ETSI EN 300 392-12-3 V1.3.1 (2006-04)

SLOVENSKI STANDARD
01-julij-2006
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Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 12: Supplementary
services stage 3; Sub-part 3: Talking Party Identification (TPI)
Ta slovenski standard je istoveten z: EN 300 392-12-3 Version 1.3.1
ICS:
33.070.10 Prizemni snopovni radio Terrestrial Trunked Radio
(TETRA) (TETRA)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)

Terrestrial Trunked Radio (TETRA);
Voice plus Data (V+D);
Part 12: Supplementary services stage 3;
Sub-part 3: Talking Party Identification (TPI)

2 ETSI EN 300 392-12-3 V1.3.1 (2006-04)

Reference
REN/TETRA-03167
Keywords
air interface, TETRA, V+D
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ETSI
3 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
Contents
Intellectual Property Rights.6
Foreword.6
1 Scope.8
2 References.8
3 Definitions and abbreviations.9
3.1 Definitions.9
3.2 Abbreviations.10
4 SS-TPI service description .10
4.1 General.10
4.2 SS-TPI services offered over the TNSSSAP.10
4.2.1 ACTIVATE indication.11
4.2.2 ACTIVATE request.12
4.2.3 DEFINE indication.12
4.2.4 DEFINE request.12
4.2.5 INFORM indication.13
4.2.6 INTERROGATE indication.13
4.2.7 INTERROGATE request.13
4.2.8 INTERROGATE BY NAME indication .14
4.2.9 INTERROGATE BY NAME request.14
4.3 Parameter description.14
5 Signalling protocol for the support of SS-TPI.18
5.1 SS-TPI operational requirements .18
5.1.1 Served user MS.18
5.1.2 Group controlling SwMI.18
5.1.3 Served user SwMI.18
5.1.4 Talking/sending user SwMI.18
5.1.5 Authorized user MS.18
5.1.6 Authorized user SwMI.19
5.1.7 Managed user home SwMI .19
5.2 Coding requirements.19
5.2.1 SS-TPI PDUs.19
5.2.1.1 ACTIVATE PDU.19
5.2.1.2 ACTIVATE ACK PDU .20
5.2.1.3 DEFINE PDU.20
5.2.1.4 DEFINE ACK PDU .21
5.2.1.5 INFORM PDU.21
5.2.1.6 INTERROGATE PDU.24
5.2.1.7 INTERROGATE ACK PDU .25
5.2.1.8 INTERROGATE BY NAME PDU.26
5.2.1.9 INTERROGATE BY NAME ACK PDU .27
5.2.1.10 NAME REQ PDU.27
5.2.1.11 NAME ACK PDU.28
5.2.1.12 NAME REQ BIS PDU.28
5.2.1.13 TX PRIORITY REQUEST PDU .29
5.2.1.14 TX DEMAND PRIORITY PDU.29
5.2.2 TETRA PDU information element coding .29
5.2.2.1 Activated/defined/interrogated party short number address.29
5.2.2.2 Activated/defined/interrogated/talking/sending party short subscriber identity.29
5.2.2.3 Activated/defined/interrogated/talking/sending party extension.29
5.2.2.4 Activation failure cause.29
5.2.2.5 Activation request.29
5.2.2.6 Activation result.30
5.2.2.7 Activation state.31
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4 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
5.2.2.8 Address type of activated/defined/interrogated/talking/sending party.31
5.2.2.9 Void.32
5.2.2.10 Definition failure cause .32
5.2.2.11 Definition result.32
5.2.2.12 Void.32
5.2.2.13 External talking/sending party number digit .32
5.2.2.14 Interrogation failure cause.33
5.2.2.15 Interrogation by name failure cause .33
5.2.2.16 Interrogation result.33
5.2.2.17 Length of the mnemonic name.34
5.2.2.18 Multiple user mask and Multiple user mask present .34
5.2.2.19 Mnemonic name character string .34
5.2.2.19a Number of external talking/sending party number digits.34
5.2.2.20 Range type for activated/defined/interrogated party/parties or for mnemonic name/names .34
5.2.2.21 SS-CLIR invoked for talking/sending party.34
5.2.2.22 Text encoding scheme.34
5.2.2.23 TPI PDU type.35
5.2.2.24 TX demand priority.35
5.2.2.25 SS-TPI profile.36
5.2.2.26 SS-TPI profile ACK information element.36
5.2.3 Additional coding requirements over the ISI.36
5.3 SS-TPI state definitions.37
5.3.1 States at the served user MS .37
5.3.2 States at the group controlling SwMI .37
5.3.2.1 State for SS-TPI activation, deactivation, definition or interrogation.37
5.3.2.2 States for SS-TPI invocation and operation .37
5.3.2.2.1 TPI-Idle.37
5.3.2.2.2 TPI-Activated.37
5.3.2.2.3 TPI-Option-TX-Priority.37
5.3.2.2.4 TPI-Option-Name.37
5.3.2.2.5 TPI-Options-Name-and-TX-Priority.38
5.3.2.2.6 TPI-Option-Name-Caller-Name-Waiting.38
5.3.2.2.7 TPI-Options-Name-and-TX-Priority-Caller-Name-Waiting.38
5.3.3 Served user SwMI.38
5.3.3.1 TPI-Idle.38
5.3.3.2 TPI-Activated.38
5.3.3.3 TPI-Option-TX-Priority.38
5.3.3.4 TPI-Option-Name-Requested.38
5.3.3.5 TPI-Options-Name-and-TX-Priority.38
5.3.4 Talking/sending user SwMI.38
5.3.4.1 TPI-Idle.39
5.3.4.2 TPI-Name-Requested.39
5.3.4.3 TPI-TX-Priority-Requested.39
5.3.5 Authorized user MS.39
5.3.6 Authorized user SwMI.39
5.3.7 Managed user home SwMI .39
5.4 SS-TPI signalling procedures.39
5.4.1 Actions at the served user MS .39
5.4.1.1 Normal procedures.39
5.4.1.2 Exceptional procedures.41
5.4.2 Actions at the group controlling SwMI.41
5.4.2.1 Normal procedures.41
5.4.2.2 Exceptional procedures.42
5.4.3 Actions at the served user SwMI .43
5.4.3.1 Normal procedures.43
5.4.3.1.1 Individual call.43
5.4.3.1.2 Group call.45
5.4.3.2 Exceptional procedures.45
5.4.4 Actions at the talking/sending user SwMI .46
5.4.4.1 Normal procedures.46
5.4.4.1.1 Group call.46
5.4.4.1.2 Individual call.46
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5 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
5.4.4.2 Exceptional procedures.47
5.4.5 Actions at authorized user MS.47
5.4.5.1 Normal procedures.47
5.4.5.2 Exceptional procedures.47
5.4.6 Actions at the authorized user SwMI.48
5.4.7 Actions at the managed user home SwMI .48
5.4.7.1 Normal procedures.48
5.4.7.1.1 Case where the managed user home SwMI coincides with the authorized user SwMI.48
5.4.7.1.2 Case where the managed user home SwMI is different from the authorized user SwMI.48
5.4.7.2 Exceptional procedures.48
5.5 SS-TPI impact of interworking with other networks.49
5.6 Protocol interactions between SS-TPI and other supplementary services and ANFs.50
5.6.1 Interaction with Calling Line Identification Presentation (SS-CLIP) .50
5.6.2 Interactions with Calling/Connected Line Identification Restriction (SS-CLIR) .50
5.6.3 Interactions with Call Authorized by Dispatcher (SS-CAD) .51
5.6.3.1 Individual call.51
5.6.3.2 Group call.52
5.6.4 Interactions with Connected Line identification Presentation (SS-COLP).52
5.6.5 Interactions with ISI Mobility Management (ANF-ISIMM) .52
5.7 SS-TPI parameter values (timers) .53
Annex A (informative): Examples of message sequences.54
A.1 Example message sequence for normal operation of SS-TPI in a group call in the case where
transmission is not granted automatically at set-up time.54
A.2 Example message sequence for normal operation of SS-TPI in a group call where transmission is
granted automatically to the calling user at set-up time .54
A.3 Example message sequence for normal operation of SS-TPI in a group call where transmission is
granted automatically to another user than the calling user at set-up time.55
A.4 Example message sequence for exceptional operation of SS-TPI in a group call where the
originating SwMI does not support the sending of name.55
A.5 Example message sequence for normal operation of SS-TPI in an individual call for the calling
user .60
A.6 Example message sequence for normal operation of SS-TPI in an individual call for the
connected user.61
Annex B (informative): Specification and Description Language (SDL) representation of
procedures .62
B.1 SDL representation of SS-TPI at the served user MS .63
B.2 SDL representation of SS-TPI at the group controlling SwMI .65
B.3 SDL representation of SS-TPI at the served user SwMI.71
B.4 SDL representation of SS-TPI at the talking/sending user SwMI.76
B.5 SDL representation of SS-TPI at the authorized user MS.79
B.6 SDL representation of SS-TPI at the authorized user SwMI.81
B.7 SDL representation of SS-TPI at the managed user home SwMI .83
Annex C (informative): Bibliography.85
Annex D (informative): Change Requests.86
History .87

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6 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://webapp.etsi.org/IPR/home.asp).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Terrestrial
Trunked Radio (TETRA).
The present document is part 12, subpart 3 of a multi-part deliverable covering the Voice plus Data (V+D), as identified
below:
EN 300 392-1: "General network design";
EN 300 392-2: "Air Interface (AI)";
EN 300 392-3: "Interworking at the Inter-System Interface (ISI)";
ETS 300 392-4: "Gateways basic operation";
EN 300 392-5: "Peripheral Equipment Interface (PEI)";
EN 300 392-7: "Security";
EN 300 392-9: "General requirements for supplementary services";
EN 300 392-10: "Supplementary services stage 1";
EN 300 392-11: "Supplementary services stage 2";
EN 300 392-12: "Supplementary services stage 3";
EN 300 392-12-1: "Call Identification (CI)";
ETS 300 392-12-2: "Call Report (CR)";
EN 300 392-12-3: "Talking Party Identification (TPI)";
EN 300 392-12-4: "Call Forwarding (CF)";
ETS 300 392-12-5: "List Search Call (LSC)";
EN 300 392-12-6: "Call Authorized by Dispatcher (CAD)";
ETS 300 392-12-7: "Short Number Addressing (SNA)";
EN 300 392-12-8: "Area Selection (AS)";
ETS 300 392-12-9: "Access Priority (AP)";
EN 300 392-12-10: "Priority Call (PC)";
ETS 300 392-12-11: "Call Waiting (CW)";
EN 300 392-12-12: "Call Hold (HOLD)";
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7 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
ETS 300 392-12-13: "Call Completion to Busy Subscriber (CCBS)";
EN 300 392-12-14: "Late Entry (LE)";
EN 300 392-12-16: "Pre-emptive Priority Call (PPC)";
EN 300 392-12-17: "Include Call (IC)";
EN 300 392-12-18: "Barring of Outgoing Calls (BOC)";
EN 300 392-12-19: "Barring of Incoming Calls (BIC)";
ETS 300 392-12-20: "Discreet Listening (DL)";
EN 300 392-12-21: "Ambience Listening (AL)";
EN 300 392-12-22: "Dynamic Group Number Assignment (DGNA)";
ETS 300 392-12-23: "Call Completion on No Reply (CCNR)";
ETS 300 392-12-24: "Call Retention (CRT)";
ETS 300 392-13: "SDL model of the Air Interface (AI)";
ETS 300 392-14: "Protocol Implementation Conformance Statement (PICS) proforma specification";
TS 100 392-15: "TETRA frequency bands, duplex spacings and channel numbering";
TS 100 392-16: "Network Performance Metrics";
TR 100 392-17: "TETRA V+D and DMO specifications";
TS 100 392-18: "Air interface optimized applications".
NOTE: Part 10, sub-part 15 (Transfer of control), part 13 (SDL) and part 14 (PICS) of this multi-part deliverable
are in status "historical" and will not be updated according this version of the standard.

National transposition dates
Date of adoption of this EN: 21 April 2006
Date of latest announcement of this EN (doa): 31 July 2006
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 January 2007
Date of withdrawal of any conflicting National Standard (dow): 31 January 2007

ETSI
8 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
1 Scope
The present document specifies the stage 3 description of the Supplementary Service Talking Party Identification
(SS-TPI) for the Terrestrial Trunked Radio (TETRA).
The SS-TPI supplementary service enables the party/parties participating in a call to receive the identification of the
talking/sending party. The SS-TPI is activated against individual identity in individual call and against group identity in
group calls.
Man-Machine Interface (MMI) and charging principles are outside the scope of the present document.
The supplementary service stage 3 description is preceded by the stage 1 and the stage 2 description of the service,
according to the method described in ITU-T Recommendation I.130 [10]. The stage 1 description specifies the service
from the user's point of view. The stage 2 description identifies the functional capabilities and the information flows
needed to support the supplementary service as specified in its stage 1 description. The present stage 3 description
specifies the protocols at the air interface and at the various Inter-System Interfaces (ISI) to support SS-TPI.
NOTE: According to ITU-T Recommendation I.130 [10], the stage 3 description of any telecommunication
service addresses the network implementation aspects. Consequently it comprises two steps: the
specifications of all protocols at the various reference points involved in any of the service procedures
(notably the service operation) are the first step of the stage 3 description, and the specifications of the
functions of the corresponding network entities are its second step.
The latter have not been provided since they can be derived from the specification of the functional entity
actions in the stage 2 description.
The present document is applicable to Voice plus Data individual call or group call; more specifically to the following
entities:
• the MS of listening/receiving users during an individual call or a group call;
• to the originating Switching and Management Infrastructures (SwMIs) in an individual call or a group call;
• to the group home SwMI and the participating SwMI for a group call;
• to the terminating SwMI for an individual call;
• and, optionally, to the home SwMI of the group or of the MSs involved, for managing the 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 and/or edition number or version number) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
http://docbox.etsi.org/Reference.
[1] ETSI EN 300 392-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D); Part 2: Air
Interface (AI)".
[2] ETSI EN 300 392-3-1: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 1: General design".
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9 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
[3] ETSI EN 300 392-3-2: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 2: Additional Network Feature
Individual Call (ANF-ISIIC)".
[4] ETSI EN 300 392-3-3: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 3: Additional Network Feature
Group Call (ANF-ISIGC)".
[5] ETSI EN 300 392-3-5: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 3: Interworking at the Inter-System Interface (ISI); Sub-part 5: Additional Network Feature
for Mobility Management (ANF-ISIMM)".
[6] ETSI EN 300 392-9: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 9: General requirements for supplementary services".
[7] ETSI ETS 300 392-10-3: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 10: Supplementary services stage 1; Sub-part 3: Talking Party Identification (TPI)".
[8] ETSI ETS 300 392-11-3: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 11: Supplementary services stage 2; Sub-part 3: Talking Party Identification (TPI)".
[9] ETSI EN 300 392-12-6: "Terrestrial Trunked Radio (TETRA); Voice plus Data (V+D);
Part 12: Supplementary services stage 3; Sub-part 6: Call Authorized by Dispatcher (CAD)".
[10] ITU-T Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[11] ITU-T Recommendation Z.100: "Specification and Description Language (SDL)".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the terms and definitions given in EN 300 392-9 [6] and the following apply:
authorized user: identified user who is allowed to define, activate, deactivate and/or interrogate the SS-TPI parameters
served user: listening/receiving party in a call, that receives the SS-TPI information
NOTE: In a group call, all parties except the talking/sending party will be served users. In an individual call, if
SS-TPI is provided to the calling and the connected users:
- if the call is half-duplex, whenever one of the two parties becomes the talking/sending user, the
other party is the served user;
- if the call is duplex, both of them are served users.
served user SwMI: in the case of an individual call, SwMI where the served user is registered, or in the case of a group
call, any SwMI where served users are registered different from the group controlling SwMI
NOTE: The protocol specified for the start of the call in the present document for such SwMI applies
independently of whether or not the/a served user is registered in that SwMI at that time (i.e. the user
registered in that SwMI involved the call may be talking/sending at set-up time, and become served user
only later during the call).
talking/sending user: party to whom transmission permission has been granted during a group call or a half-duplex
individual call
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10 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
talking/sending user SwMI: SwMI where the talking/sending user is registered
NOTE: That definition applies without restriction in the case of an individual call. In the case of a group call, the
talking/sending user SwMI exists only when it is different from the group controlling SwMI, The protocol
specified for the start of the call in the present document for such SwMI applies independently of whether
or not the talking/sending user is registered in that SwMI at that time (i.e. the user registered in that SwMI
involved the call may be listening/receiving at set-up time, i.e. thus the/a served user, and become
talking/sending user only later during the call).
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
ANF-ISIGC Additional Network Feature - Inter-System Interface Group Call
ANF-ISIIC Additional Network Feature - Inter-System Interface Individual Call
ANF-ISIMM Additional Network Feature - Inter-System Interface Mobility Management
ANF-ISISS Additional Network Feature - Inter-System Interface Supplementary Service
CMCE Circuit Mode Control Entity
GTSI Group TETRA Subscriber Identity
ISI Inter-System Interface
ITSI Individual TETRA Subscriber Identity
LS Line Station
MS Mobile Station
PDU Protocol Data Unit
ROSE Remote Operation Service Element
SNA Short Number Address
SS Supplementary Service
SS-CAD Supplementary Service-Call Authorized by Dispatcher
SS-CLIR Supplementary Service-Calling/connected Line Identification Restriction
SS-COLP Supplementary Service-COnnected Line identification Presentation
SSI Short Subscriber Identity
SS-TPI Supplementary Service-Talking Party Identification
SwMI Switching and Management Infrastructure
TNSS-SAP TETRA Network layer Supplementary Services - Service Access Point
4 SS-TPI service description
4.1 General
SS-TPI enables a listening/receiving user in an individual or a group call to be provided with the identity of the
talking/sending party, and on an optional basis, with its mnemonic name and/or with the level of priority of its request
for transmission grant.
This clause describes SS-TPI specific services offered by the Circuit Mode Control Entity (CMCE) at the
Supplementary Services service access point (TNSS-SAP) of the TETRA voice plus data layer 3 service boundary in a
TETRA Mobile Station (MS) or TETRA Line Station (LS). The SS-TPI service access point is used in conformance
testing as a normative boundary in MSs and LSs.
NOTE: As the present document only deals with the SS-TPI all the service primitives has been shown without a
TNSS-TPI-prefix e.g. the TNSS-TPI-ACTIVATE request is shorten into an ACTIVATE request.
4.2 SS-TPI services offered over the TNSSSAP
NOTE 1: As man-machine interface or user applications are outside the scope of the present document service
primitives are used to define information exchange to and from the standardized part of the MS. Those
primitives may be only indirectly accessible.
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11 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
The SS-TPI service primitives at the served user MS TNSS-SAP shall be:
- INFORM indication.
The SS-TPI service primitives at the authorized user MS TNSS-SAP shall be:
- ACTIVATE request;
- ACTIVATE indication;
- DEFINE request;
- DEFINE indication;
- INFORM indication;
- INTERROGATE request;
- INTERROGATE indication;
- INTERROGATE BY NAME request;
- INTERROGATE BY NAME indication.
Any user to whom SS-TPI is provided should have the possibility to use the INTERROGATE primitives mentioned
above, limited to its own ITSI and to GTSIs of groups he is member of.
NOTE 2: Formally, when such user is using the INTERROGATE primitives to know whether SS-TPI has been
activated for him, and if yes with which optional subscription parameters, he is acting as a served user.
While when he is using those primitives to know his mnemonic name, he is acting as a talking/sending
user (since that name is going to be delivered to the served user(s)). However no difference has been
made between the two cases, since during a call any user can be in turn a served user and talking/sending
user.
4.2.1 ACTIVATE indication
The ACTIVATE indication primitive shall be sent to the user application by the MS CMCE over TNSS-SAP to inform
it of the result of a previous ACTIVATE request.
If the previous request has been addressed to a SwMI for more than one identity, that SwMI may send its corresponding
response either in one single request which applies to all those identities or in multiple requests.
The ACTIVATE indication primitive shall contain the SS-TPI parameters listed in table 1.
Table 1: Parameters for the primitive ACTIVATE indication
Parameter Indication
Activation result M (see note 1)
TETRA identity/identities M (see note 2)
Activation state C (see notes 1 and 3)
NOTE 1: There shall be only one activation result and one activation state per indication primitive.
NOTE 2: It is optional to support more than one identity.
NOTE 3: Conditional on the activation result.

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12 ETSI EN 300 392-12-3 V1.3.1 (2006-04)
4.2.2 ACTIVATE request
The ACTIVATE request primitive shall be sent to the MS CMCE by the user application by over TNSS-SAP to activate
SS-TPI.
The activation process shall support one TETRA identity in a request. Optionally it may support a list and/or range of
identities. Such identity/identities may be those of either individual users or of groups.
The ACTIVATE request primitive shall contain the SS-TPI parameters listed in table 2.
Table 2: Parameters for the primitive ACTIVATE request
Parameter Request
Access priority O
TETRA identity/identities M (see note 1)
Activation request M (see note 2)
NOTE 1: It is optional to support more than one identity.
NOTE 2: There shall be only one activation request per request primitive.

4.2.3 DEFINE indication
The DEFINE indication primitive shall be sent to the user application by the MS CMCE over TNSS-SAP to inform it of
the result of a previous DEFINE request.
If the previous request has been addressed to a SwMI for more than one identity, that SwMI may send its corresponding
response either in one single request which applies to all those identities or in multiple requests.
The DEFINE indication primitive shall contain the SS-TPI parameters listed in table 3.
Table 3: Parameters for the primitive DEFINE indication
Parameter Indication
Definition result M (see note 1)
TETRA identity/identities M (see note 2)
Activation state C (see notes 1 and 3)
NOTE 1: There shall be only one definition result and one activation state per indication primitive.
NOTE 2: It is optional to support more than one identity.
NOTE 3: Conditional on the definition result.

4.2.4 DEFINE request
The DEFINE request primitive shall be sent to the MS CMCE by the user application by over TNSS-SAP to give a
mnemonic name to a user.
The definition process shall support one TETRA identity in a request. Optionally it may support a list and/or range of
identities. Such identity/identities may only be those of individual users (since the groups have no mnemonic names).
The DEFINE request primitive shall contain the SS-TPI parameters listed in table 4.
Table 4: Parameters for
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