ETSI ETS 300 695 ed.1 (1996-03)

SLOVENSKI STANDARD
SIST ETS 300 695 E1:2003
01-december-2003
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Private Integrated Services Network (PISN); Cordless Terminal Mobility (CTM); Call
handling additional network features; Functional capabilities and information flows
Ta slovenski standard je istoveten z: ETS 300 695 Edition 1
ICS:
33.040.35 Telefonska omrežja Telephone networks
SIST ETS 300 695 E1:2003 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ETS 300 695 E1:2003
EUROPEAN ETS 300 695
TELECOMMUNICATION March 1996
STANDARD
Source: ETSI TC-BTC Reference: DE/BTC-01036
ICS: 35.120
Key words: PISN, CTM, mobility, ANF, stage 2, PTN
Private Integrated Services Network (PISN);
Cordless Terminal Mobility (CTM);
Call handling additional network features;
Functional capabilities and information flows
ETSI
European Telecommunications Standards Institute
ETSI Secretariat
Postal address: F-06921 Sophia Antipolis CEDEX - FRANCE
Office address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCE
X.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: secretariat@etsi.fr
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 1996. All rights reserved.

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ETS 300 695: March 1996
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
1 Scope .7
2 Normative references.7
3 Definitions and abbreviations .8
3.1 Definitions .8
3.2 Abbreviations .9
4 ANF-CTMI .9
4.1 Description.9
4.2 Derivation of the functional model .9
4.2.1 Functional model description.9
4.2.2 Description of functional entities.10
4.2.2.1 CTM incoming call execution, FE1.10
4.2.2.2 CTM incoming call detection and control, FE2.10
4.2.2.3 Routing information provision, FE3 .10
4.2.2.4 Visited location control and execution, FE4.10
4.2.2.5 CTM service access agent, FE5.10
4.2.3 Relationship with a basic service .10
4.3 Information flows.11
4.3.1 Information flow sequences .11
4.3.2 Definition of information flows .13
4.3.2.1 DIVERT.13
4.3.2.2 ENQUIRE .14
4.3.2.3 INFORM.14
4.4 SDL diagrams for functional entities.14
4.4.1 Behaviour of FE1.15
4.4.2 Behaviour of FE2.16
4.4.3 Behaviour of FE3.17
4.4.4 Behaviour of FE4.18
4.4.5 Behaviour of FE5.19
4.5 Functional Entity Actions (FEAs) .19
4.5.1 FEAs of FE1.19
4.5.2 FEAs of FE2.19
4.5.3 FEAs of FE3.19
4.5.4 FEAs of FE4.20
4.5.5 FEAs of FE5.20
4.6 Allocation of functional entities to physical locations .20
4.7 Interworking considerations .20
5 ANF-CTMO .21
5.1 Description.21
5.2 Derivation of the functional model .21
5.2.1 Functional model description.21
5.2.2 Description of functional entities.21
5.2.2.1 CTM outgoing call detection and control, FE1.21
5.2.2.2 Visited location information provision, FE2.21
5.2.2.3 Home location CTM call control, FE3.21
5.2.3 Relationship with a basic service .21
5.3 Information flows.22
5.3.1 Information flow sequences .22
5.3.2 Definition of information flows .23
5.3.2.1 INFORM1.23
5.3.2.2 VERIFY.23
5.4 SDL diagrams for functional entities.24

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5.4.1 Behaviour of FE1 . 24
5.4.2 Behaviour of FE2 . 25
5.4.3 Behaviour of FE3 . 25
5.5 Functional Entity Actions (FEAs). 25
5.5.1 FEAs of FE1 . 26
5.5.2 FEAs of FE2 . 26
5.5.3 FEAs of FE3 . 26
5.6 Allocation of functional entities to physical locations. 26
5.7 Interworking considerations . 26
History. 27

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ETS 300 695: March 1996
Foreword
This European Telecommunication Standard (ETS) has been produced by the Business
Telecommunications (BTC) Technical Committee of the European Telecommunications Standards
Institute (ETSI).
Transposition dates
Date of adoption of this ETS: 15 March 1996
Date of latest announcement of this ETS (doa): 30 June 1996
Date of latest publication of new National Standard
or endorsement of this ETS (dop/e): 31 December 1996
Date of withdrawal of any conflicting National Standard (dow): 31 December 1996

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Blank page

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1 Scope
This European Telecommunication Standard (ETS) describes the stage two of the Cordless Terminal
Mobility (CTM) call handling services for Private Integrated Services Networks (PISNs). It comprises two
related but distinct service descriptions, CTM Incoming Call Handling Additional Network Feature
(ANF–CTMI) and CTM Outgoing Call Handling Additional Network Feature (ANF-CTMO).
ANF-CTMI directs incoming calls to a CTM user within a PISN regardless of the CTM user's geographical
location within the PISN, provided the CTM user's location is known.
ANF-CTMO detects an outgoing call or request for a supplementary service from a CTM user and
establishes it as a basic call or signalling connection, respectively, regardless of the user's geographical
location within the PISN. It also provides the CTM user's service profile for use by outgoing call control, or
alternatively passes the call to the CTM user's home location for processing.
These ANFs are applicable to all circuit-mode basic services as defined in ETS 300 171 [1].
This ETS contains the stage 2 specifications of ANF-CTMI and ANF-CTMO. It identifies the functional
entities involved in the feature and the information flows between them. The specification of information
flows between the PISN and cordless terminals is beyond the scope of this ETS. ANF specifications are
produced in three stages according to the method specified in ETS 300 387 [4].
The purpose of the stage 2 specification is to guide and constrain the work on signalling protocols at
stage 3, while fulfilling the requirements of stage 1. Stage 1 and stage 3 are defined in separate
standards.
Conformance to this ETS is met by conforming to a stage 3 standard which fulfils the requirements of this
ETS that are relevant to the equipment for which the stage 3 standard applies. Therefore, no method of
testing is provided for this ETS.
2 Normative references
This ETS incorporates by dated or 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 only when incorporated in it by amendment or revision. For undated references the latest edition of
the publication referred to applies.
[1] ETS 300 171 (1992): "Private Telecommunication Network (PTN); Specification,
functional models and information flows; Control aspects of circuit mode basic
services".
[2] ETS 300 415 (1995): "Private Telecommunication Network (PTN); Terms and
definitions".
[3] ETS 300 237 (1993): "Private Telecommunication Network (PTN) –
Specification, functional model and information flows - Name identification
supplementary services".
[4] ETS 300 387 (1994): "Private Telecommunication Network (PTN); Method for
the specification of basic and supplementary services ".
[5] ITU-T Recommendation I.210 (1993): "Principles of telecommunication services
supported by an ISDN and the means to describe them".
[6] ITU-T Recommendation Z.100 (1993): "Specification and description language
(SDL)".
[7] ISO/IEC 11579-1 (1994): "Information technology - Telecommunications and
information exchange between systems - Private Integrated Services
Network - Part 1: Reference configurations for PISN exchanges (PINX)".

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[8] ISO/IEC 11571 (1994): "Information technology - Telecommunications and
information exchange between systems - Numbering and Sub-addressing in
Private Integrated Services Network".
3 Definitions and abbreviations
3.1 Definitions
For the purposes of this ETS, the following definitions apply:
Additional Network Feature (ANF): See ETS 300 415 [2].
address: See ETS 300 415 [2].
call; basic call: See ETS 300 171 [1].
calling user’s name: See ETS 300 237 [3]
Cordless Terminal Mobility (CTM): The ability of a cordless terminal to be in continuous motion whilst
accessing and using the telecommunications services offered by the PISN as well as the capability of the
network to keep track of the location of the cordless terminal within the coverage area of the radio system
used.
CTM user: A PISN user whose calls are processed by either or both of the CTMI and CTMO ANFs.
fixed part: A physical grouping of some or all of the fixed component parts of mobile radio system. These
would include one or more items of radio equipment attached to an antenna system. It could also include
common control functions and interfaces to the PTNX.
Home Data Base (HDB): See ETS 300 415 [2].
home PINX: The PINX which has direct access to the HDB entry for a particular CTM user.
Private Integrated Services Network (PISN): See ISO/IEC 11579-1 [7] .
Private Integrated Services Network Exchange (PINX): See ISO/IEC 11579-1 [7].
PISN number: See ISO/IEC 11571 [8].
signalling connection: A means of conveying supplementary service requests, independent of a basic
call.
supplementary service: See ITU-T Recommendation I.210 [5].
Visitor Data Base (VDB): See ETS 300 415 [2].
visitor PINX: The PINX which has direct access to the VDB currently associated with a particular CTM
user.
This ETS Refers To The Following Functional Entities (FES) Defined For Basic Call Control (see
ETS 300 171 [1]):
Call Control (CC);
Call Control Agent (CCA).
This ETS refers to the following inter-FE relationships defined for basic call control (see ETS 300 171 [1]):
r1;
r2;
r3.

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This ETS refers to the following service elements defined for basic call control (see ETS 300 171 [1]):
- call history;
- connection type;
- destination number;
- destination subaddress;
- originating category;
- originating number;
- originating subaddress.
3.2 Abbreviations
For the purposes of this ETS the following abbreviations apply:
ANF-xxx "xxx" Additional Network Feature
CC Call Control functional entity
CCA Call Control Agent functional entity
CTM Cordless Terminal Mobility
CTMI CTM Incoming Call Handling
CTMO CTM Outgoing Call Handling
FE Functional Entity
FEA Functional Entity Action
FP Fixed Part
HDB Home Data Base
PINX Private Integrated Services Network Exchange
PISN Private Integrated Services Network
SDL Specification and Description Language
VDB Visitor Data Base
4 ANF-CTMI
4.1 Description
ANF-CTMI enables calls to be directed to a CTM user within the PISN. As there is no predetermined
access for the connection of a CTM user to the PISN, the directing of such calls requires that information
regarding the location of the user is available.
4.2 Derivation of the functional model
4.2.1 Functional model description
The functional model for ANF-CTMI shall be as shown in figure 1.
Home Functions
ra rb
FE1 FE2 FE3
rc
rc
FE4 FE5
Visitor Functions CTM service access
Figure 1: Functional model for ANF-CTMI

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The functional model for ANF-CTMI shall comprise the following Functional Entities (FEs):
FE1: CTM incoming call execution;
FE2: CTM incoming call detection and control;
FE3: Routing information provision;
FE4: Visited location control and execution;
FE5: CTM service access agent.
The following functional relationships shall exist between these FEs:
ra: between FE1 and FE2;
rb: between FE2 and FE3;
rc: between FE1 and FE4 and between FE4 and FE5.
4.2.2 Description of functional entities
4.2.2.1 CTM incoming call execution, FE1
On request from FE2, this FE directs an incoming call to the CTM user by initiating a new call
establishment towards the CTM user's location and passing the CTM user's identity.
4.2.2.2 CTM incoming call detection and control, FE2
This FE detects an incoming call to a CTM user and requests FE1 to redirect the call to the CTM user's
location on the basis of information obtained from FE3.
4.2.2.3 Routing information provision, FE3
This FE provides details of the CTM user's location within the PISN to FE2 on request.
4.2.2.4 Visited location control and execution, FE4
This FE detects the incoming call and directs it to the CTM user's indicated PISN access.
4.2.2.5 CTM service access agent, FE5
This FE extends the incoming call to the appropriate CTM user using the identity provided by FE4.
4.2.3 Relationship with a basic service
An example of the relationship between the functional model and a basic service is shown in figure 2. This
example is used as the basis for the information flow sequence diagrams in subclause 4.3.1.
Hom e functions
rb
ra
FE1 FE2 FE3
r1 r2
CC CC
CCA
C allin g
rc
user
r2 rc
FE4 FE5
r3
CC
CCA
Visitor functions CTM service access
Figure 2: Functional entity model relationship

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4.3 Information flows
4.3.1 Information flow sequences
A stage 3 standard shall be capable of providing the information flows shown in figures 3 to 7. It can
specify further information flows, e.g. to deal with additional exceptional conditions.
ANF-CTMI information flows are shown as solid arrows and basic call information flows are represented
by broken arrows. An ellipse embracing two information flows indicates that these flows occur together.
Within a column representing an ANF-CTMI functional entity, the numbers refer to functional entity actions
listed in subclause 4.5.
The information flow sequence for successful CTMI operation is shown
...