ETSI EN 300 925 V7.0.2 (2000-08)

Digital cellular telecommunications system (Phase 2+) (GSM); Voice Group Call Service (VGCS) - Stage 1 (GSM 02.68 version 7.0.2 Release 1998)

REN/SMG-010268Q7

Digitalni celični telekomunikacijski sistem (faza 2+) – Storitev govornega skupinskega klica (VGCS) – Stopnja 1 (GSM 02.68, različica 7.0.2, izdaja 1998)

General Information

• Status: Published
• Publication Date: 23-Aug-2000
• Technical Committee: SMG 1 - Services & Facilities
• Current Stage: 12 - Completion
• Due Date: 18-Aug-2000
• Completion Date: 24-Aug-2000
• Mandate: UIC
• Ref Project: SIST EN 300 925 V7.0.2:2003 - Digital cellular telecommunications system (Phase 2+) (GSM); Voice Group Call Service (VGCS) - Stage 1 (GSM 02.68 version 7.0.2 Release 1998)

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 300 925 V7.0.2:2003
01-december-2003
'LJLWDOQLFHOLþQLWHOHNRPXQLNDFLMVNLVLVWHPID]D±6WRULWHYJRYRUQHJD
VNXSLQVNHJDNOLFD9*&6±6WRSQMD*60UD]OLþLFDL]GDMD
Digital cellular telecommunications system (Phase 2+) (GSM); Voice Group Call Service
(VGCS) - Stage 1 (GSM 02.68 version 7.0.2 Release 1998)
Ta slovenski standard je istoveten z: EN 300 925 Version 7.0.2
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
SIST EN 300 925 V7.0.2:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 300 925 V7.0.2:2003

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SIST EN 300 925 V7.0.2:2003
ETSI EN 300 925 V7.0.2 (2000-08)
European Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
Voice Group Call Service (VGCS) - Stage 1
(GSM 02.68 version 7.0.2 Release 1998)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS

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SIST EN 300 925 V7.0.2:2003
2 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
Reference
REN/SMG-010268Q7
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
ETSI
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© European Telecommunications Standards Institute 2000.
All rights reserved.
ETSI

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SIST EN 300 925 V7.0.2:2003
3 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
Contents
Intellectual Property Rights.4
Foreword.4
1 Scope .5
2 References .5
3 Definitions and abbreviations.6
3.1 Definitions.6
3.2 Abbreviations .6
4 Description .6
5 Normal operation with successful outcome .9
5.1 Provision .9
5.2 Withdrawal .10
5.3 Network related service configuration .10
5.4 Normal operation for voice group call establishment.10
5.5 Charging requirements .10
6 Exceptional procedures or unsuccessful outcome.10
7 Interaction with other GSM services.11
7.1 Calling Line Identification Presentation (CLIP).11
7.2 Calling Line Identification Restriction (CLIR) .11
7.3 Connected Line Identification Presentation (COLP).11
7.4 Connected Line Identification Restriction (COLR) .11
7.5 Call Forwarding Unconditional (CFU).11
7.6 Call Forwarding on mobile subscriber Busy (CFB) .11
7.7 Call Forwarding on No Reply (CFNRy) .11
7.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc) .11
7.9 Call Waiting (CW) .12
7.10 Call Hold (HOLD).12
7.11 Multi-party Service (MPTY).12
7.12 Closed User Group (CUG) .12
7.13 Advice of Charge (AoC) .12
7.14 Barring of All Outgoing Calls (BAOC) .12
7.15 Barring of Outgoing International Calls (BOIC).12
7.16 Barring of Outgoing International Calls except those to the Home PLMN country (BOIC-exHC).12
7.17 Barring of All Incoming Calls (BAIC).12
7.18 Barring of Incoming Calls when Roaming outside the home PLMN country (BIC-Roam).13
7.19 Explicit Call Transfer (ECT).13
7.20 Enhanced Multi-Level Precedence and Pre-emption service (eMLPP).13
7.21 Short Message Service (SMS).13
7.22 Operator Determined Barring (ODB).13
8 Interworking considerations.13
Annex A (informative): Status of Technical Specification GSM 02.68.14
History .15
ETSI

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SIST EN 300 925 V7.0.2:2003
4 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
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://www.etsi.org/ipr).
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 Special Mobile
Group (SMG).
The present document specifies the stage one description of the Voice Group Call Service (VGCS) within the digital
cellular telecommunications system.
The contents of the present document may be subject to continuing work within SMG and may change following formal
SMG approval. Should SMG modify the contents of the present document it will then be re-submitted for formal
approval procedures by ETSI with an identifying change of release date and an increase in version number as follows:
Version 7.x.y
where:
7 GSM Phase 2+ Release 1998
x the second digit is incremented for changes of substance, i.e. technical enhancements, corrections, updates,
etc.;
y the third digit is incremented when editorial only changes have been incorporated in the specification.
National transposition dates
Date of adoption of this EN: 10 December 1999
Date of latest announcement of this EN (doa): 31 March 2000
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 September 2000
Date of withdrawal of any conflicting National Standard (dow): 30 September 2000
ETSI

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SIST EN 300 925 V7.0.2:2003
5 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
1 Scope
The present document specifies the stage one description of the Voice Group Call Service (VGCS) which allows speech
conversation of a predefined group of service subscribers in half duplex mode on the radio link taking into account
multiple mobile service subscribers involved in the VGCS call per cell.
The VGCS is applicable to all mobile stations in a certain network and area which have the technical capability and the
corresponding subscription, respectively, to participate in a VGCS call.
NOTE: It is not considered as requirement that normal GSM phase 2 mobile stations will be able to be used for
this service.
The service is described from the service subscriber's and user's point of view; in particular:
- the procedure for normal operation with successful outcome;
- the action to be taken in exceptional circumstances;
- the interaction with other GSM services and features.
The present document does not deal with the Man-Machine Interface (MMI) requirements, but makes reference to the
appropriate Global System for Mobile Communications (GSM) specifications.
The present document defines a teleservice of the digital cellular telecommunications system GSM. Any interaction
with other services and/or networks not dealt with in clauses 7 or 8 are outside the scope of the present document.
2 References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, the latest version applies.
• A non-specific reference to an ETS shall also be taken to refer to later versions published as an EN with the same
number.
• For this Release 1998 document, references to GSM documents are for Release 1998 versions (version 7.x.y).
[1] GSM 01.04: "Digital cellular telecommunications system (Phase 2+); Abbreviations and
acronyms".
[2] GSM 02.67: "Digital cellular telecommunications system (Phase 2+); enhanced Multi-Level
Precedence and Pre-emption service (eMLPP) - Stage 1".
ETSI

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SIST EN 300 925 V7.0.2:2003
6 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
network operator: Entity which provides the network operating elements and resources for the execution of the
VGCS.
service provider: Entity which offers the VGCS for subscription. The network operator may be the service provider.
voice group call: An instance of the VGCS initiated by a subscriber. This term is used synonymously with the term
"VGCS call".
service subscriber: Mobile subscriber which subscribes to the VGCS.
group identification (group ID): A numerical classification. The maximum number of group IDs which can be defined
in one PLMN depends on the maximum number of group call areas defined in this PLMN. The maximum number of
8
group IDs and group call areas combined is 10 , Service subscriber shall be provided with one or up to 50 group IDs.
dispatcher: Particular fixed line or mobile users are identified within the network as dispatchers. Dispatchers shall
receive all voice group calls to a certain group ID in a group call area (this shall be done automatically by the network).
In addition they can initiate voice group calls to a group ID in a group call area.
Dispatchers shall be connected to a voice group call by means of standard links via radio or via an ISDN. They shall be
called by their ISDN or MSISDN number, respectively. When dispatchers initiate voice group calls, they shall call a
particular MSISDN number which is related to a group ID and group call area. Dispatchers using the GSM network can
be located outside of this group call area.
The identities of the dispatchers are exclusively predefined in the network by the service provider. There will be none or
up to five dispatchers involved in a particular voice group call.
destination subscriber: Service subscriber or dispatcher to which the VGCS call is directed.
calling subscriber: Service subscriber or dispatcher which originates the VGCS call.
group call area: Predefined area composed of one or a cluster of cells to which a particular VGCS call is distributed.
The maximum number of group call area IDs which can be defined in one PLMN depends on the maximum number of
8
group IDs defined in this PLMN. The maximum number of group IDs and group call areas combined is 10 ,The
composition of a group call area is predefined in the network by the service provider. Changing of cell allocation in the
network due to operational reasons will need an adaptation of the group call area definition. The group call area may
include more then one MSC area and cells of more than one PLMN.
group call member: Any service subscriber or dispatcher participating in an on going voice group call.
3.2 Abbreviations
Abbreviations used in the present document are listed in GSM 01.04.
4 Description
The VGCS is defined in the following. Figure 1 gives an explanation of the logical concept of the VGCS.
a) The VGCS enables a calling subscriber to establish a voice group call to destination subscribers belonging to a
predefined group call area and group ID.
NOTE 1: The service is provided by use of half duplex transmission mode.
Applications for voice group call services typically involve multiple group members in a small group call area,
for which the VGCS should provide spectrum efficient solutions.
ETSI

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SIST EN 300 925 V7.0.2:2003
7 ETSI EN 300 925 V7.0.2 (2000-08)
(GSM 02.68 version 7.0.2 Release 1998)
b) The calling subscriber as well as the destination subscribers may be any service subscriber which has subscribed
to the related group ID or any dispatcher who is entitled to it by his identity which shall be registered in the
network.
c) Destination subscribers are all service subscribers or a group of service subscribers identified by the called group
ID which have their present location in the group call area, and pre-registered dispatchers. Destination service
subscribers shall be notified with the group ID, not by paging the subscriber individually. Dispatchers shall be
called individually with their identity.
Service subscribers may become late destination subscribers when entering the group call area within 500 ms
after reception of the first notification message related to the VGCS call. Service subscribers which leave the
corresponding group call area during an on going VGCS call of which they are member cease
...