ETSI EG 201 897 V1.1.1 (2001-05)

SLOVENSKI STANDARD
01-november-2003
Storitve in protokoli za napredna omrežja (SPAN) - Dostop ponudnika storitve -
Zahteve dostopa ponudnika storitve v fiksnem in mobilnem okolju
Services and Protocols for Advanced Networks (SPAN) - Service Provider Access -
Service Provider Access Requirements in a Fixed and Mobile Environment
Ta slovenski standard je istoveten z: EG 201 897 Version 1.1.1
ICS:
33.040.35 Telefonska omrežja Telephone networks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

ETSI Guide
Services and Protocols for Advanced Networks (SPAN);
Service Provider Access;
Service Provider Access Requirements
in a Fixed and Mobile Environment

2 ETSI EG 201 897 V1.1.1 (2001-05)
Reference
DEG/SPAN-141602
Keywords
access, internet, management, mobility, NNI,
protocol, roaming, UMTS, UNI, UPT
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ETSI
3 ETSI EG 201 897 V1.1.1 (2001-05)
Contents
Intellectual Property Rights .6
Foreword.6
1 Scope.7
2 References.7
3 Definitions and abbreviations.8
3.1 Definitions . 8
3.2 Abbreviations. 9
4 Introduction.10
4.1 Current situation. 10
4.2 Regulatory aspects. 10
4.3 Security aspects. 11
4.4 Service interaction aspects. 12
4.5 Charging aspects . 12
4.6 Guidelines for the service provider access requirements . 13
5 Functional requirements for the service provider access .13
5.1 Location determination. 14
5.1.1 Network location determination. 14
5.1.2 Geographic location determination . 14
5.2 Management of terminal capabilities. 14
5.2.1 Determination of the terminal capabilities of the SP's service user. 14
5.2.2 Modification of the terminal capabilities of the SP's service user. 14
5.2.3 Modification of the Personality Device/Module of the SP's service user . 14
5.3 Management of the profile of the SP's service subscriber. 14
5.3.1 Alteration of the profile of the SP's service subscriber.14
5.4 Event and call management . 15
5.4.1 Indication of the disconnection of a call. 15
5.4.2 Join operation of individual legs of a call. 15
5.4.3 Split operation of individual legs of a call. 15
5.4.4 Delivery of information to the SP's service user prior to alerting . 15
5.4.5 Supervision of a dropped-back call. 15
5.4.6 Avoidance of the cyclical routeing of signalling or user messages. 15
5.4.7 Multimedia Multiparty call control. 15
5.4.8 User Interaction for Text Delivery. 15
5.4.9 User-Plane resource negotiation and selection. 15
5.5 Network Management . 16
5.5.1 Reporting of network events for measuring the quality of service. 16
5.5.2 Reporting of network events for the purpose of fault diagnostics. 16
5.5.3 Request for event monitoring and subsequent reporting . 16
5.5.4 Electronic ordering of network management functions. 16
5.6 Provision of accounting information . 16
5.6.1 Provision of call charging information in real time. 16
5.6.2 Exchange of charge detail record information in real time. 16
6 Functional requirements.17
6.1 Location determination. 17
6.1.1 Network location determination. 17
6.1.1.1 Priority. 17
6.1.1.2 Example of usage . 17
6.1.1.3 Technical aspects. 17
6.1.1.4 Information flow chart. 17
6.1.2 Geographic location determination . 18
6.1.2.1 Priority. 18
6.1.2.2 Example of usage . 18
6.1.2.3 Technical aspects. 18
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4 ETSI EG 201 897 V1.1.1 (2001-05)
6.1.2.4 Information flow chart. 19
6.2 Management of terminal capabilities. 19
6.2.1 Determination of the terminal capabilities of the SP's service user. 19
6.2.1.1 Priority. 19
6.2.1.2 Example of usage . 19
6.2.1.3 Technical aspects. 20
6.2.1.4 Information flow chart. 20
6.2.2 Modification of the terminal capabilities of the SP's service user. 22
6.2.2.1 Priority. 22
6.2.2.2 Example of usage . 22
6.2.2.3 Technical aspects. 22
6.2.2.4 Information flow chart. 23
6.2.3 Modification of the Personality Device/Module of the SP's service user . 23
6.2.3.1 Priority. 23
6.2.3.2 Example of usage . 23
6.2.3.3 Technical aspects. 23
6.2.3.4 Information flow chart. 24
6.3 Management of the profile of the SP's service subscriber. 24
6.3.1 Alteration of the profile of the SP's service subscriber.24
6.3.1.1 Priority. 24
6.3.1.2 Example of usage . 24
6.3.1.3 Technical aspects. 25
6.3.1.4 Information flow chart. 25
6.4 Event and call management . 25
6.4.1 Indication of the disconnection of a call. 25
6.4.1.1 Priority. 25
6.4.1.2 Example of usage . 25
6.4.1.3 Technical aspects. 26
6.4.1.4 Information flow chart. 26
6.4.2 Join operation of individual legs of a call. 26
6.4.2.1 Priority. 26
6.4.2.2 Example of usage . 27
6.4.2.3 Technical aspects. 27
6.4.2.4 Information flow chart. 27
6.4.3 Split operation of individual legs of a call. 27
6.4.3.1 Priority. 27
6.4.3.2 Example of usage . 27
6.4.3.3 Technical aspects. 27
6.4.3.4 Information flow chart. 28
6.4.4 Delivery of information to the SP's service user prior to alerting . 28
6.4.4.1 Priority. 28
6.4.4.2 Example of usage . 28
6.4.4.3 Technical aspects. 29
6.4.4.4 Information flow chart. 29
6.4.5 Supervision of a dropped-back call. 29
6.4.5.1 Priority. 29
6.4.5.2 Example of usage . 29
6.4.5.3 Technical aspects. 29
6.4.5.4 Information flow chart. 30
6.4.6 Avoidance of the cyclical routeing of signalling or user messages. 30
6.4.6.1 Priority. 30
6.4.6.2 Example of usage . 30
6.4.6.3 Technical aspects. 30
6.4.6.4 Information flows . 30
6.4.7 Multimedia Multiparty call control. 30
6.4.7.1 Priority. 31
6.4.7.2 Example of usage . 31
6.4.7.3 Technical aspects. 31
6.4.7.4 Information flow chart. 32
6.4.8 User Interaction for Text Delivery. 32
6.4.8.1 Priority. 32
6.4.8.2 Example of usage . 32
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5 ETSI EG 201 897 V1.1.1 (2001-05)
6.4.8.3 Technical aspects. 32
6.4.8.4 Information flow chart. 33
6.4.9 User-Plane resource negotiation and selection. 33
6.4.9.1 Priority. 33
6.4.9.2 Example of usage . 33
6.4.9.3 Technical aspects. 33
6.4.9.4 Information flow chart. 34
6.5 Network management events . 34
6.5.1 Reporting of network events for measuring the quality of service. 34
6.5.1.1 Priority. 34
6.5.1.2 Example of usage . 34
6.5.1.3 Technical aspects. 35
6.5.1.4 Information flow chart. 35
6.5.2 Reporting of network events for the purpose of fault diagnostics. 35
6.5.2.1 Priority. 35
6.5.2.2 Example of usage . 35
6.5.2.3 Technical aspects. 35
6.5.2.4 Information flow chart. 36
6.5.3 Request for event monitoring and subsequent reporting . 36
6.5.3.1 Priority. 36
6.5.3.2 Example of usage . 36
6.5.3.3 Technical aspects. 36
6.5.3.4 Information flow chart. 37
6.5.4 Electronic ordering of network management functions. 37
6.5.4.1 Priority. 37
6.5.4.2 Example of usage . 37
6.5.4.3 Technical aspects. 37
6.5.4.4 Information flow chart. 38
6.6 Provision of call charging information . 38
6.6.1 Provision of call charging information in real time. 38
6.6.1.1 Priority. 38
6.6.1.2 Example of usage . 38
6.6.1.3 Technical aspect . 38
6.6.1.4 Information flow chart. 39
6.6.2 Exchange of charge detail record information in real time. 39
6.6.2.1 Priority. 39
6.6.2.2 Example of usage . 39
6.6.2.3 Technical aspect . 39
6.6.2.4 Information flow chart. 40
7 Architectural view of the service provider access .40
Annex A (informative): Bibliography.41
History .42
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6 ETSI EG 201 897 V1.1.1 (2001-05)
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 ETSI Guide (EG) has been produced by ETSI Technical Committee Services and Protocols for Advanced
Networks (SPAN).
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7 ETSI EG 201 897 V1.1.1 (2001-05)
1 Scope
The present document lists the second set of network access requirements that service providers (SP) have in delivering
telecommunication services including, but not limited to, second and third generation mobile, cordless and fixed
services, over one or more operator's networks. As used here, telecommunication services include: voice telephony,
multimedia and data, to name a few areas. The network requirements also include mobility-, Internet- and
broadband-related aspects that were not yet covered by the preceding EG 201 722 [4] which address the first set of
access requirements that service providers (SPs) have in delivering services over one or more public
telecommunications networks (PTNs), primarily fixed PTNs, A companion document, EG 201 807 [5] addresses
network operators' requirements for the delivery of service provider access.
The scope of the present document is to describe generic functional requirements regarding the service provider access
(SPA). The priority of each requirement is based on the need perceived from the service provider's viewpoint. To fulfil
these requirements, appropriate protocols may have to be enhanced or developed based on information flows and taking
into account network integrity considerations expressed in the present document.
Clause 4 contains introductory text describing the background and motivations of the second set of requirements of a
SPA. Clause 5 contains a summary of requirements regarding the service provider access interface (SPAI) and a
framework that helps the reader to get an overview. Clause 6 contains a description of the requirements involving
circuit-related (CR) and non-circuit related (NCR) aspects of the SPAI.
The present document relates to the role of the SP and the role of the public network operator (PNO), with the
realization that market players may act in multiple roles. This is in alignment with the current EC directives.
Service interaction aspects 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 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.
[1] ETSI ETR 322: "Intelligent Network (IN); Vocabulary of terms and abbreviations for CS-1 and
CS-2".
[2] Directive 98/10/EC of the European Parliament and of the Council of 26 February 1998 on the
application of open network provision (ONP) to voice telephony and on universal service for
telecommunications in a competitive environment.
[3] Directive 97/33/EC of the European Parliament and of the Council of 30 June 1997 on
interconnection in Telecommunications with regard to ensuring universal service and
interoperability through application of the principles of Open Network Provisions (ONP).
[4] ETSI EG 201 722: "Intelligent Network (IN); Service provider access requirements; Enhanced
telephony services".
[5] ETSI EG 201 807: "Network Aspects (NA); Intelligent Network (IN); Network operators'
requirements for the delivery of service provider access".
[6] ETSI EG 201 899: "Services and Protocols for Advanced Networks (SPAN); Service Provider
Access; Modelling service provider access requirements using an API approach".
[7] ETSI ETS 300 374-1: "Intelligent Network (IN); Intelligent Network Capability Set 1 (CS1); Core
Intelligent Network Application Protocol (INAP); Part 1: Protocol specification".
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8 ETSI EG 201 897 V1.1.1 (2001-05)
[8] ETSI EN 301 140-1: "Intelligent Network (IN); Intelligent Network Application Protocol (INAP);
Capability Set 2 (CS2); Part 1: Protocol specification".
[9] Directive 97/66/EC of the European Parliament and Council on the processing of personal data
and the protection of privacy in the telecommunications sector.
[10] ETSI ES 201 158: "Telecommunications Security; Lawful Interception (LI); Requirements for
network functions".
[11] ETSI EG 201 781: "Intelligent Networks (IN); Lawful interception".
[12] ETSI ETR 339: "Intelligent Network (IN); IN interconnect business requirements".
[13] ETSI TR 101 664: "Intelligent Network (IN); IN interconnect security features".
[14] CEPT/ECTRA Recommendation of 12 March 1998 on a Set of Guidelines on Responsibilities for
ensuring maintenance of Network Integrity (NI) in an interconnected environment.
[15] ETSI TR 101 365: "Intelligent Network (IN); IN interconnect threat analysis".
[16] ETSI EN 301 152-1: "Intelligent Network (IN); Intelligent Network Capability Set 1 (CS1)
extension; Intelligent Network Application Protocol (INAP); Customised Applications for Mobile
network Enhanced Logic (CAMEL); Part 1: Protocol specification".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
calling line identity: number that uniquely identifies a subscriber line that is used for a call
circuit-related interface: signalling connection between a public telecommunications network operator and a service
provider, with the extension of the call connection from the public telecommunications network to the service provider's
equipment
end user: see "service user" definition
network-network interface: interface at a network node which is used to interconnect a network node with another
network. This interface is used for Inter-connection of two or more networks
non-call-related: call-unrelated
non-circuit-related interface: control connection between a public telecommunications network operator and a service
provider, without the extension of the call connection from the public telecommunications network to the service
provider's equipment
public telecommunications network operator: entity which is responsible for the development, provisioning and
maintenance of telecommunications services to the general public and for operating the corresponding networks
public telecommunications network: telecommunications network which provides telecommunications services to the
general public
public telecommunications network originating: PTN to which either the originating line is directly connected or in
which an incoming call initiates a service
public telecommunications network terminating: PTN to which either the terminating line is directly connected or in
which the terminating line's user profile is stored
service provider access requirement: requirement for access by a service provider to specific functionality of a public
telecommunication network
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9 ETSI EG 201 897 V1.1.1 (2001-05)
service: that which is offered by an administration or recognized private operating agency (i.e. a public or private
service provider) to its customers in order to satisfy a telecommunication requirement
service provider: entity which provides services to its service subscribers on a contractual basis and who is responsible
for the services offered. The same organization may act as a public telecommunications network operator and a service
provider
service provider access: access facility that enables a service provider to access specific functionality of a public
telecommunications network
service provider access interface: interface between a public telecommunications network and a service provider's
equipment for enabling the service provider to access specific functionality of a public telecommunications network
service provider originating: service provider that provides either services relating to the originating line (or to the
originating profile), or services acting on the information coming from the originating or incoming call
service provider terminating: service provider that provides either services relating to the terminating line (or to the
terminating profile), or services acting on the call-related information coming from the terminating party's line
service subscriber: entity that contracts for services offered by service providers
service user: entity external to the network that uses its services
user-network interface: interface between the terminal equipment and a network termination point at which the access
protocols apply
3.2 Abbreviations
For the purposes of the present document, the following abbreviations apply:
API Application Programming Interface
ATM Asynchronous Transfer Mode
CAMEL Customized Applications for Mobile Network Enhanced Logic
CdPy Called Party
CgPy Calling Party
CLI Calling Line Identity
CR Circuit-Related
CS2 IN Capability Set #2
EC European Commission
ETSI European Telecommunications Standards Institute
GPS Global Positioning System
ID Identifier
IMSI International Mobile Subscriber Identity
IN Intelligent Network
INAP Intelligent Network Application Protocol
IP Internet Protocol
ITU-T International Telecommunications Union -Telecom sector
NCR Non-Circuit-Related
NNI Network-Network Interface
NRA National Regulatory Authority
PNO Public Network Operator
PTN Public Telecommunications Network
PTNO Public Telecommunications Network Operator
PTNorig originating Public Telecommunications Network
PTNterm terminating Public Telecommunications Network
PTNv visited Public Telecommunications Network
SMS Short Message Service
SP Service Provider
SPorig originating Service Provider
SPterm terminating Service Provider
SPA Service Provider Access
SPAI Service Provider Access Interface
SPAR Service Provider Access Requirements
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10 ETSI EG 201 897 V1.1.1 (2001-05)
SSL Secure Socket Layer
SVC Switched Virtual Circuit
UNI User-Network Interface
USIM User Services Identity Module
4Introduction
4.1 Current situation
Different types of network control (or signalling) interfaces exist within a public telecommunications network (PTN),
between PTNs and for those accessing the PTNs.
There are provisions in two of the open network provisions directives of the European Commission [2] and [3] that
provide a regulatory framework for organizations delivering publicly available telecommunications services. These
provisions request non-discriminatory access to the networks of those public telecommunications network operators
(PTNOs) which have been determined as having "significant market power" (SMP).
Therefore, in order to enable service providers (SPs) to deliver services by utilizing the network functionality of one or
more PTNs, a specific service provider access interface (SPAI) may become necessary.
Document EG 201 722 [4] defines the first set of service providers' access requirements leading to enhancements of the
existing network-to-network interfaces (NNI) and user-to-network interfaces (UNI) to have the necessary functionality
to meet the SPA requirements. A companion document, EG 201 807 [5] addresses network operators' requirements for
the delivery of service provider access. Document EG 201 899 [6] on modelling service provider requirements using an
API approach is next in a sequence leading to API definitions in ES 201 915.
The present document defines an enhanced set of service providers' access requirements for mobile, Internet and
broadband networks and includes issues deferred from EG 201 722 [4].
The existing IN interfaces defined within the ETSI and ITU-T as part of INAP CS1 [7] were designed primarily for
intra-network use with IN CS2 [8] offering an initial inter-network IN control relationship, neither were specifically
designed to meet the requirements of an "open" access interface or to incorporate features that ensure network access
integrity and security.
It is seen, therefore, as desirable to develop standardized interfaces to meet the SPA requirements that include features
to ensure network integrity and security. There may also be a need to consider service feature interaction. These
standardized interfaces are referred to, in the present document, as service provider access interface (SPAI).
4.2 Regulatory aspects
The EC directives that address Access and Interconnect matters are the Voice Telephony Directive (98/10 [2]) and the
Interconnect Directive (97/33 [3]). The former is limited to fixed telephony networks and services, whilst the latter
includes both mobile and fixed networks and services.
The Interconnect Directive [3] requires that certain organizations meet all reasonable requests for access at points other
than the network termination points offered to the majority of end users. It will be a matter for the national regulatory
authorities (NRA) in respective countries to interpret and implement this clause into their national regulations or
authorization policies.
The current regulatory regime in the EC is now under review and the Commission are intending in the near future to
restructure and rationalize the existing telecommunication legislation and ultimately to create a new regulatory
framework. The new framework is likely to focus on a number of specific directives - licensing, access and
interconnection, universal service, and data protection, and therefore the regulatory issues concerned with access may
be revised.
All the functional requirements in the present document that are related to the usage and delivery of the calling line
identity (CLI) must be in accordance with the legal and regulatory provisions in each country, as well as the general
provision of the European directive of privacy and data protection [9].
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11 ETSI EG 201 897 V1.1.1 (2001-05)
Also the technical requirements of legal interception [10] and [11] will need to accord with the specific national
regulations on security and interception that are in the force in the respective countries.
Those service providers wishing to operate in one or more countries will need to comply with the specific regulatory
requirements of the different NRAs. This may entail some kind of authorization or other rules which are applicable in
various countries. Such rules may for instance include the procedures by which the service providers are allocated
numbers for their specific services.
The emerging ETSI technical specifications or standards relating to the service provider access interfaces that will be
based on the functional requirements specified in the present document may be used in all commercial negotiations
between an SP seeking access and a PNO offering access. As already stated, any regulatory requirements relevant to the
provision of access will be a matter for NRAs in respective countries.
4.3 Security aspects
End users, SPs and PTNOs have a range of different business objectives and requirements regarding the provision of
telecommunication services over PTNs. A number of those objectives have been identified [12]. In order to meet them,
security aspects need to be carefully considered in a new environment with a multitude of interconnections and access
configurations for service providers.
From the viewpoint of the end users, the key requirements are:
- availability of the services;
- correct billing;
- fraud protection;
- confidentiality; and
- privacy.
From the viewpoint of the SPs and PTNOs, the key requirements are:
- availability of the network, services, and maintenance;
- correct charging;
- capability of tracing individual calls;
- protection of subscriber-related data against intruders; and
- elimination of fraudulent use of the equipment of the PTNOs and SPs.
Security violations may have a significant negative business impact for both SPs and NOs, e.g. loss of income,
reputation and market share.
In particular, network integrity is a key issue when inter-network relationships are established between PTNOs and SPs.
In the connection of the SPA, a basic set of facilities may be needed to secure the interfaces between the PTNOs and
SPs [13] and [14]. A threat analysis of IN-based interconnections is presented in TR 101 365 [15], and some guidelines
on the relevant security measures are given in TR 101 664 [13].
Screening and mapping functions are used to control and secure bilateral agreements on the interfaces between the
PTNs. Today, the PTNOs have screening and mapping facilities on some of the inter-connecting NNIs, such as the
ISUP connections. These facilities and functions need to be gradually extended to cover all of the interfaces between the
PTNOs and SPs.
Further security aspects associated with mobile, Internet and broad-band networks include transfer of terminal/personal
identity information (e.g. IMSI, Electronic Signature, etc.) between the User Environment and the service provider, or
the support of secure end-end transmission between the user terminal and the service provider application (e.g. Secure
Socket Layer (SSL) and ciphering technologies).
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12 ETSI EG 201 897 V1.1.1 (2001-05)
4.4 Service interaction aspects
In an environment where an end user subscribes to a range of services from more than one provider,
...