SIST EN 300 392-3-15 V1.5.1:2026

• Abstract:

  The present document defines the mobility management of interworking at the Inter-System Interface (ISI) for Terrestrial Trunked Radio (TETRA) system supporting Voice plus Data (V+D). The TETRA V+D Inter-working - basic operation part defines the Inter-System Interface (ISI) between the SwMIs as specified in the following sub-parts:; • Transport layer independent, General design [i.5].; • General design, PSS1 over E.1 [13].; • General design, SIP/IP [i.6].; • Transport layer independent Additional Network Feature Individual Call (ANF-ISIIC) [9].; • Transport layer independent Additional Network Feature Group Call (ANF-ISIGC) [10].; • Transport layer independent Additional Network Feature Short Data Service (ANF-ISISDS) [i.2].; • Transport layer independent Additional Network Feature, Mobility Management (ANF-ISIMM) (the present document).; • Generic Speech Format Implementation [i.4].; NOTE: These TSs are produced in analogy with Recommendation ITU-T I.130 [4].; The present document contains the ANF-ISIMM part. The ANF-ISIMM part defines additional Mobility Management (MM) services to the SwMIs. If supported, the ANF-ISIMM services complement the intra-SwMI-MM, authentication and key management services. In support of these, the ANF-ISIMM enables the invocation and operation of these services between the SwMIs over the ISI. Thus, ANF-ISIMM offers the following services:; • Migration and restricted migration.; • Individual subscriber and group profile update.; • Supplementary Service profile update.; • De-registration.; • Group attachment/detachment.; • Linked group attachment/detachment.; • Individual subscriber and group database recovery.; • Authentication, one-directionally or mutually between the individual subscriber and the home SwMI.; • Over-The-Air-Re-keying (OTAR) for Static Cipher Key (SCK) generation and SCK delivery.; For the following service are only included in the stage 1 descriptions:; • Group Linking/unlinking.; • GTSI attachment/detachment to a linking participating group from another SwMI.

• Status: Published
• Public Enquiry End Date: 31-May-2026
• Publication Date: 17-Aug-2026
• ICS: 33.070.10 - Terrestrial Trunked Radio (TETRA)
• ICS: 35.100.40 - Transport layer
• Technical Committee: MOC - Mobile Communications
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 24-Jul-2026
• Due Date: 28-Sep-2026
• Completion Date: 18-Aug-2026
• Ref Project: ETSI EN 300 392-3-15 V1.5.1 (2026-07) - Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 15: Transport layer independent Additional Network Feature, Mobility Management (ANF-ISIMM)

SIST EN 300 392-3-15 V1.5.1:2026 is the Slovenian adoption of ETSI EN 300 392-3-15 V1.5.1 (2026-07) for Terrestrial Trunked Radio (TETRA) Voice plus Data (V+D). It specifies transport layer independent Additional Network Feature, Mobility Management (ANF-ISIMM) at the Inter-System Interface (ISI) between Switching and Management Infrastructures (SwMI). In practice, it tells TETRA implementers and operators how mobility, authentication, over-the-air key handling and selected group services are coordinated across SwMIs.

What does SIST EN 300 392-3-15 V1.5.1:2026 specify?

SIST EN 300 392-3-15 V1.5.1:2026 defines the mobility management part of interworking at the ISI for TETRA V+D. The document focuses on how ANF-ISIMM services complement intra-SwMI mobility management, authentication and key management when service control crosses from one SwMI to another.

Clause 4 gives the overview and applicability. Clauses 5 to 20 contain the stage 1 service models and service descriptions. Clauses 21 to 36 cover stage 2 information flow sequences and stage 3 definitions of information flows. Clauses 37 to 39 define encoding requirements, procedures and general service principles.

Annex	What it covers
Annex B	ANF-ISIMM services requirements for databases
Annex C	Bibliography

The document is organized around service behavior first, then message flows, then encoding. That matters because a reader can use it to design the service, map the exchanges between SwMIs, and then encode the PDUs consistently.

What are the key requirements of SIST EN 300 392-3-15 V1.5.1:2026?

SIST EN 300 392-3-15 V1.5.1:2026 treats ANF-ISIMM as a SwMI V+D layer 3 service provider offering services to SwMI mobility management entities. Clause 5 defines the generic service model and uses indication, response and confirm primitives. In practice, implementers need to map each service into that same control pattern so both SwMIs interpret the exchange the same way.

Service model, provision and testability

• Clause 4 states that ANF-ISIMM supports mobility management, authentication and Over The Air Re-keying (OTAR) services for migrating or migrated individual subscribers, and also supports group linking and group attachment/detachment over the ISI. This tells an operator which cross-network functions are in scope.
• Clause 4.3 says the service shall be testable over the ISI, with testing intended at the ISI interface. That matters for conformance and interoperability work, because the interface is where behavior is checked.
• Clause 4.4 says provision and withdrawal are by pre-arrangement between SwMI operators, and may also be withdrawn for administrative reasons. In practice, service availability is an operator agreement, not an automatic network feature.
• Clause 4.5 ties activation and deactivation to provision and withdrawal. That gives operations teams a simple rule for when the service should be live.

Core subscriber mobility services

• Clause 6 defines migration as a mandatory service for SwMI MMs that support ANF-ISIMM. It allows an individual subscriber to move between SwMIs with different MNIs while informing the home SwMI of the current location SwMI.
• Clause 7 defines restricted migration as an optional service that preserves the right to make and receive circuit switched emergency calls, and supports call restoration during an established emergency individual call. That matters when emergency service continuity is the priority.
• Clause 8 defines Removal of Subscriber Information (RSI) as a mandatory service that removes the subscriber’s information from the previous visited SwMI after migration. In practice, this cleans up stale records and can support individual call restoration.
• Clause 9 defines de-registration as a mandatory service for migrated individual subscribers. After de-registration, the subscriber is not offered services in the current SwMI, so the home and visited SwMIs must update their records consistently.

Profiles, authentication and keys

• Clause 10 defines profile update as an optional service that updates the basic migration profile in the visited SwMI, including subscriber and group information, service support and related parameters. This is the mechanism for keeping the visited SwMI’s authorization data aligned with the home SwMI.
• Clause 11 defines SS-profile update as an optional service for one or more supplementary service migration profiles. The clause also covers creation of temporary SS-migration profiles and the SS-profile update indicator, so implementers need to handle whether supplementary services are supported for the migrated subscriber.
• Clause 12 defines authentication as an optional service. Its pre-requisite is that TA12 and TA22 are common for the migrating individual subscriber and the individual subscriber home SwMI, which means authentication depends on shared algorithm support.
• Clause 13 defines OTAR as an optional service for assigning Static Cipher Key (SCK) and SCKX to a migrated individual subscriber. The clause covers both generation and delivery, so key handling can be done in either the visited or home SwMI.

Database recovery and group services

• Clause 14 defines Individual subscriber Database Recovery (IDR) as a mandatory service for recovering inconsistent individual subscriber data between SwMIs after a fault. That is important when migration or recovery has left home and visited databases out of step.
• Clause 15 defines group attachment as a conditional service that extends AI group attachment across the ISI, provided the collocated SwMI CC supports ANF-ISIGC. In practice, group attachment across networks depends on the related group-call feature.
• Clause 16 defines group detachment as conditional and dependent on support for group attachment. That keeps the attachment and detachment logic paired.
• Clause 17 defines Group Database Recovery (GDR) as a conditional service for recovering group data between SwMIs. This helps restore consistent group records after a failure.
• Clause 18 defines group linking/unlinking as an optional service for dynamic linking and unlinking of groups across the ISI. Clause 18.6 is explicit that a group must exist before it can be linked.
• Clauses 19 and 20 define linked group attachment and linked group detachment. These services are based on group linking and manage how a participating group attaches to or detaches from a linked group.

What terms does SIST EN 300 392-3-15 V1.5.1:2026 define?

SIST EN 300 392-3-15 V1.5.1:2026 defines a set of terms that are central to inter-SwMI mobility work.

• Switching and Management Infrastructure (SwMI) - all TETRA equipment for a Voice plus Data (V+D) network except subscriber terminals.
• Additional Network Feature (ANF) - a network feature added to the basic TETRA service set for a specific interworking purpose.
• migration - the act of changing to a Location Area in another network where the user does not have a subscription.
• migration profile - the basic migration or SS-migration service profile linked to a specific TSI used by an individual subscriber.
• Removal of Subscriber Information (RSI) - the service that removes subscriber information from the previous visited SwMI after migration.
• Over The Air Re-keying (OTAR) - the service used to assign SCK/SCKX to a migrated individual subscriber.
• Static Cipher Key (SCK) - a cipher key used for confidentiality, with support for generation and delivery in the OTAR service.
• Individual subscriber Database Recovery (IDR) - the service for recovering individual subscriber data in databases between SwMIs.

Who uses SIST EN 300 392-3-15 V1.5.1:2026?

SIST EN 300 392-3-15 V1.5.1:2026 is used by TETRA network operators, SwMI vendors, protocol implementers and test laboratories. It is especially relevant where individual subscribers move between SwMIs and the network must preserve authentication, location, group membership and keying data.

Home SwMI MMs and visited SwMI MMs use it to exchange migration-related information. Group home SwMI MMs and group visited SwMI MMs use it for group attachment, detachment, linking and recovery. Operations and engineering teams use it when they need to agree service provision across operators, configure database handling, or verify behavior at the ISI.

What changed in SIST EN 300 392-3-15 V1.5.1:2026 from the previous edition?

SIST EN 300 392-3-15 V1.5.1:2026 is identified as V1.5.1. The provided material does not name an earlier edition or list revision changes.

Which standards are used with SIST EN 300 392-3-15 V1.5.1:2026?

SIST EN 300 392-3-15 V1.5.1:2026 names one normative reference and several companion TETRA standards that define related parts of the ISI framework.

Standard	What it contributes
ETSI EN 300 392-1	General network design for TETRA V+D
ETSI EN 300 392-2	Air interface services such as neighbour cell broadcast, migration-related service context and other AI services referenced by the clauses
ETSI EN 300 392-7	Security-related functions, including TA12/TA22 and TA51/TA53, TA52/TA54 prerequisites and security-class context
EN/ETS 300 392-12	Supplementary-service-specific applicability for SS-migration profile handling
Recommendation ITU-T I.130	The stage 1 service description method used as the model for the service clauses
Transport layer independent, General design	ISI basic operation framework
General design, PSS1 over E.1	ISI basic operation framework for PSS1 over E.1
General design, SIP/IP	ISI basic operation framework for SIP/IP
Transport layer independent ANF-ISIIC	Inter-System Interface Individual Call support
Transport layer independent ANF-ISIGC	Inter-System Interface Group Call support
Transport layer independent ANF-ISISDS	Inter-System Interface Short Data Service support
Generic Speech Format Implementation	Speech format implementation for circuit mode transmission

What does the SIST EN 300 392-3-15 V1.5.1:2026 document contain?

SIST EN 300 392-3-15 V1.5.1:2026 contains stage 1 service descriptions for migration, restricted migration, RSI, de-registration, profile update, SS-profile update, authentication, OTAR, IDR, group attachment, group detachment, GDR, group linking/unlinking, linked group attachment and linked group detachment. It then turns those services into stage 2 information flow sequences and stage 3 message definitions.

The document also includes PDU description tables, information element encoding rules, primitive-to-PDU correspondence, timers, profile structures and procedure descriptions. For a reader, that means the standard is useful both for functional design and for protocol implementation and test specification.

Annex B adds database-related service requirements, and Annex C provides the bibliography used by the document.

Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)

EUROPEAN STANDARD
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI);
Sub-part 15: Transport layer independent Additional Network
Feature, Mobility Management (ANF-ISIMM)

2 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)

Reference
REN/TCCE-03277
Keywords
management, mobility, TETRA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

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All rights reserved.
ETSI
3 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)
Contents
Intellectual Property Rights . 16
Foreword . 16
Modal verbs terminology . 17
1 Scope . 18
2 References . 19
2.1 Normative references . 19
2.2 Informative references . 20
3 Definition of terms, symbols and abbreviations . 20
3.1 Terms . 20
3.2 Symbols . 23
3.3 Abbreviations . 23
4 Overview . 25
4.1 General . 25
4.2 Applicability . 25
4.2.1 Entities . 25
4.2.2 Services . 25
4.3 Testability . 26
4.4 Provision/withdrawal. 26
4.5 Activation/deactivation . 26
4.6 Charging . 26
5 The generic ANF-ISIMM stage 1 service model . 26
5.1 ANF-ISIMM - the service provider . 26
5.2 SwMI MMs - the ANF-ISIMM service users. 27
5.3 Stage 1 description conventions . 28
6 Migration service description - stage 1 . 29
6.1 Pre-requisite requirements for the migration service . 29
6.2 Service definition . 29
6.3 Service description . 29
6.4 Service architecture . 30
6.5 Normal procedures . 31
6.5.1 Invocation . 31
6.5.1.1 Invocation criteria . 31
6.5.1.2 Invocation of ANF-ISIMM . 31
6.5.2 Operation . 33
6.5.2.1 General . 33
6.5.2.2 Migration with pre-defined migration profile(s) (applicable for case 1) . 34
6.5.2.2.1 Support for call restoration . 34
6.5.2.2.2 Final migration approval . 34
6.5.2.3 Migration with migration profile exchange (applicable for case 2, 3a and 3b) . 36
6.5.2.3.1 Basic migration profile exchange . 36
6.5.2.3.2 SS-migration profile(s) exchange (applicable for case 3a) . 46
6.5.2.3.3 Support for call restoration . 48
6.5.2.3.4 Final migration approval (applicable for cases 2), 3a) and 3b)) . 48
6.5.2.3.5 SS-migration profile exchange after final migration approval (applicable for case 3b)) . 49
6.6 Interactions . 49
6.6.1 Interactions with the authentication service . 49
6.6.2 Interactions with the group attachment and the group detachment services . 49
7 Restricted migration service description - stage 1 . 49
7.1 Pre-requisite requirements for the restricted migration service . 49
7.2 Service definition . 50
7.3 Service description . 50
7.4 Service architecture . 51
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4 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)
7.5 Normal procedures . 51
7.5.1 Invocation . 51
7.5.1.1 Invocation criteria . 51
7.5.1.2 Invocation of ANF-ISIMM . 52
7.5.2 Operation . 54
7.5.2.1 General . 54
7.5.2.2 Operation when the individual subscriber visited SwMI MM invokes restricted migration . 55
7.5.2.3 Invocation of RSI . 56
7.5.2.4 Support for emergency call restoration . 56
7.5.2.5 Receipt of restricted migration approval . 56
7.6 Exceptional procedures . 56
7.6.1 General . 56
7.6.2 Detected by the individual subscriber visited SwMI MM . 57
7.6.3 Detected by the individual subscriber home SwMI MM . 58
7.7 Interactions . 58
7.7.1 Interactions with the authentication service . 58
7.7.2 Interactions with the group attachment and the group detachment services . 58
8 Removal of Subscriber Information (RSI) service description - stage 1 . 58
8.1 Service definition . 58
8.2 Service description . 58
8.3 Service architecture . 59
8.4 Normal procedures . 59
8.4.1 Invocation . 59
8.4.1.1 Invocation criteria . 59
8.4.1.2 Invocation of ANF-ISIMM . 60
8.4.2 Operation . 61
8.5 Exceptional procedures . 63
8.6 Interaction with authentication . 64
9 De-registration service description - stage 1 . 64
9.1 Service definition . 64
9.2 Service description . 64
9.3 Service architecture . 64
9.4 Normal procedures . 65
9.4.1 Invocation . 65
9.4.1.1 Invocation criteria . 65
9.4.1.2 Invocation of ANF-ISIMM . 65
9.4.2 Operation . 66
9.5 Exceptional procedures . 67
10 Profile update service description - stage 1 . 68
10.1 Service definition . 68
10.2 Service description . 68
10.3 Service architecture . 68
10.4 Normal procedures . 69
10.4.1 Invocation . 69
10.4.1.1 Invocation criteria . 69
10.4.1.2 Invocation of ANF-ISIMM . 70
10.4.2 Operation . 80
10.5 Exceptional operation . 90
11 SS-profile update service description - stage 1 . 90
11.1 Service definition . 90
11.2 Service description . 91
11.3 Service architecture . 91
11.4 Normal procedures . 91
11.4.1 Invocation . 91
11.4.1.1 Invocation criteria . 91
11.4.1.2 Invocation of ANF-ISIMM . 92
11.4.2 Operation . 92
11.4.2.1 Creation of temporary SS-migration profiles . 92
11.4.2.2 Informing home SwMI MM about the temporary SS-migration profiles . 93
ETSI
5 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)
11.5 Exceptional operation . 94
12 Authentication service description - stage 1 . 95
12.1 Pre-requisite requirements for the authentication service. 95
12.2 Service definition . 96
12.3 Service description . 96
12.4 Service architecture . 96
12.5 Normal procedures . 96
12.5.1 Invocation . 96
12.5.1.1 Invocation criteria . 96
12.5.1.2 Invocation of ANF-ISIMM . 97
12.5.2 Operation (relevant for case 1) . 98
12.5.2.1 Exchange of authentication parameters . 98
12.5.2.2 Sending of authentication result . 98
12.6 Exceptional procedures . 99
12.6.1 General . 99
12.6.2 Detected by the individual subscriber visited SwMI MM . 100
12.6.3 Detected by the individual subscriber home SwMI MM . 100
12.7 Interaction with migration and restricted migration . 101
12.7.1 Normal operation . 101
12.7.2 Exceptional procedures . 101
13 Over The Air Re-keying (OTAR) service description - stage 1 . 102
13.1 Pre-requisite requirements . 102
13.2 Service definition . 102
13.3 Service description . 102
13.4 Service architecture . 103
13.5 Normal procedures . 103
13.5.1 Invocation . 103
13.5.1.1 Invocation criteria . 103
13.5.1.2 Invocation of ANF-ISIMM . 104
13.5.1.2.1 Case 1) . 104
13.5.1.2.2 Case 2) . 104
13.5.1.2.3 Case 3) . 104
13.5.1.2.4 Case 4) . 105
13.5.2 Operation . 105
13.5.2.1 Case 1) . 105
13.5.2.2 Case 2) . 106
13.5.2.3 Case 3) . 107
13.5.2.4 Case 4) . 108
13.6 Exceptional procedures . 108
13.6.1 General . 108
13.6.2 Detected by the individual subscriber visited SwMI MM . 109
13.6.3 Detected by the individual subscriber home SwMI MM . 110
14 Individual subscriber Database Recovery (IDR) service description - stage 1 . 110
14.1 Service definition . 110
14.2 Service description . 110
14.3 Service architecture . 111
14.4 Normal procedures . 111
14.4.1 Invocation . 111
14.4.1.1 Invocation criteria . 111
14.4.1.2 Invocation of ANF-ISIMM . 112
14.4.2 Operation (relevant for case 1 and 2 unless otherwise stated) . 114
14.4.2.1 The individual subscriber visited SwMI MM receives the HMM recovery indication . 114
14.4.2.2 The individual subscriber home SwMI MM receives the VMM recovery indication . 114
14.4.2.3 The virtual migration or restricted migration . 115
14.4.2.4 The virtual RSI . 115
14.4.2.5 The iteration . 116
14.4.2.6 The completion of the IDR . 116
14.4.2.6.1 VMM recovery . 116
14.4.2.6.2 HMM recovery . 116
14.5 Exceptional procedures . 117
ETSI
6 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)
15 Group attachment service description - stage 1 . 118
15.1 Service definition . 118
15.2 Service description . 118
15.3 Service architecture . 119
15.4 Normal procedures . 119
15.4.1 Invocation . 119
15.4.1.1 Invocation criteria . 119
15.4.1.2 Invocation of ANF-ISIMM . 121
15.4.1.2.1 Case 1) . 121
15.4.1.2.2 Cases 2) to 4) . 122
15.4.1.2.3 Case 5) . 123
15.4.1.2.4 Case 6) . 128
15.4.2 Operation . 129
15.4.2.1 Case 1) . 129
15.4.2.1.1 General . 129
15.4.2.1.2 Group attachment with pre-defined migration profile(s) . 130
15.4.2.1.3 Group attachment with migration profile exchange . 132
15.4.2.1.4 SS-migration profile(s) exchange . 137
15.4.2.2 Cases 2) to 4). 140
15.4.2.2.1 Updates to G-HDB . 140
15.4.2.2.2 Sending of group attachment approval . 140
15.4.2.2.3 Receipt of group attachment approval . 141
15.4.2.3 Case 5) . 141
15.4.2.3.1 General . 141
15.4.2.3.2 Group home SwMI MM initiated group attachment with pre-defined migration profile(s) . 141
15.4.2.3.3 Group home SwMI MM initiated group attachment with migration profile exchange . 143
15.4.2.4 Case 6) . 145
15.4.2.4.1 Additional Group home SwMI MM initiated group attachment . 145
15.5 Exceptional procedures . 146
15.5.1 General . 146
15.5.2 Detected by the group visited SwMI MM . 147
15.5.3 Detected by the group home SwMI MM . 148
15.6 Interactions . 148
16 Group detachment service description (stage 1) . 149
16.1 Service definition . 149
16.2 Service description . 150
16.3 Service architecture . 151
16.4 Normal procedures . 151
16.4.1 Invocation . 151
16.4.1.1 General . 151
16.4.1.2 Invocation of ANF-ISIMM . 152
16.4.1.2.1 Cases 1) to 3) . 152
16.4.1.2.2 Case 4) . 153
16.4.2 Operation . 154
16.4.2.1 Cases 1) to 3). 154
16.4.2.2 Case 4) . 155
16.5 Exceptional procedures . 156
16.6 Interactions . 157
17 Group Database Recovery (GDR) service description - stage 1 . 158
17.1 Service definition . 158
17.2 Service description . 158
17.3 Service architecture . 159
17.4 Normal procedures . 159
17.4.1 Invocation . 159
17.4.1.1 Invocation criteria . 159
17.4.1.2 Invocation of ANF-ISIMM . 160
17.4.2 Operation (applicable for cases 1) and 2) unless otherwise stated) . 161
17.4.2.1 Verification of age information . 161
17.4.2.2 The group visited SwMI MM receives the G-HDR indication . 162
17.4.2.3 The group home SwMI MM receives the G-VDR indication . 162
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7 Draft ETSI EN 300 392-3-15 V1.5.0 (2026-04)
17.4.2.4 The virtual group attachment and detachment . 163
17.4.2.5 The iteration . 164
17.4.2.6 The completion of the GDR . 164
17.4.2.6.1 G-HDR . 164
17.4.2.6.2 G-VDR . 164
17.5 Exceptional procedures . 165
18 Group linking/unlinking service description - stage 1 . 166
18.1 Service definition . 166
18.2 Service description . 167
18.3 Service architecture . 167
18.4 Normal procedures . 168
18.4.1 Invocation . 168
18.4.1.1 Invocation criteria . 168
18.4.1.2 Invocation of ANF-ISIMM . 168
18.4.1.2.1 Case 1) - group linking service - Sending of Linking_req . 168
18.4.1.2.2 Case 2) - group unlinking service . 169
18.4.1.2.3 Case 3) - remote group unlinking service . 169
18.4.2 Operation . 170
18.4.2.1 General . 170
18.4.2.2 Case 1) - group linking service . 170
18.4.2.2.1 First phase of group linking service. 170
18.4.2.2.2 Second phase of group linking service . 171
18.4.2.3 Case 2) - group unlinking service . 173
18.4.2.4 Case 3) - remote group unlinking service . 174
18.5 Exceptional procedures . 174
18.5.1 General . 174
18.5.2 Case 1) - group linking service . 174
18.5.3 Case 2) - group unlinking service . 175
18.5.4 Case 3) - remote group unlinking service . 176
18.6 Interactions .
...

EUROPEAN STANDARD
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI);
Sub-part 15: Transport layer independent Additional Network
Feature, Mobility Management (ANF-ISIMM)

2 ETSI EN 300 392-3-15 V1.5.1 (2026-07)

Reference
REN/TCCE-03277
Keywords
management, mobility, TETRA
ETSI
650 Route des Lucioles
F-06921 Sophia Antipolis Cedex - FRANCE

Tel.: [phone]  Fax: [phone]

Siret N° 348 623 562 00017 - APE 7112B
Association à but non lucratif enregistrée à la
Sous-Préfecture de Grasse (06) N° w061004871

Important notice
The present document can be downloaded from the
ETSI Search & Browse Standards application.
The present document may be made available in electronic versions and/or in print. The content of any electronic and/or
print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any
existing or perceived difference in contents between such versions and/or in print, the prevailing version of an ETSI
deliverable is the one made publicly available in PDF format on ETSI deliver repository.
Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
Contents
Intellectual Property Rights . 16
Foreword . 16
Modal verbs terminology . 18
1 Scope . 19
2 References . 20
2.1 Normative references . 20
2.2 Informative references . 21
3 Definition of terms, symbols and abbreviations . 21
3.1 Terms . 21
3.2 Symbols . 24
3.3 Abbreviations . 24
4 Overview . 26
4.1 General . 26
4.2 Applicability . 26
4.2.1 Entities . 26
4.2.2 Services . 26
4.3 Testability . 27
4.4 Provision/withdrawal. 27
4.5 Activation/deactivation . 27
4.6 Charging . 27
5 The generic ANF-ISIMM stage 1 service model . 27
5.1 ANF-ISIMM - the service provider . 27
5.2 SwMI MMs - the ANF-ISIMM service users. 28
5.3 Stage 1 description conventions . 29
6 Migration service description - stage 1 . 30
6.1 Pre-requisite requirements for the migration service . 30
6.2 Service definition . 30
6.3 Service description . 30
6.4 Service architecture . 31
6.5 Normal procedures . 32
6.5.1 Invocation . 32
6.5.1.1 Invocation criteria . 32
6.5.1.2 Invocation of ANF-ISIMM . 32
6.5.2 Operation . 34
6.5.2.1 General . 34
6.5.2.2 Migration with pre-defined migration profile(s) (applicable for case 1) . 35
6.5.2.2.1 Support for call restoration . 35
6.5.2.2.2 Final migration approval . 35
6.5.2.3 Migration with migration profile exchange (applicable for case 2, 3a and 3b) . 37
6.5.2.3.1 Basic migration profile exchange . 37
6.5.2.3.2 SS-migration profile(s) exchange (applicable for case 3a) . 47
6.5.2.3.3 Support for call restoration . 49
6.5.2.3.4 Final migration approval (applicable for cases 2), 3a) and 3b)) . 49
6.5.2.3.5 SS-migration profile exchange after final migration approval (applicable for case 3b)) . 49
6.6 Interactions . 50
6.6.1 Interactions with the authentication service . 50
6.6.2 Interactions with the group attachment and the group detachment services . 50
7 Restricted migration service description - stage 1 . 50
7.1 Pre-requisite requirements for the restricted migration service . 50
7.2 Service definition . 50
7.3 Service description . 51
7.4 Service architecture . 52
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4 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
7.5 Normal procedures . 52
7.5.1 Invocation . 52
7.5.1.1 Invocation criteria . 52
7.5.1.2 Invocation of ANF-ISIMM . 53
7.5.2 Operation . 55
7.5.2.1 General . 55
7.5.2.2 Operation when the individual subscriber visited SwMI MM invokes restricted migration . 56
7.5.2.3 Invocation of RSI . 57
7.5.2.4 Support for emergency call restoration . 57
7.5.2.5 Receipt of restricted migration approval . 57
7.6 Exceptional procedures . 57
7.6.1 General . 57
7.6.2 Detected by the individual subscriber visited SwMI MM . 58
7.6.3 Detected by the individual subscriber home SwMI MM . 59
7.7 Interactions . 59
7.7.1 Interactions with the authentication service . 59
7.7.2 Interactions with the group attachment and the group detachment services . 59
8 Removal of Subscriber Information (RSI) service description - stage 1 . 59
8.1 Service definition . 59
8.2 Service description . 59
8.3 Service architecture . 60
8.4 Normal procedures . 60
8.4.1 Invocation . 60
8.4.1.1 Invocation criteria . 60
8.4.1.2 Invocation of ANF-ISIMM . 61
8.4.2 Operation . 62
8.5 Exceptional procedures . 64
8.6 Interaction with authentication . 65
9 De-registration service description - stage 1 . 65
9.1 Service definition . 65
9.2 Service description . 65
9.3 Service architecture . 65
9.4 Normal procedures . 66
9.4.1 Invocation . 66
9.4.1.1 Invocation criteria . 66
9.4.1.2 Invocation of ANF-ISIMM . 66
9.4.2 Operation . 67
9.5 Exceptional procedures . 68
10 Profile update service description - stage 1 . 69
10.1 Service definition . 69
10.2 Service description . 69
10.3 Service architecture . 69
10.4 Normal procedures . 70
10.4.1 Invocation . 70
10.4.1.1 Invocation criteria . 70
10.4.1.2 Invocation of ANF-ISIMM . 71
10.4.2 Operation . 81
10.5 Exceptional operation . 91
11 SS-profile update service description - stage 1 . 91
11.1 Service definition . 91
11.2 Service description . 92
11.3 Service architecture . 92
11.4 Normal procedures . 92
11.4.1 Invocation . 92
11.4.1.1 Invocation criteria . 92
11.4.1.2 Invocation of ANF-ISIMM . 93
11.4.2 Operation . 93
11.4.2.1 Creation of temporary SS-migration profiles . 93
11.4.2.2 Informing home SwMI MM about the temporary SS-migration profiles . 94
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5 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
11.5 Exceptional operation . 95
12 Authentication service description - stage 1 . 96
12.1 Pre-requisite requirements for the authentication service. 96
12.2 Service definition . 97
12.3 Service description . 97
12.4 Service architecture . 97
12.5 Normal procedures . 97
12.5.1 Invocation . 97
12.5.1.1 Invocation criteria . 97
12.5.1.2 Invocation of ANF-ISIMM . 98
12.5.2 Operation (relevant for case 1) . 99
12.5.2.1 Exchange of authentication parameters . 99
12.5.2.2 Sending of authentication result . 99
12.6 Exceptional procedures . 100
12.6.1 General . 100
12.6.2 Detected by the individual subscriber visited SwMI MM . 101
12.6.3 Detected by the individual subscriber home SwMI MM . 101
12.7 Interaction with migration and restricted migration . 102
12.7.1 Normal operation . 102
12.7.2 Exceptional procedures . 102
13 Over The Air Re-keying (OTAR) service description - stage 1 . 103
13.1 Pre-requisite requirements . 103
13.2 Service definition . 103
13.3 Service description . 103
13.4 Service architecture . 104
13.5 Normal procedures . 104
13.5.1 Invocation . 104
13.5.1.1 Invocation criteria . 104
13.5.1.2 Invocation of ANF-ISIMM . 105
13.5.1.2.1 Case 1) . 105
13.5.1.2.2 Case 2) . 105
13.5.1.2.3 Case 3) . 105
13.5.1.2.4 Case 4) . 106
13.5.2 Operation . 106
13.5.2.1 Case 1) . 106
13.5.2.2 Case 2) . 107
13.5.2.3 Case 3) . 108
13.5.2.4 Case 4) . 109
13.6 Exceptional procedures . 109
13.6.1 General . 109
13.6.2 Detected by the individual subscriber visited SwMI MM . 110
13.6.3 Detected by the individual subscriber home SwMI MM . 111
14 Individual subscriber Database Recovery (IDR) service description - stage 1 . 111
14.1 Service definition . 111
14.2 Service description . 111
14.3 Service architecture . 112
14.4 Normal procedures . 112
14.4.1 Invocation . 112
14.4.1.1 Invocation criteria . 112
14.4.1.2 Invocation of ANF-ISIMM . 113
14.4.2 Operation (relevant for case 1 and 2 unless otherwise stated) . 115
14.4.2.1 The individual subscriber visited SwMI MM receives the HMM recovery indication . 115
14.4.2.2 The individual subscriber home SwMI MM receives the VMM recovery indication . 115
14.4.2.3 The virtual migration or restricted migration . 116
14.4.2.4 The virtual RSI . 116
14.4.2.5 The iteration . 117
14.4.2.6 The completion of the IDR . 117
14.4.2.6.1 VMM recovery . 117
14.4.2.6.2 HMM recovery . 117
14.5 Exceptional procedures . 118
ETSI
6 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
15 Group attachment service description - stage 1 . 119
15.1 Service definition . 119
15.2 Service description . 119
15.3 Service architecture . 120
15.4 Normal procedures . 120
15.4.1 Invocation . 120
15.4.1.1 Invocation criteria . 120
15.4.1.2 Invocation of ANF-ISIMM . 122
15.4.1.2.1 Case 1) . 122
15.4.1.2.2 Cases 2) to 4) . 123
15.4.1.2.3 Case 5) . 124
15.4.1.2.4 Case 6) . 129
15.4.2 Operation . 130
15.4.2.1 Case 1) . 130
15.4.2.1.1 General . 130
15.4.2.1.2 Group attachment with pre-defined migration profile(s) . 131
15.4.2.1.3 Group attachment with migration profile exchange . 133
15.4.2.1.4 SS-migration profile(s) exchange . 138
15.4.2.2 Cases 2) to 4). 141
15.4.2.2.1 Updates to G-HDB . 141
15.4.2.2.2 Sending of group attachment approval . 141
15.4.2.2.3 Receipt of group attachment approval . 142
15.4.2.3 Case 5) . 142
15.4.2.3.1 General . 142
15.4.2.3.2 Group home SwMI MM initiated group attachment with pre-defined migration profile(s) . 142
15.4.2.3.3 Group home SwMI MM initiated group attachment with migration profile exchange . 144
15.4.2.4 Case 6) . 146
15.4.2.4.1 Additional Group home SwMI MM initiated group attachment . 146
15.5 Exceptional procedures . 147
15.5.1 General . 147
15.5.2 Detected by the group visited SwMI MM . 148
15.5.3 Detected by the group home SwMI MM . 149
15.6 Interactions . 149
16 Group detachment service description (stage 1) . 150
16.1 Service definition . 150
16.2 Service description . 151
16.3 Service architecture . 152
16.4 Normal procedures . 152
16.4.1 Invocation . 152
16.4.1.1 General . 152
16.4.1.2 Invocation of ANF-ISIMM . 153
16.4.1.2.1 Cases 1) to 3) . 153
16.4.1.2.2 Case 4) . 154
16.4.2 Operation . 155
16.4.2.1 Cases 1) to 3). 155
16.4.2.2 Case 4) . 156
16.5 Exceptional procedures . 157
16.6 Interactions . 158
17 Group Database Recovery (GDR) service description - stage 1 . 159
17.1 Service definition . 159
17.2 Service description . 159
17.3 Service architecture . 160
17.4 Normal procedures . 160
17.4.1 Invocation . 160
17.4.1.1 Invocation criteria . 160
17.4.1.2 Invocation of ANF-ISIMM . 161
17.4.2 Operation (applicable for cases 1) and 2) unless otherwise stated) . 162
17.4.2.1 Verification of age information . 162
17.4.2.2 The group visited SwMI MM receives the G-HDR indication . 163
17.4.2.3 The group home SwMI MM receives the G-VDR indication . 163
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7 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
17.4.2.4 The virtual group attachment and detachment . 164
17.4.2.5 The iteration . 165
17.4.2.6 The completion of the GDR . 165
17.4.2.6.1 G-HDR . 165
17.4.2.6.2 G-VDR . 165
17.5 Exceptional procedures . 166
18 Group linking/unlinking service description - stage 1 . 167
18.1 Service definition . 167
18.2 Service description . 168
18.3 Service architecture . 168
18.4 Normal procedures . 169
18.4.1 Invocation . 169
18.4.1.1 Invocation criteria . 169
18.4.1.2 Invocation of ANF-ISIMM . 169
18.4.1.2.1 Case 1) - group linking service - Sending of Linking_req . 169
18.4.1.2.2 Case 2) - group unlinking service . 170
18.4.1.2.3 Case 3) - remote group unlinking service . 170
18.4.2 Operation . 171
18.4.2.1 General . 171
18.4.2.2 Case 1) - group linking service . 171
18.4.2.2.1 First phase of group linking service. 171
18.4.2.2.2 Second phase of group linking service . 172
18.4.2.3 Case 2) - group unlinking service . 174
18.4.2.4 Case 3) - remote group unlinking service . 175
18.5 Exceptional procedures . 175
18.5.1 General . 175
18.5.2 Case 1) - group linking service . 175
18.5.3 Case 2) - group unlinking service .
...

SLOVENSKI STANDARD
01-september-2026
Prizemni snopovni radio (TETRA) - Govor in podatki (V+D) - 3. del: Medsebojno
delovanje na medsistemskem vmesniku (ISI) - 15. poddel: Neodvisnost
transportnih plasti dodatne omrežne funkcije, upravljanje mobilnosti (ANF-ISIMM)
Terrestrial Trunked Radio (TETRA) - Voice plus Data (V+D) - Part 3: Interworking at the
Inter-System Interface (ISI) - Sub-part 15: Transport layer independent Additional
Network Feature, Mobility Management (ANF-ISIMM)
Ta slovenski standard je istoveten z: ETSI EN 300 392-3-15 V1.5.1 (2026-07)
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
35.100.40 Transportni sloj Transport layer
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI);
Sub-part 15: Transport layer independent Additional Network
Feature, Mobility Management (ANF-ISIMM)

2 ETSI EN 300 392-3-15 V1.5.1 (2026-07)

Reference
REN/TCCE-03277
Keywords
management, mobility, TETRA
ETSI
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Users should be aware that the present document may be revised or have its status changed,
this information is available in the Milestones listing.
If you find errors in the present document, please send your comments to
the relevant service listed under Committee Support Staff.
If you find a security vulnerability in the present document, please report it through our
Coordinated Vulnerability Disclosure (CVD) program.
Notice of disclaimer & limitation of liability
The information provided in the present deliverable is directed solely to professionals who have the appropriate degree of
experience to understand and interpret its content in accordance with generally accepted engineering or
other professional standard and applicable regulations.
No recommendation as to products and services or vendors is made or should be implied.
In no event shall ETSI be held liable for loss of profits or any other incidental or consequential damages.

Any software contained in this deliverable is provided "AS IS" with no warranties, express or implied, including but not
limited to, the warranties of merchantability, fitness for a particular purpose and non-infringement of intellectual property
rights and ETSI shall not be held liable in any event for any damages whatsoever (including, without limitation, damages
for loss of profits, business interruption, loss of information, or any other pecuniary loss) arising out of or related to the use
of or inability to use the software.
Copyright Notification
No part of this document may be reproduced in any form, by any means and in any media, without the prior written
authorization of ETSI and except as expressly permitted below.
By way of exception and when the document is a normative deliverable (European Standard (EN),
Technical Specification (TS), Group Specification (GS) or ETSI Standard (ES)), ETSI authorizes to reproduce
and incorporate into products, services and technical documentation only those extracts (e.g. templates) that are strictly
necessary for the technical implementation of the normative deliverable, to ensure compliance with the latter.
Nothing in this notice shall be construed as limiting any mandatory exceptions to copyright provided by applicable law.

© ETSI 2026.
All rights reserved.
ETSI
3 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
Contents
Intellectual Property Rights . 16
Foreword . 16
Modal verbs terminology . 18
1 Scope . 19
2 References . 20
2.1 Normative references . 20
2.2 Informative references . 21
3 Definition of terms, symbols and abbreviations . 21
3.1 Terms . 21
3.2 Symbols . 24
3.3 Abbreviations . 24
4 Overview . 26
4.1 General . 26
4.2 Applicability . 26
4.2.1 Entities . 26
4.2.2 Services . 26
4.3 Testability . 27
4.4 Provision/withdrawal. 27
4.5 Activation/deactivation . 27
4.6 Charging . 27
5 The generic ANF-ISIMM stage 1 service model . 27
5.1 ANF-ISIMM - the service provider . 27
5.2 SwMI MMs - the ANF-ISIMM service users. 28
5.3 Stage 1 description conventions . 29
6 Migration service description - stage 1 . 30
6.1 Pre-requisite requirements for the migration service . 30
6.2 Service definition . 30
6.3 Service description . 30
6.4 Service architecture . 31
6.5 Normal procedures . 32
6.5.1 Invocation . 32
6.5.1.1 Invocation criteria . 32
6.5.1.2 Invocation of ANF-ISIMM . 32
6.5.2 Operation . 34
6.5.2.1 General . 34
6.5.2.2 Migration with pre-defined migration profile(s) (applicable for case 1) . 35
6.5.2.2.1 Support for call restoration . 35
6.5.2.2.2 Final migration approval . 35
6.5.2.3 Migration with migration profile exchange (applicable for case 2, 3a and 3b) . 37
6.5.2.3.1 Basic migration profile exchange . 37
6.5.2.3.2 SS-migration profile(s) exchange (applicable for case 3a) . 47
6.5.2.3.3 Support for call restoration . 49
6.5.2.3.4 Final migration approval (applicable for cases 2), 3a) and 3b)) . 49
6.5.2.3.5 SS-migration profile exchange after final migration approval (applicable for case 3b)) . 49
6.6 Interactions . 50
6.6.1 Interactions with the authentication service . 50
6.6.2 Interactions with the group attachment and the group detachment services . 50
7 Restricted migration service description - stage 1 . 50
7.1 Pre-requisite requirements for the restricted migration service . 50
7.2 Service definition . 50
7.3 Service description . 51
7.4 Service architecture . 52
ETSI
4 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
7.5 Normal procedures . 52
7.5.1 Invocation . 52
7.5.1.1 Invocation criteria . 52
7.5.1.2 Invocation of ANF-ISIMM . 53
7.5.2 Operation . 55
7.5.2.1 General . 55
7.5.2.2 Operation when the individual subscriber visited SwMI MM invokes restricted migration . 56
7.5.2.3 Invocation of RSI . 57
7.5.2.4 Support for emergency call restoration . 57
7.5.2.5 Receipt of restricted migration approval . 57
7.6 Exceptional procedures . 57
7.6.1 General . 57
7.6.2 Detected by the individual subscriber visited SwMI MM . 58
7.6.3 Detected by the individual subscriber home SwMI MM . 59
7.7 Interactions . 59
7.7.1 Interactions with the authentication service . 59
7.7.2 Interactions with the group attachment and the group detachment services . 59
8 Removal of Subscriber Information (RSI) service description - stage 1 . 59
8.1 Service definition . 59
8.2 Service description . 59
8.3 Service architecture . 60
8.4 Normal procedures . 60
8.4.1 Invocation . 60
8.4.1.1 Invocation criteria . 60
8.4.1.2 Invocation of ANF-ISIMM . 61
8.4.2 Operation . 62
8.5 Exceptional procedures . 64
8.6 Interaction with authentication . 65
9 De-registration service description - stage 1 . 65
9.1 Service definition . 65
9.2 Service description . 65
9.3 Service architecture . 65
9.4 Normal procedures . 66
9.4.1 Invocation . 66
9.4.1.1 Invocation criteria . 66
9.4.1.2 Invocation of ANF-ISIMM . 66
9.4.2 Operation . 67
9.5 Exceptional procedures . 68
10 Profile update service description - stage 1 . 69
10.1 Service definition . 69
10.2 Service description . 69
10.3 Service architecture . 69
10.4 Normal procedures . 70
10.4.1 Invocation . 70
10.4.1.1 Invocation criteria . 70
10.4.1.2 Invocation of ANF-ISIMM . 71
10.4.2 Operation . 81
10.5 Exceptional operation . 91
11 SS-profile update service description - stage 1 . 91
11.1 Service definition . 91
11.2 Service description . 92
11.3 Service architecture . 92
11.4 Normal procedures . 92
11.4.1 Invocation . 92
11.4.1.1 Invocation criteria . 92
11.4.1.2 Invocation of ANF-ISIMM . 93
11.4.2 Operation . 93
11.4.2.1 Creation of temporary SS-migration profiles . 93
11.4.2.2 Informing home SwMI MM about the temporary SS-migration profiles . 94
ETSI
5 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
11.5 Exceptional operation . 95
12 Authentication service description - stage 1 . 96
12.1 Pre-requisite requirements for the authentication service. 96
12.2 Service definition . 97
12.3 Service description . 97
12.4 Service architecture . 97
12.5 Normal procedures . 97
12.5.1 Invocation . 97
12.5.1.1 Invocation criteria . 97
12.5.1.2 Invocation of ANF-ISIMM . 98
12.5.2 Operation (relevant for case 1) . 99
12.5.2.1 Exchange of authentication parameters . 99
12.5.2.2 Sending of authentication result . 99
12.6 Exceptional procedures . 100
12.6.1 General . 100
12.6.2 Detected by the individual subscriber visited SwMI MM . 101
12.6.3 Detected by the individual subscriber home SwMI MM . 101
12.7 Interaction with migration and restricted migration . 102
12.7.1 Normal operation . 102
12.7.2 Exceptional procedures . 102
13 Over The Air Re-keying (OTAR) service description - stage 1 . 103
13.1 Pre-requisite requirements . 103
13.2 Service definition . 103
13.3 Service description . 103
13.4 Service architecture . 104
13.5 Normal procedures . 104
13.5.1 Invocation . 104
13.5.1.1 Invocation criteria . 104
13.5.1.2 Invocation of ANF-ISIMM . 105
13.5.1.2.1 Case 1) . 105
13.5.1.2.2 Case 2) . 105
13.5.1.2.3 Case 3) . 105
13.5.1.2.4 Case 4) . 106
13.5.2 Operation . 106
13.5.2.1 Case 1) . 106
13.5.2.2 Case 2) . 107
13.5.2.3 Case 3) . 108
13.5.2.4 Case 4) . 109
13.6 Exceptional procedures . 109
13.6.1 General . 109
13.6.2 Detected by the individual subscriber visited SwMI MM . 110
13.6.3 Detected by the individual subscriber home SwMI MM . 111
14 Individual subscriber Database Recovery (IDR) service description - stage 1 . 111
14.1 Service definition . 111
14.2 Service description . 111
14.3 Service architecture . 112
14.4 Normal procedures . 112
14.4.1 Invocation . 112
14.4.1.1 Invocation criteria . 112
14.4.1.2 Invocation of ANF-ISIMM . 113
14.4.2 Operation (relevant for case 1 and 2 unless otherwise stated) . 115
14.4.2.1 The individual subscriber visited SwMI MM receives the HMM recovery indication . 115
14.4.2.2 The individual subscriber home SwMI MM receives the VMM recovery indication . 115
14.4.2.3 The virtual migration or restricted migration . 116
14.4.2.4 The virtual RSI . 116
14.4.2.5 The iteration . 117
14.4.2.6 The completion of the IDR . 117
14.4.2.6.1 VMM recovery . 117
14.4.2.6.2 HMM recovery . 117
14.5 Exceptional procedures . 118
ETSI
6 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
15 Group attachment service description - stage 1 . 119
15.1 Service definition . 119
15.2 Service description . 119
15.3 Service architecture . 120
15.4 Normal procedures . 120
15.4.1 Invocation . 120
15.4.1.1 Invocation criteria . 120
15.4.1.2 Invocation of ANF-ISIMM . 122
15.4.1.2.1 Case 1) . 122
15.4.1.2.2 Cases 2) to 4) . 123
15.4.1.2.3 Case 5) . 124
15.4.1.2.4 Case 6) . 129
15.4.2 Operation . 130
15.4.2.1 Case 1) . 130
15.4.2.1.1 General . 130
15.4.2.1.2 Group attachment with pre-defined migration profile(s) . 131
15.4.2.1.3 Group attachment with migration profile exchange . 133
15.4.2.1.4 SS-migration profile(s) exchange . 138
15.4.2.2 Cases 2) to 4). 141
15.4.2.2.1 Updates to G-HDB . 141
15.4.2.2.2 Sending of group attachment approval . 141
15.4.2.2.3 Receipt of group attachment approval . 142
15.4.2.3 Case 5) . 142
15.4.2.3.1 General . 142
15.4.2.3.2 Group home SwMI MM initiated group attachment with pre-defined migration profile(s) . 142
15.4.2.3.3 Group home SwMI MM initiated group attachment with migration profile exchange . 144
15.4.2.4 Case 6) . 146
15.4.2.4.1 Additional Group home SwMI MM initiated group attachment . 146
15.5 Exceptional procedures . 147
15.5.1 General . 147
15.5.2 Detected by the group visited SwMI MM . 148
15.5.3 Detected by the group home SwMI MM . 149
15.6 Interactions . 149
16 Group detachment service description (stage 1) . 150
16.1 Service definition . 150
16.2 Service description . 151
16.3 Service architecture . 152
16.4 Normal procedures . 152
16.4.1 Invocation . 152
16.4.1.1 General . 152
16.4.1.2 Invocation of ANF-ISIMM . 153
16.4.1.2.1 Cases 1) to 3) . 153
16.4.1.2.2 Case 4) . 154
16.4.2 Operation . 155
16.4.2.1 Cases 1) to 3). 155
16.4.2.2 Case 4) . 156
16.5 Exceptional procedures . 157
16.6 Interactions . 158
17 Group Database Recovery (GDR) service description - stage 1 . 159
17.1 Service definition . 159
17.2 Service description . 159
17.3 Service architecture . 160
17.4 Normal procedures . 160
17.4.1 Invocation . 160
17.4.1.1 Invocation criteria . 160
17.4.1.2 Invocation of ANF-ISIMM . 161
17.4.2 Operation (applicable for cases 1) and 2) unless otherwise stated) . 162
17.4.2.1 Verification of age information . 162
17.4.2.2 The group visited SwMI MM receives the G-HDR indication . 163
17.4.2.3 The group home SwMI MM receives the G-VDR indication . 163
ETSI
7 ETSI EN 300 392-3-15 V1.5.1 (2026-07)
17.4.2.4 The virtual group attachment and detachment . 164
17.4.2.5 The iteration . 165
17.4.2.6 The completion of the GDR . 165
17.4.2.6.1 G-HDR . 165
17.4.2.6.2 G-VDR . 165
17.5 Exceptional procedures . 166
18 Group linking/unlinking service description - stage 1 . 167
18.1 Service definition . 167
18.2 Service description . 168
18.3 Service architecture . 168
18.4 Normal procedures . 169
18.4.1 Invocation . 169
18.4.1.1 Invocation criteria . 169
18.4.1.2 Invocation of ANF-ISIMM . 169
18.4.1.2.1 Case 1) - group linking service - Sending of Linking_req . 169
18.4.1.2.2 Case 2) - group unlinking service . 170
18.4.1.2.3 Case 3) - remote group unlinking service . 170
18.4.2 Operation . 171
18.4.2.1 General . 171
18.4.2.2 Case 1) - group linking service .
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