SIST ETS 300 542 E1:2003
(Main)European digital cellular telecommunications system (Phase 2); Line identification supplementary services; Stage 2 (GSM 03.81)
European digital cellular telecommunications system (Phase 2); Line identification supplementary services; Stage 2 (GSM 03.81)
....
Evropski digitalni celični telekomunikacijski sistem (faza 2) – Dopolnilna storitev: identifikacija priključka – Stopnja 2 (GSM 03.81)
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST ETS 300 542 E1:2003
01-december-2003
(YURSVNLGLJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHP ID]D ±'RSROQLOQDVWRULWHY
LGHQWLILNDFLMDSULNOMXþND±6WRSQMD *60
European digital cellular telecommunications system (Phase 2); Line identification
supplementary services; Stage 2 (GSM 03.81)
Ta slovenski standard je istoveten z: ETS 300 542 Edition 1
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST ETS 300 542 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST ETS 300 542 E1:2003
EUROPEAN ETS 300 542
TELECOMMUNICATION March 1995
STANDARD
Source: ETSI TC-SMG Reference: DE/SMG-030381P
ICS: 33.060.30
European digital cellular communications system, Global System for Mobile communications
Key words:
(GSM)
European digital cellular communications system (Phase 2);
Line identification supplementary services - Stage 2
(GSM 03.81)
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
F-06921 Sophia Antipolis CEDEX - FRANCE
Postal address:
650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
Office address:
c=fr, a=atlas, p=etsi, s=secretariat - secretariat@etsi.fr
X.400: Internet:
Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16
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.
© European Telecommunications Standards Institute 1995. All rights reserved.
New presentation - see History box
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Whilst every care has been taken in the preparation and publication of this document, errors in content,
typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to
"ETSI Editing and Committee Support Dept." at the address shown on the title page.
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Contents
Foreword.5
0 General .7
0.1 Scope .7
0.2 Normative references .7
0.3 Definitions and abbreviations.7
0.3.1 Definition of line identity .7
0.3.2 Definition of presentation and screening indicators .7
1 Calling line identification presentation (CLIP).8
1.1 Handling of calling line identification presentation.8
1.1.1 Interrogation .8
1.2 Functions and information flows.8
1.3 Information stored in the HLR. 12
1.4 State transition model. 12
1.5 Transfer of information from HLR to VLR . 12
1.6 Information stored in the VLR. 12
1.7 Handover. 12
2 Calling line identification restriction (CLIR). 13
2.1 Handling of calling line identification restriction . 13
2.1.1 General . 13
2.1.2 Permanent mode. 13
2.1.3 Controlling presentation of the CLI when CLIR is provisioned in temporary
mode. 13
2.1.4 Interrogation . 14
2.2 Functions and information flows. 14
2.3 Information stored in the HLR. 19
2.4 State transition model. 19
2.5 Transfer of information from HLR to VLR . 19
2.6 Information stored in the VLR. 19
2.7 Handover. 20
2.8 Interworking. 20
3 Connected line identification presentation (COLP). 21
3.1 Handling of connected line identification presentation. 21
3.1.1 Interrogation . 21
3.1.2 Interactions with call forwarding supplementary services . 21
3.2 Functions and information flows. 21
3.3 Information stored in the HLR. 26
3.4 State transition model. 26
3.5 Transfer of information from HLR to VLR . 26
3.6 Information stored in the VLR. 26
3.7 Handover. 26
4 Connected line identification restriction (COLR) . 27
4.1 Handling of connected line identification restriction . 27
4.1.1 General . 27
4.1.2 Interrogation . 27
4.2 Functions and information flows. 27
4.3 Information stored in the HLR. 31
4.4 State transition model. 31
4.5 Transfer of information from HLR to VLR . 31
4.6 Information stored in the VLR. 31
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4.7 Handover.31
4.8 Interworking.32
History .33
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ETS 300 542: March 1995 (GSM 03.81 version 4.5.1)
Foreword
This European Telecommunication Standard (ETS) has been produced by the Special Mobile Group
(SMG) Technical Committee (TC) of the European Telecommunications Standards Institute (ETSI).
This ETS defines the stage 2 of the line identification supplementary services for the European digital
cellular telecommunications system (Phase 2).
This ETS corresponds to GSM Technical Specification (GSM-TS) GSM 03.81 version 4.5.1.
The specification from which this ETS has been derived was originally based on CEPT documentation,
hence the presentation of this ETS may not be entirely in accordance with the ETSI/PNE rules.
Reference is made within this ETS to GSM-TSs (NOTE).
NOTE: TC-SMG has produced documents which give the technical specifications for the
implementation of the European digital cellular telecommunications system. Historically,
these documents have been identified as GSM Technical Specifications (GSM-TSs).
These TSs may have subsequently become I-ETSs (Phase 1), or ETSs (Phase 2),
whilst others may become ETSI Technical Reports (ETRs). GSM-TSs are, for editorial
reasons, still referred to in current GSM ETSs.
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Blank page
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0 General
0.1 Scope
This specification gives the stage 2 description of the call identification supplementary services
The group line identification supplementary services are divided into the following four supplementary
services:
- Calling line identification presentation CLIP (section 1);
- Calling line identification restriction CLIR (section 2);
- Connected line identification presentation COLP (section 3);
- Connected line identification restriction COLR (section 4).
0.2 Normative references
This ETS incorporates by dated and undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
to this ETS only when incorporated in it by amendment or revision. For undated references, the latest
edition of the publication referred to applies.
[1] GSM 01.04 (ETR 100): "European digital cellular telecommunications system
(Phase 2); Abbreviations and acronyms".
[2] GSM 03.11 (ETS 300 529): "European digital cellular telecommunications
system (Phase 2); Technical realization of supplementary services".
0.3 Definitions and abbreviations
Abbreviations used in this specification are listed in GSM 01.04.
0.3.1 Definition of line identity
The line identity is made up of the following information units:
- The subscriber's international ISDN/MSISDN number;
- Optionally subaddress information.
For mobile originated calls, the ISDN/MSISDN shall always be provided within the network. The
subaddress shall only be included if it is provided by the user (or user equipment).
The calling line identity is the line identity of the calling party. The connected line identity is the line identity
of the connected party.
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0.3.2 Definition of presentation and screening indicators
In addition to, or instead of, the line identity, the network may send a presentation indicator (PI) and/or a
screening indicator (SI) to the MS as follows:
- Presentation Indicator:
a) Presentation allowed;
b) Presentation restricted;
c) Number not available.
- Screening indicator:
a) User provided, verified and passed;
b) User provided, not screened;
c) network provided.
Note that although the MSISDN is always network provided within a PLMN, other values of screening
indicator may be received from other networks. The screening indicator only applies to the ISDN/MSISDN.
1 Calling line identification presentation (CLIP)
1.1 Handling of calling line identification presentation
1.1.1 Interrogation
Status check
The mobile subscriber can request the status of the supplementary service and be informed if the service
is provided to him/her. This procedure is illustrated in figure 1.1.
MS MSC VLR HLR
�˜˜˜¿ �˜˜˜¿ �˜˜˜¿ �˜˜˜¿
‡ ‡Interrogate CLIP‡ ‡ ‡ ‡ ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡Interrogate CLIP‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ Acknowledge ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡<˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡
‡ ‡Release Complete‡ ‡ ‡ ‡ ‡ ‡
‡ ‡<˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
Figure 1.1: Interrogation of calling line identification presentation
1.2 Functions and information flows
The following Mobile Additional Functions have been identified for the PLMN:
MAF001
Determination of the calling line identification presentation subscription
The ability of a PLMN component to determine whether the supplementary service is provisioned for
the mobile subscriber. See figure 1.2.
Location: VLR.
MAF002
Determination of the calling party number for offering to the called party
The ability of a PLMN component to determine and to forward the calling line identity and related
indications to the called party. See figure 1.3.
Location: destination MSC.
The information flow is shown in figure 1.4.
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Process CLIP_MAF001 381_12(1)
Figure 1.2 idle
initiate
handling
of CLIP
yes
CLIP
provisioned
no
set provision set provision
indication = indication =
not provisioned provisioned
called
no
subscriber
in HPLMN
country
yes
no
override
category
yes
set override set override
category = yes category = no
continue
call
handling
idle
CLIP: Calling Line Identification Presentation.
Figure 1.2: MAF001 Determination of calling line identification presentation subscription
(VLR)
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Process CLIP_MAF002 381_13(1)
Figure 1.3 idle
initiate
handling
of CLIP
no
CLIP
provisioned
yes
no
CLI
available
yes
yes
presentation
restricted
no
yes
override
category
no
set PI =
pass CLI number not
available
continue
call
handling
CLIP: Calling Line Identification Presentation.
idle
CLI: Calling Line Identity.
PI: Presentation Indicator.
Figure 1.3: MAF002 Determination of the information for offering to the called party
(destination MSC)
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MS/TE MSCa/LE VLRb MSCb MSb
�˜˜˜¿ �˜˜˜¿ �˜˜˜¿ �˜˜˜˜˜˜¿ �˜˜¿
‡ ‡ set-up ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ˆ˜˜˜˜˜˜˜>‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ** ‡ ‡ set-up ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜¯˜˜˜¯˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡
‡ ‡ ‡ ‡(SI+PI+LI)‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡info req ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡MAF‡<˜˜˜˜˜˜˜˜· ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡001‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡info ack ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜>‡MAF002‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR1:N ‡ set-up ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR1:Y ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR2:c ‡ set-up ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ (PI) ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR1:Y ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR2:b ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR3:N ‡ set-up ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ (PI) ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR1:Y ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR2:b ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR3:Y ‡ set-up ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡(SI+PI+LI)‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR1:Y ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡OR2:a ‡ set-up ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡(SI+PI+LI)‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
NOTE: OR1: CLIP provisioned Y: yes N: no
OR2: Presentation Indicator Value a: allowed
b: restricted
c: not available
OR3: Override category
**: A subaddress may be received from the originating MS or the TE
info: information SI: screening indicator
req: request PI: presentation indicator
ack: acknowledge LI: line identity
Figure 1.4: Information flow for calling line identification presentation:
mobile station or fixed terminal to mobile station
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1.3 Information stored in the HLR
CLIP may have the following logical states (refer to TS GSM 03.11 for an explanation of the notation):
Provisioning State Registration State Activation State HLR Induction State
(Not Provisioned, Not Applicable, Not Active, Not Induced)
(Provisioned, Not Applicable, Active and Operative, Not Induced)
The HLR shall store the logical state of CLIP (which shall be one of the valid states listed above) on a per
subscriber basis.
The HLR shall also store the subscription option "override category" on a per subscriber basis.
This parameter takes one of the following values:
- yes;
- no.
1.4 State transition model
The following figure shows the successful cases of transition between the applicable logical states of
CLIP. The state changes are caused by actions of the service provider.
Note that error cases are not shown in the diagram as they normally do not cause a state change.
Additionally, some successful requests may not cause a state change. Hence they are not shown in the
diagram.
Figure 1.5: State transition model for CLIP
1.5 Transfer of information from HLR to VLR
If the provisioning state for CLIP is "Provisioned" then, when the subscriber registers on a VLR, the HLR
shall send that VLR information about the logical state of CLIP and the override category.
If the logical state of CLIP or the override category is changed while a subscriber is registered on a VLR
then the HLR shall inform the VLR of the new logical state of CLIP and (if the provisioning state is
"Provisioned") the new override category.
1.6 Information stored in the VLR
For CLIP, the VLR shall store the service state information and override category received from the HLR.
1.7 Handover
Handover will have no impact on the control procedures and the operation of the service.
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2 Calling line identification restriction (CLIR)
2.1 Handling of calling line identification restriction
2.1.1 General
If the originating party has calling line identification restriction provisioned and it is impossible to indicate to
the terminating network (due to interworking) that the number should not be presented to the terminating
party, the calling line identity shall not be delivered to the terminating network.
2.1.2 Permanent mode
If the subscriber has calling line identification restriction provisioned in permanent mode, the originating
party's CLI shall not be presented to the terminating party (i.e. the terminating MS or TE), unless the
terminating party has calling line identification presentation provisioned with the subscription option
"override category" set (see section 1).
2.1.3 Controlling presentation of the CLI when CLIR is provisioned in temporary mode
A subscriber can have calling line identification restriction provisioned in temporary mode with one of two
default values: presentation restricted or presentation allowed.
If the default value is set to presentation restricted, the default handling is not to present the originating
party's CLI to the terminating party (i.e. the terminating MS or TE).
However, it is possible for the originating subscriber to present his CLI to the terminating party. The
originating subscriber must indicate during call set-up that the CLI must be presented to the terminating
party. This procedure is illustrated in figure 2.1.
MS MSC
�˜˜˜¿ �˜˜˜¿
‡ ‡ ‡ ‡
‡ ‡ Present CLI ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡
‡ ‡ ‡ ‡
‡ ‡ ‡ ‡
Figure 2.1: MS indicating presentation of CLI when CLIR is provisioned in temporary mode with
default value "presentation restricted"
If the default value is set to presentation allowed, the default handling is to present the originating party's
CLI to the terminating party (i.e. the terminating MS or TE).
However, it is possible for the originating subscriber to restrict presentation of his CLI to the terminating
party. The originating subscriber must indicate during call set-up that CLI presentation must be restricted.
This procedure is illustrated in figure 2.2.
MS MSC
�˜˜˜¿ �˜˜˜¿
‡ ‡ ‡ ‡
‡ ‡ Restrict CLI ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡
‡ ‡ ‡ ‡
‡ ‡ ‡ ‡
Figure 2.2:: MS invoking CLIR, when CLIR is provisioned in temporary mode with default value
"presentation allowed"
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2.1.4 Interrogation
Data request
The mobile subscriber can request the data of the supplementary service.
In response the following information shall be given:
- whether the service is provided or not;
- if provided which mode is subscribed;
- if subscribed to the temporary mode: which default value.
This procedure is illustrated in figure 2.3.
MS MSC VLR HLR
�˜˜˜¿ �˜˜˜¿ �˜˜˜¿ �˜˜˜¿
‡ ‡Interrogate CLIR‡ ‡ ‡ ‡ ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡Interrogate CLIR‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ Acknowledge ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡<˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡
‡ ‡Release Complete‡ ‡ ‡ ‡ ‡ ‡
‡ ‡<˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
Figure 2.3: Interrogation of calling line identification restriction
2.2 Functions and information flows
The following Mobile Additional Functions have been identified for the PLMN:
MAF003
Determination of the calling line identification restriction subscription
The ability of a PLMN component to determine whether the supplementary service is provisioned for
the mobile subscriber. See figure 2.4.
Location: VLR.
MAF004
Determination of the calling party number for offering to the called party
The ability of a PLMN component to determine and to forward the calling line identity and related
indications to the called party. See figure 2.5.
Location: originating MSC.
The information flows are shown in figures 2.6 to 2.9.
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Process CLIR_MAF003 381_24(1)
Figure 2.4
idle
initiate
handling
of CLIR
no
CLIR
provisioned
yes
set provision set provision
indication = indication =
provisioned not provisioned
subscription
yes
option =
permanent
no
temporary
no
mode default =
pres. restricted
yes
mode indication = mode indication = set mode
temporary temporary indication =
(pres. restricted) (pres. allowed) permanent
continue
call
handling
CLIR: Calling Line Identification Restriction
idle
Figure 2.4: MAF003 Determination of calling line identification restriction subscription
(VLR)
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Process CLIR_MAF004 381_25(1)
Figure 2.5 idle
CLIR: Calling Line Identification Restriction
CLI: Calling Line Identity
PI: Presentation Indicator
initiate
handling
of CLIR
no
CLIR
provisioned
yes
restrict
yes no
CLI permanent
note 2
yes
no
present
yes
temporary
CLI no
mode default =
note 1
pres. restricted
no
yes
clear error
call notification
present
no
CLI
note 1
yes
no restrict
CLI
note 2
yes
set PI = set PI = set PI = set PI =
presentation presentation presentation presentation
allowed restricted allowed restricted
note 1: present CLI is input received
continue
from the mobile station
call
note 2: restrict CLI is input received
handling
from the mobile station
idle
Figure 2.5: MAF004 Determination of the presentation indicator
(originating MSC)
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MS MSC VLR MSCb/LE
�˜˜˜¿ �˜˜˜¿ �˜˜˜¿ �˜˜˜¿
‡ ‡ set-up ‡ ‡ ‡ ‡ ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ** ‡ ‡ info request ‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡MAF‡ ‡ ‡
‡ ‡ ‡ ‡ ‡003‡ ‡ ‡
‡ ‡ ‡ ‡ info acknowledge ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡<˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜· ‡ ‡ ‡
‡ ‡ ‡MAF‡ ‡ ‡ ‡ ‡
‡ ‡ ‡004‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ set-up ‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜¯˜˜˜¯˜˜˜˜˜>‡ ‡
‡ ‡ ‡ ‡ (SI,PI=restricted,LI)‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡ ‡ ‡ ‡
NOTE: **: A subaddress may be received from the MS
SI: screening indicator
PI: presentation indicator
LI: line identity
Figure 2.6: Information flow for calling line identification restriction in permanent or temporary
mode with the default value "presentation restricted"
MS MSC VLR MSCb/LE
�˜˜˜¿ �˜˜˜¿ �˜˜˜¿ �˜˜˜¿
‡ ‡ set-up ‡ ‡ ‡ ‡ ‡ ‡
‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ (present CLI) ‡ ‡ ‡ ‡ ‡ ‡
‡ ‡ ** ‡ ‡ info request ‡ ‡ ‡ ‡
‡ ‡ ‡ ˆ˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜˜>‡ ‡ ‡ ‡
‡ ‡ ‡ ‡ ‡MAF‡ ‡ ‡
‡ ‡ ‡ ‡ ‡003‡ ‡ ‡
‡ ‡ ‡ ‡ info acknowledge ‡ ‡ ‡ ‡
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