ETSI I-ETS 300 292 ed.1 (1995-01)

Network Aspects (NA); Functional specification of call routeing information management on the Operations System/Network Element (OS/NE) interface

DI/NA-043310

Omrežni vidiki (NA) – Funkcijska specifikacija upravljanja informacije usmerjanja klica na vmesniku operacijski sistem/omrežni element (OS/NE)

General Information

• Status: Published
• Publication Date: 12-Jan-1995
• Technical Committee: NA 4 - Network Architecture, Operations, Maintenance, Principle & Performance
• Current Stage: 12 - Completion
• Due Date: 23-May-1994
• Completion Date: 13-Jan-1995
• Ref Project: SIST I-ETS 300 292 E1:2003 - Network Aspects (NA); Functional specification of call routeing information management on the Operations System/Network Element (OS/NE) interface

Standards Content (Sample)

SLOVENSKI STANDARD
SIST I-ETS 300 292 E1:2003
01-december-2003
Omrežni vidiki (NA) – Funkcijska specifikacija upravljanja informacije usmerjanja
klica na vmesniku operacijski sistem/omrežni element (OS/NE)
Network Aspects (NA); Functional specification of call routeing information management
on the Operations System/Network Element (OS/NE) interface
Ta slovenski standard je istoveten z: I-ETS 300 292 Edition 1
ICS:
33.040.35 Telefonska omrežja Telephone networks
SIST I-ETS 300 292 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST I-ETS 300 292 E1:2003

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SIST I-ETS 300 292 E1:2003
INTERIM
EUROPEAN I-ETS 300 292
TELECOMMUNICATION January 1995
STANDARD
Source: ETSI TC-NA Reference: DI/NA-043310
ICS: 33.080
Interface, management, routeing, TMN
Key words:
Network Aspects (NA);
Functional specification of call routeing information management
on the Operations System/Network Element (OS/NE) interface
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 - [e-mail]
X.400: Internet:
Tel.: [phone] - Fax: [phone]
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 .7
1 Scope .9
2 Normative references.10
3 Definitions, symbols and abbreviations.10
3.1 Definitions .10
3.2 Symbols and abbreviations.11
4 Description .11
5 Information model .12
5.1 Information model description.12
5.2 Information model diagrams .14
6 Information model description.19
6.1 AnalysisCriteria .19
6.2 CallingPartyAspects.20
6.3 CallHistoryMatchingParameters .21
6.4 DigitElement.22
6.5 DigitManipulation .23
6.6 DigitPreparationCriteria.23
6.7 DigitRebuildingCriteria .24
6.8 Exception .25
6.9 ExchangeTerminationPoint.26
6.10 ExchangeTerminationPointSubGroup .26
6.11 LocalDestination .28
6.12 ManagedSwitchingElement .28
6.13 OrderedListXTPSGComb .28
6.14 RouteSelectionCriteria.29
6.15 routeingTarget.30
6.16 Treatment .31
6.17 X-OGroup .32
6.18 XTPSGComb.32
7 Formal definitions.34
7.1 Definition of managed objects .34
7.1.1 Analysis criteria .34
7.1.2 Call history matching parameters.34
7.1.3 Calling party aspects .34
7.1.4 Digit rebuilding criteria.35
7.1.5 Digit element .35
7.1.6 Digit manipulation.35
7.1.7 Digit preparation criteria .36
7.1.8 Exceptions.36
7.1.9 Local destination .36
7.1.10 Ordered list XTPSG combination .36
7.1.11 Route selection criteria.37
7.1.12 Routeing target.37
7.1.13 Treatment.37
7.1.14 X-O Group.37
7.1.15 XTPSG combination.38
7.2 Definition of attributes .38
7.2.1 activeOrderedListXTPSGComb .38
7.2.2 analysisCriteriaId.38
7.2.3 calledNumberingPlans .38

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7.2.4 callingPartyAspectsId. 38
7.2.5 callingPartyAspectList. 38
7.2.6 callingPartyCat. 38
7.2.7 decisions. 38
7.2.8 decisionTypes. 39
7.2.9 digitCombInsert. 39
7.2.10 digitCombReplace . 39
7.2.11 digitElementId . 39
7.2.12 digitManipId. 39
7.2.13 digitManipInstance. 39
7.2.14 digitParticipationIndicator. 39
7.2.15 digitSuppress . 39
7.2.16 echoSuppressor. 39
7.2.17 exceptionsId. 39
7.2.18 historyId . 40
7.2.19 incomingX-oGroups. 40
7.2.20 languageCodePosition. 40
7.2.21 listOfHistory . 40
7.2.22 listOfXTPSGs . 40
7.2.23 listOfXTPSGCombs. 40
7.2.24 localDestinationId . 40
7.2.25 matchesIf . 40
7.2.26 natureOfAddresses. 40
7.2.27 noOfSatLinks . 41
7.2.28 orderedListXTPSGCombId. 41
7.2.29 originGroups . 41
7.2.30 outDigitsPrimId . 41
7.2.31 outgoingX-oGroups. 41
7.2.32 digitRebuildingCriteriaId. 41
7.2.33 reqBearerCapab . 41
7.2.34 reqSignCapab. 41
7.2.35 routeSelectionCriteriaId . 41
7.2.36 routeingTargetId . 41
7.2.37 routeingTargetIds. 42
7.2.38 routeingTargetInstance. 42
7.2.39 schedulingAttribute . 42
7.2.40 transitNetworkSelection. 42
7.2.41 treatmentId. 42
7.2.42 treatmentInstance. 42
7.2.43 usedAlgorithm. 42
7.2.44 x-oGroupId. 42
7.2.45 x-oGroups. 42
7.2.46 xtpsgCombId. 43
7.2.47 xtpsgList. 43
7.3 Name bindings . 43
7.3.1 Analysis criteria. 43
7.3.2 Call history matching parameters . 43
7.3.3 Calling party aspects. 43
7.3.4 Digit rebuilding criteria . 43
7.3.5 Digit manipulation . 43
7.3.6 Digit preparation criteria. 44
7.3.7 Digit element. 44
7.3.8 Exceptions . 44
7.3.9 Local destination. 44
7.3.10 Ordered list XTPSG combination . 44
7.3.11 Route selection criteria . 44
7.3.12 Routeing target . 44
7.3.13 Treatment . 45
7.3.14 X-O Group . 45
7.3.15 XTPSG combination . 45
7.4 ASN.1 defined types module. 46
7.5 Cross reference list . 48

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Annex A (informative): Explanation of object classes for routeing information management.49
Annex B (informative): Explanation of object classes for management of test calls.58
Annex C (informative): Candidate object classes for other management services.59
Annex D (informative): Formal description of object classes defined in I-ETS 300 293 .60
D.1 Definition of managed objects.60
D.2 Definiton of attributes .61
D.3 Name bindings .62
D.4 Definition of actions.62
D.5 ASN.1 defined types module.63
Annex E (informative): Bibliography.65
History.67

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Foreword
This Interim European Telecommunication Standard (I-ETS) has been produced by the Network Aspects
(NA) Technical Committee of the European Telecommunications Standards Institute (ETSI).
An ETSI standard may be given I-ETS status either because it is regarded as a provisional solution ahead
of a more advanced standard, or because it is immature and requires a "trial period". The life of an I-ETS
is limited to three years after which it can be converted into an ETS, have it's life extended for a further
two years, be replaced by a new version, or be withdrawn.
This I-ETS provides a management information model which covers the management aspects of the
"routeing and digit analysis" function in an exchange.
Proposed announcement date
Date of latest announcement of this I-ETS (doa): 30 April 1995

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1 Scope
This Interim European Telecommunication Standard (I-ETS) provides a management information model
which covers the management aspects of the "routeing and digit analysis" function in an exchange. The
scope is further limited to the Network Element (NE) aspects of circuit switched networks. This model is
restricted to the Operations Systems (OS) to NE (Q3) interface (see ETR 037). The information to be
managed is limited to the signalling systems DSS1, C5, ISUP and R2. The signalling system No. 7
Telephone User Part (TUP) is not considered.
The information model covers the management of the routeing aspects of:
- local originating, local terminating, and transit calls;
- digit analysis;
- termination point selection;
- outgoing digit preparation;
- announcements.
The information model does not cover:
- traffic management (including circuit reservation, including dynamic aspects of proportionate
bidding);
- management aspects of call-processing;
- management aspects for routeing of supplementary services;
- management aspects for Intelligent Network (IN);
- relation with customer administration information model;
- relations with other management services of which the definition is still in a premature state (e.g.
charging);
- states of object classes (a mixed relation with traffic management);
- Private Automatic Branch Exchange (PABX) as NEs or Exchange Termination Points (XTPs) of
subscriber lines (the scope excludes centrex implementations);
- mobility issues like cellular and personal mobility.
In order to claim conformance to this specification, a system needs to support the management functions
for all managed object classes defined in clause 7 of this I-ETS. Therefore, clause 6 and clause 7 form
the mandatory part of this I-ETS.

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2 Normative references
This I-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 I-ETS only when incorporated in it by amendment or revision. For undated references the
latest edition of the publication referred to applies.
[1] I-ETS 300 293: "Telecommunications Management Network (TMN); Generic
managed objects".
[2] CCITT Recommendation M.3100 (1992): "Generic network information model".
[3] CCITT Recommendation X.721 (1992): "Information technology - Open
Systems Interconnection - Structure of management information: Definition of
management information".
[4] ITU-T Recommendation Q.763 (1993): "Formats and codes".
[5] ITU-T Recommendation Q.850 (1993): "Use of cause and location in digital
subscriber signalling system No. 1 and Signalling System No. 7 ISDN user part".
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of this I-ETS, the following definitions apply:
analysis criteria: The basic set of information elements to determine the routeingTarget or local
destination.
circuit subgroup: A set of circuits between the same two exchanges having similar characteristics, i.e.
having the same signalling characteristics, the same bearer capabilities and other characteristics. From
an exchange view point, circuit subgroups are terminated by an Exchange Termination Point Subgroup
(XTPSG).
circuit: A connection between two exchanges. From an exchange view point, circuits are terminated by
an exchange termination point.
containment: A structuring relationship for managed objects in which the existence of a managed object
is dependent on the existence of a containing managed object (CCITT Recommendation X.720). In this
model this relationship (indicated in the diagrams as "contains") is represented by a name binding (also
described in CCITT Recommendation X.720).
digit preparation criteria: The basic set of information elements to determine the modifications of the
digits, which need to be prepared for the next exchange in the call set-up process.
digit rebuilding criteria: Are the basic set of information elements to determine the modification of
incoming digits, which need to be replaced before the digits are analysed.
Exchange Termination Point (XTP): Terminates a circuit.
Exchange Termination Point Subgroup (XTPSG): A set of XTPs with similar characteristics for call
routeing, i.e. the same signalling characteristics, the same bearer capabilities, the same endpoints and
other characteristics.
Network Element (NE): A network element consists of telecommunication equipment and support
equipment that performs network element functions and has one or more standard Q-type interfaces
(CCITT Recommendation M.3010).

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Operations System (OS): Is the stand-alone system which performs operation system functions (CCITT
Recommendation M.3010).
route selection criteria: are the basic set of information elements on which the set of possible XTPSGs
to reach a routeingTarget will be selected.
routeing target: Is a set of terminal points, which are not distinguishable from a call routeing point of
view, as seen by a particular exchange, i.e. for all terminal points of the set, the same XTPSGs can be
used.
terminal point: Is a point which has a unique geographical address in a network (which has been
provided for by the network provider). It can be an exchange, a subscriber installation, etc. A terminal
point is independent of the exchange in which the call is in progress.
3.2 Symbols and abbreviations
For the purposes of this I-ETS, the following symbols and abbreviations apply:
DCME Digital Circuit Multiplication Equipment
CCS Common Channel Signalling
E-R Entity Relationship
IN Intelligent Network
ISDN Integrated Services Digital Network
ISUP ISDN User Part
NE Network Element
NEM Network Element Management
NM Network Management
OS Operations System
PABX Private Automatic Branch Exchange
PSTN Public Switched Telephone Network
TMN Telecommunication Management Network
TUP Telephone User Part
VPN Virtual Private Network
XTP Exchange Termination Point
XTPSG Exchange Termination Point Subgroup
4 Description
The purpose of management of routeing information in an exchange is to allow either a traffic or a
routeing manager to change the static routeing information. In specifying the managed object classes for
routeing, certain requirements need to be met:
- define functionality in such a way that routeing information may be changed easily;
- it shall be possible to switch between sets of routeing information according to a predefined timing
schedule, e.g. by introducing scheduling for routeing information;
- it shall be possible to verify routeing information in an exchange with a minimal distortion in the
normal operation of an exchange;
- avoid redundant information at NEs by making use of objects, representing resources, which exist
during run-time;
- it shall be possible to expand the model with future requirements, therefore, the specification of
object classes for routeing purposes shall be expandable.
The scope of this model is limited to the management aspects of digit analysis and call routeing.
Management of call processing information and traffic management are not covered. Because the borders
between call processing, digit analysis, routeing and traffic management are not always clear, some
readers may find certain items missing, whereas other readers may find items which are not part of the
scope.

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The following rules are used to differentiate between call processing, digit analysis and routeing, and
traffic management:
- digit analysis and routeing processes are related to the exchange termination point which the call
ultimately "locally connects" with. If the managed item has no relation with the choice of the
termination point, then this managed item is not part of the management of digit analysis and
routeing;
- call processing are processes related to whether or not a call is required to be routed and when the
call is required to be routed. Those managed items do not influence the choice of termination point;
- the border between traffic management and routeing is based on normal conditions which are
foreseen as the routeing behaviour and controls when unexpected conditions occur (traffic
management).
The information for routeing purposes, which needs to be maintained by the manager, depends on the
signalling system used by the exchange. This information model can be applied for exchanges with the
known standardized signalling systems (DSS1, CCS7, R2, C5). Because of the different signalling
systems, not all attributes and objects will be applicable for all exchanges. Applicability in the behaviour of
the object classes.
5 Information model
5.1 Information model description
The management information model in this I-ETS represents the management information of call routeing.
In order to describe the management aspects of routeing, the routeing function has been divided into two
parts:
a) the identification of the routeingTarget for the call is made by analysis of the called number and by
means of other information;
b) the selection of a free circuit within a set of suitable circuits on which the call may be progressed. In
case the destination is inside the exchange the appropriate exchange termination point(s) has to be
selected.
For identification of the routeingTarget, information about the call is obtained to decide which incoming
digits need to be modified. Other information of the call, combined with the digits (which may have been
modified) is obtained in order to determine the identity of routeingTarget.
For circuit selection, management aspects are covered to correlate the routeingTarget and additional
information with a suitable set of circuits. This correlation includes the traffic assignment rules to circuits
within the possible set. After the selection of a free circuit the digits might need to be prepared for the
adjacent exchange.

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Identification of routeingTarget fragment
Digit manipulation can be done for at least three reasons, digit rebuilding, digit preparation, digit
translation.
Digit rebuilding is an activity on incoming digits, and digit preparation is an activity for outgoing digits. The
transformation is additional to the original digits (i.e. before translation) and independent of the real
original digits for these two cases. As an example both di
...