`Figure 2.4.2/1: Operator Determined Barring of Access to Supplementary Services in the HLR
`
`NOTE 1: Although the HLR handles interrogation of some supplementary services, Operator Determined Barring
`of interrogation of all supplementary services is invoked in the VLR. This reduces the amount of analysis
`which the VLR must perform on supplementary service requests before deciding whether to relay a
`supplementary service request to the HLR or reject it because of Operator Determined Barring of access
`to supplementary services. Operator Determined Barring of control of PLMN specific supplementary
`services is invoked in the VLR for the same reason.
`
`NOTE 2: Although the VLR handles some processing of unstructured SS data, and therefore has to check for
`Operator Determined Barring of access to supplementary services, a check is also specified in the HLR to
`guard against the case where the VLR does not support Operator Determined Barring of access to
`supplementary services.
`
`Barring of access to the following supplementary service operations is invoked in the VLR:
`
`-
`
`-
`
`interrogation;
`
`invocation;
`
`- control of PLMN specific supplementary services;
`
`- processing unstructured SS data.
`
`An indicative message flow diagram for the handling in the VLR of Operator Determined Barring of access to
`supplementary services is given in figure 2.4.2/2.
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`MSC
`MS
`
`Access to Supplementary Services barred because of ODB
`
`
`
`
`
`
`
`
`
`
`
`
` SS request
`------------->
`
`
`
`
`
`
`
`
`VLR
`
`SS activity
` ---------------->
`request
`
`Reject
` <----------------
`(cause)
`
`
`
`
`
`
`
`Reject
`<-----------------
`(Cause)
`
`Figure 2.4.2/2: Operator Determined Barring of Access to Supplementary Services in the VLR
`
`2.4.3 Operator Determined Barring of access to supplementary service
`not supported in VLR
`If the VLR does not support Operator Determined Barring of access to supplementary services the HLR shall take the
`following actions:
`
`The VLR supports only phase 1:
`
`
`
`If the HLR receives a request which should normally be barred by the VLR the HLR shall reject the request with
`the appropriate phase 1 error (illegal SS operation or system failure).
`
`The VLR supports phase 2 but does not support this Operator Determined Barring category:
`
`
`
`If the HLR receives a request which should normally be barred by the VLR the HLR shall reject the request
`instead of the VLR.
`
`Note that requests handled locally by the VLR (e.g. interrogation) will not be barred.
`
`Barring of MS initiated PDP context activation
`2.5
`Barring of MS initiated PDP context activation shall be performed based on the Operator Determined Barring for
`Packet Oriented Services defined in 3G TS 22.041 [2].
`
`Application or Change of Barring in the HLR
`2.5.1
`If barring of Packet Oriented Services is applied to a subscription (or existing barring of Packet Oriented Services is
`modified or removed) by administrative action in the HLR, the HLR will update the subscription information
`accordingly, and transfer the updated subscription information to the SGSN using one or more Insert Subscriber Data
`operations, as shown in figure 2.5.1/1.
`
`If the VPLMN does not support Operator Determined Barring of Packet Oriented Services, the SGSN shall indicate this
`in the acknowledgement of the Insert Subscriber Data message. The HLR shall then, as an operator option, apply
`barring of roaming as described in subclause 2.3 or take any other action decided by the operator of the HPLMN.
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`
`
`SGSN
` MS
`ODB of Packet Oriented Services applied, modified or removed
`
`
`
`
`
`
`
`
`
`Insert
`Subscriber
`<-----------
`data
`
`
`
`
`
`
`Figure 2.5.1/1: Transfer of updated subscription information to SGSN
`
`Invocation of Barring
`2.5.2
`Barring of MS initiated PDP context activation is invoked in the SGSN. If the SGSN receives a request for an MS
`initiated PDP context activation which is prohibited by Operator Determined Barring, the SGSN will return a negative
`response to the request with an appropriate error indication via the BSS/RNS to the mobile station over the radio path.
`
`Barring of MS initiated PDP context activation is performed in the SGSN while the SGSN selects the APN and GGSN.
`The APN operator identifier, a part of selected APN is referred to make a judgement whether to be barred or not. The
`detail mechanism of the ODB judgement is specified in the 3G TS 23.060 [4].
`
`Indicative message flow diagram for the handling of Operator Determined Barring of MS initiated PDP context
`activation is given in figures 2.5.2/1.
`
`MS
`SGSN
`MS initiated PDP context activation barred because of ODB
`
`
`
`
`
`
`
`
`
`
`
`Activate PDP
`context request
`---------------->
`
`Reject
`<----------------
`(cause)
`
`
`
`Figure 2.5.2/1: Operator Determined Barring of MS initiated PDP context activation in the SGSN
`
`Barring of Network initiated PDP context activation
`2.6
`Barring of Network initiated PDP context activation shall be performed based on the Operator Determined Barring for
`Packet Oriented Services defined in 3G TS 22.041 [2].
`
`Application or Change of Barring in the HLR
`2.6.1
`If barring of Packet Oriented Services is applied to a subscription (or existing barring of Packet Oriented Services is
`modified or removed) by administrative action in the HLR, the HLR will update the subscription information
`accordingly. It is not necessary to transfer the updated subscription information to the SGSN.
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`Invocation of Barring
`2.6.2
`Barring of Network initiated PDP context activation is invoked in the HLR. If the HLR receives a request for routing
`information for a PDP context activation directed to a mobile station which is subject to barring of Packet Oriented
`Services, the HLR will return a negative response to the request for routing information, with an appropriate error
`indication. The GGSN may relay this error indication to the PDP PDU incoming network using the appropriate
`interworking.
`
`N/W
`
`Incoming PDP PDU
`<---------------
`(address)
`
`An indicative message flow diagram for the handling of Operator Determined Barring of Network initiated PDP
`context activation is given in figure 2.6.2/1.
` HLR
`GGSN
`Network initiated PDP context activation barred because of ODB
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`
`Operator option: error indication returned to network
`
`
`
`
`Send routing
`<----------------
`info request
`for GPRS
`
`Reject
`---------------->
`(cause)
`
`
`
`
`
`
`
`
`
`
`
`Reject
`--------------->
`(cause)
`
`Figure 2.6.2/1: Operator Determined Barring of Network initiated PDP context activation
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`2.6A Barring of existing PDP contexts
`Barring of existing PDP contexts shall be performed based on the Operator Determined Barring for Packet Oriented
`Services de