SIST EN 301 702 V7.1.2:2003

• Abstract:

  Release 1998 version

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.070.50 - Global System for Mobile Communication (GSM)
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 301 702 V7.1.2 (1999-12) - Digital cellular telecommunications system (Phase 2+) (GSM); User-to-User Signalling (UUS); Service description, Stage 1 (GSM 02.87 version 7.1.2 Release 98)

Overview

SIST EN 301 702 V7.1.2:2003 defines the User-to-User Signalling (UUS) supplementary service within the digital cellular telecommunications system (GSM, Phase 2+, Release 1998). This standard specifies how limited user-to-user information (UUI) can be transmitted between a mobile subscriber and another GSM PLMN or ISDN subscriber using the signalling channel, associated with a call. The document, harmonized with ETSI EN 301 702, establishes the service description, operational principles, and key interactions with existing supplementary services in GSM networks.

Key Topics

• User-to-User Information (UUI): UUI is subscriber-generated data transmitted transparently via the network during call association. The network does not interpret or modify this information.
• Service Variants: UUS comprises three key services:
  • Service 1: UUI can be transferred during call origination and termination, embedded within call control messages. Activation can be implicit (by including UUI at call setup) or explicit.
  • Service 2: UUI is sent or received after the remote party is alerted but before call establishment. Activation is always explicit.
  • Service 3: UUI is exchanged only after the call connection is established. Activation is explicit and subject to remote party acceptance.
• Service Operation:
  • Activation can be implicit (Service 1) or explicit (all services).
  • Deactivation is automatic upon call termination or when the service is withdrawn.
  • Only subscribers with UUS provision can initiate UUS service; the remote party does not require a subscription to receive UUI.
• Charging: Network operators can charge for UUI message exchanges regardless of call destination or other call charges.
• Service Handling and Limitations:
  • UUI message length is generally up to 128 octets per message, but some interworking scenarios may restrict this to 32 octets.
  • If UUS activation fails, the network provides feedback except for service 1 implicit activation.
  • The standard defines specific behavior for UUS in cases of network congestion, busy status, and forwarding scenarios.

Applications

UUS is a valuable supplementary service in GSM networks, enabling the exchange of brief information between users in conjunction with voice or data calls. Its practical applications include:

• Service Coordination: Exchanging reference numbers, authentication codes, or brief messages before or during calls.
• Interworking with ISDN: UUS bridges GSM and ISDN networks by supporting UUI transfer, enabling richer service interaction between mobile and fixed subscribers.
• Business Communication: Facilitating additional context for calls-for example, sending transaction IDs in customer service scenarios.
• Multi-party Call Management: During conference calls or multi-party services, UUI can be directed to specific participants, enhancing clarity and coordination during multi-user interactions.
• Supplementary Service Management: UUS interacts smoothly with other GSM services such as call forwarding, call waiting, explicit call transfer, and call hold, preserving UUI transfer as calls are managed within the network.

Related Standards

For a comprehensive implementation and understanding of User-to-User Signalling within GSM networks, consider the following related standards:

• GSM 01.04: Abbreviations and acronyms used in GSM specifications.
• GSM 02.04: General principles on supplementary services in GSM Phase 2+.
• GSM 02.30: Man-Machine Interface (MMI) for the Mobile Station; outlines how users interact with and control supplementary services.
• EN 301 702: The equivalent European standard maintained by ETSI for UUS, providing harmonized requirements across EU member states.

These documents, together with SIST EN 301 702 V7.1.2:2003, ensure interoperability, consistent service delivery, and adherence to best practices in international mobile communications standards.

Keywords: GSM, User-to-User Signalling, UUS, UUI, digital cellular telecommunications, supplementary services, PLMN, ISDN, service description, signalling channel, standardization.

SLOVENSKI STANDARD
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Digital cellular telecommunications system (Phase 2+) (GSM); User-to-User Signalling
(UUS); Service description, Stage 1 (GSM 02.87 version 7.1.2 Release 1998)
Ta slovenski standard je istoveten z: EN 301 702 Version 7.1.2
ICS:
33.070.50 Globalni sistem za mobilno Global System for Mobile
telekomunikacijo (GSM) Communication (GSM)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)
Digital cellular telecommunications system (Phase 2+);
User-to-User Signalling (UUS);
Service description, Stage 1
(GSM 02.87 Version 7.1.2 Release 1998)
R
GLOBAL SYSTEM FOR
MOBILE COMMUNICATIONS
(GSM 02.87 Version 7.1.2 Release 1998) 2 ETSI EN 301 702 V7.1.2 (1999-12)
Reference
DEN/SMG-010287Q7
Keywords
Digital cellular telecommunications system,
Global System for Mobile communications (GSM)
ETSI
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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 1999.
All rights reserved.
ETSI
(GSM 02.87 Version 7.1.2 Release 1998) 3 ETSI EN 301 702 V7.1.2 (1999-12)
Contents
Intellectual Property Rights.5
Foreword.5
1 Scope .6
2 References.6
3 Definitions and Abbreviations .6
3.1 Definitions.6
3.2 Abbreviations .6
4 Description .7
4.1 Description .7
4.2 Applicability to telecommunication services.7
5 Normal procedures with successful outcome.7
5.1 Provision.7
5.2 Withdrawal .7
5.3 Registration and Erasure.8
5.4 Activation and Deactivation .8
5.5 Invocation.8
5.6 Interrogation.8
5.7 Handling of UUS services .8
5.7.1 Activation .8
5.7.1.1 Service 1.8
5.7.1.2 Service 2.9
5.7.1.3 Service 3.9
5.7.1.4 "UUS required" request.9
5.7.2 Invocation and operation .9
5.7.2.1 Service 1.10
5.7.2.2 Service 2.10
5.7.2.3 Service 3.10
5.7.2.4 Charging requirements .10
6 Exceptional procedures or unsuccessful outcome .10
6.1 Provision and Withdrawal .10
6.2 Registration and Erasure.10
6.3 Handling of UUS services .10
6.3.1 Activation .10
6.3.2 Invocation .11
7 Interactions with other supplementary services .11
7.1 Call forwarding unconditional.11
7.2 Call forwarding on mobile subscriber busy .11
7.3 Call forwarding on no reply.11
7.4 Call forwarding on mobile subscriber not reachable .12
7.5 Call waiting .12
7.6 Call hold .12
7.7 Completion of calls to busy subscribers .12
7.8 Explicit call transfer .12
7.9 Multi party service.12
7.10 Advice of charge.13
7.11 Barring of outgoing calls .13
7.12 Barring of outgoing international calls .13
7.13 Barring of outgoing international calls except those directed to the home PLMN country.13
7.14 Barring of incoming calls .13
7.15 Barring of incoming calls when roaming outside the home PLMN country.13
7.16 Call Deflection .13
ETSI
(GSM 02.87 Version 7.1.2 Release 1998) 4 ETSI EN 301 702 V7.1.2 (1999-12)
8 Interactions with other network features.13
8.1 Support of Optimal Routeing.13
9 Interworking considerations.13
Annex A (informative): Deviations of the GSM UUS supplementary service from the ISDN
service .15
Annex B (informative): Change history .16
History .17
ETSI
(GSM 02.87 Version 7.1.2 Release 1998) 5 ETSI EN 301 702 V7.1.2 (1999-12)
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 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 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 Technical Committee Special Mobile
Group (SMG).
The present document defines a User-to-user signalling supplementary service which allows a mobile subscriber to
send/receive a limited amount of information to/from another PLMN or ISDN subscriber over the signalling channel in
association with a call to the other subscriber within the digital cellular telecommunications system.
The present document is a SMG approved GSM technical specification version 5, which contains GSM Phase 2+
enhancements/features.
The contents of the present document is subject to continuing work within SMG and may change following formal SMG
approval. Should SMG modify the contents of the present document, it will be republished by ETSI with an identifying
change of release date and an increase in version number as follows:
Version 7.x.y
where:
7 indicates 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.
Proposed national transposition dates
Date of adoption of this EN: 3 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
(GSM 02.87 Version 7.1.2 Release 1998) 6 ETSI EN 301 702 V7.1.2 (1999-12)
1 Scope
The User-to-User Signalling (UUS) supplementary service allows a mobile subscriber to send/receive a limited amount
of information to/from another PLMN or ISDN subscriber over the signalling channel in association with a call to the
other subscriber.
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 telecommunication system (Phase 2+); Abbreviations and acronyms".
[2] GSM 02.04: "Digital cellular telecommunications system (Phase 2+); General on supplementary
services".
[3] GSM 02.30: "Digital cellular telecommunications system (Phase 2+); Man-Machine Interface
(MMI) of the Mobile Station (MS)".
3 Definitions and Abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
User-to-User Information (UUI): The information transferred by using the UUS supplementary service.
UUS service: The UUS services (Service 1, 2 and 3) are components of the UUS supplementary service. If the UUS
supplementary service is provided to a subscriber, she can handle the UUS services independently within a call.
Served subscriber: The subscriber who has a provision of the UUS supplementary service and who activates the UUS
supplementary service. For service 1 and 2 the served subscriber is always the calling subscriber, for service 3 either the
calling or the called subscriber can be the served subscriber.
Remote party: For service 1 and 2 the remote party is the called party of a call to which the UUS supplementary service
is activated by the served subscriber. For service 3 the remote party can be either the called or the calling party of an
established call to whom the use of the UUS supplementary service is requested by the served subscriber.
3.2 Abbreviations
For the purposes of the present document the following abbreviations apply.
UUS User-to-User Signalling
UUI User-to-User Information
ETSI
(GSM 02.87 Version 7.1.2 Release 1998) 7 ETSI EN 301 702 V7.1.2 (1999-12)
Further GSM related abbreviations are listed in GSM 01.04 [1].
4 Description
4.1 Description
The UUS supplementary service allows the served subscriber to send/receive a limited amount of subscriber generated
information to/from another user in association with a call to the user. This information shall be passed transparently
(i.e. without modification of contents) through the network. Normally, the network shall not interpret or act upon this
information.
The served subscriber can send and receive UUI in different phases of the call depending on the service(s) to which the
subscriber subscribes. These services are:
Service 1: UUI can be sent and received during the origination and termination of a call, with UUI embedded
within call control messages. The service 1 can be activated implicit by inserting UUI when set-up
a call or explicit with an appropriate procedure.
Service 2: UUI can be sent and received after the served subscriber has received an indication that the remote
party is being informed of the call and prior to the establishment of the connection. UUI sent by the
served subscriber prior to receiving the acceptance of the call by the remote party, may as a
network option be delivered to the remote party after the call has been established. The service 2
shall be activated explicitly.
Service 3: User-to-user-information can be sent and received only while the connection is established. The
service 3 shall be activated explicitly.
Service 1, service 2 and service 3 shall allow the transmission of UUI with the maximum length of 128 octets per
message.
4.2 Applicability to telecommunication services
The applicability of this supplementary service is defined in GSM 02.04 [2].
5 Normal procedures with successful outcome
5.1 Provision
The UUS supplementary service shall be provided to the served subscriber after pre-arrangement with the service
provider. The remote party needs no subscription of the UUS supplementary service.
NOTE: The remote party is able to send UUI without provision of the UUS supplementary service when the
service is activated against her by the served subscriber.
As a service provider option, one or any combinati
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