SIST EN 300 899-1:2000

SLOVENSKI STANDARD
01-april-2000
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Integrated Services Digital Network (ISDN); Signalling System No.7; Interworking
between ISDN User Part (ISUP) version 2 and Digital Subscriber Signalling System No.
one (DSS1); Part 1: Protocol specification [ITU-T Recommendation Q.699, modified]
Ta slovenski standard je istoveten z: EN 300 899-1 Version 1.1.2
ICS:
33.080 Digitalno omrežje z Integrated Services Digital
integriranimi storitvami Network (ISDN)
(ISDN)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 300 899-1 V1.1.2 (1998-09)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Signalling System No.7;
Interworking between ISDN User Part (ISUP) version 2 and
Digital Subscriber Signalling System No. one (DSS1);
Part 1: Protocol specification
[ITU-T Recommendation Q.699, modified]
European Telecommunications Standards Institute

2 EN 300 899-1 V1.1.2 (1998-09)
Reference
DEN/SPS-01016 (8bo90idc.PDF)
Keywords
ISDN, SS7, ISUP, DSS1, interworking
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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 1998.
All rights reserved.
3 EN 300 899-1 V1.1.2 (1998-09)
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 free of charge from the ETSI Secretariat. Latest updates are available on the
ETSI Web server (http://www.etsi.fr/ipr or 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 ETSI Technical Committee Signalling
Protocols and Switching (SPS).
The present document is part 1 of a multi-part standard covering the interworking between Integrated Services Digital
Network (ISDN) User Part (ISUP) version 2 of Signalling System No.7 and Digital Subscriber Signalling System
No. one (DSS1), as described below:
Part 1: "Protocol specification [ITU-T Recommendation Q.699 Modified]";
Part 2: "Protocol Implementation Conformance Statement (PICS) proforma specification";
Part 3: "Test Suite Structure and Test Purposes (TSS&TP) specification";
Part 4: "Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification.
National transposition dates
Date of adoption of this EN: 6 March 1998
Date of latest announcement of this EN (doa): 31 December 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 30 June 1999
Date of withdrawal of any conflicting National Standard (dow): 30 June 1999
Endorsement notice
The text of ITU-T Recommendation Q.699 was approved by ETSI as an EN with agreed modifications as given below.
NOTE 1: New or modified text is indicated using sidebars. In addition, underlining and/or strike-out are used to
highlight detailed modifications where necessary.
NOTE 2: ITU-T Recommendation Q.699 was not yet published by ITU-T at the time of adoption of the present
document. Publication by ETSI was delayed until ITU-T Q.699 became available.

4 EN 300 899-1 V1.1.2 (1998-09)
subclause 1.1
Replace subclause 1.1 by:
1.1 Scope
This first part of ETS 300 899 specifies the interworking between Signalling System No.7 ISDN User Part (ISUP)
version 2 as specified in [19] to [36] and Digital Subscriber Signalling System No. one (DSS1) as specified in [1] to
[18] and [37] to [39].
The interworking between subsequent versions of the ISUP signalling protocol (ISUP version 3, etc.) and the DSS1
protocol shall be in accordance with the requirements as contained in this ETS unless explicitly specified otherwise in
subsequent versions of the ISUP signalling protocol. This also applies to new services specified in the DSS1 signalling
protocol (e.g. the Selective Call Forwarding services) that make use of the existing procedures in the ISUP protocol
The interworking between the above signalling protocols occurs in an exchange with ISDN local exchange functionality
and is specified in the context of a typical call in a pure ISDN or mixed ISDN/non-ISDN environment.
In case of contradictions between the mapping described in the present document and the requirements specified in the
corresponding ISUP and DSS1 standards, the procedures in the ISUP and DSS1 standards apply.
subclause 1.2
Replace subclause 1.2 by:
1.2 Normative references
References may be made to:
a) specific versions of publications (identified by date of publication, edition number, version number, etc.), in
which case, subsequent revisions to the referenced document do not apply; or
b) all versions up to and including the identified version (identified by "up to and including" before the version
identity); or
c) all versions subsequent to and including the identified version (identified by "onwards" following the version
identity); or
d) publications without mention of a specific version, in which case 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.
[1] ETS 300 052-1: "Integrated Services Digital Network (ISDN); Multiple Subscriber Number
(MSN) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[2] ETS 300 055-1: "Integrated Services Digital Network (ISDN); Terminal Portability (TP)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[3] ETS 300 058-1: "Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary
service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol
specification".
[4] ETS 300 061-1: "Integrated Services Digital Network (ISDN); Subaddressing (SUB)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
5 EN 300 899-1 V1.1.2 (1998-09)
[5] ETS 300 064-1: "Integrated Services Digital Network (ISDN); Direct Dialling In (DDI)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[6] ETS 300 092-1: "Integrated Services Digital Network (ISDN); Calling Line Identification
Presentation (CLIP) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[7] ETS 300 093-1: "Integrated Services Digital Network (ISDN); Calling Line Identification
Restriction (CLIR) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[8] ETS 300 097-1: "Integrated Services Digital Network (ISDN); Connected Line Identification
Presentation (COLP) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[9] ETS 300 098-1: "Integrated Services Digital Network (ISDN); Connected Line Identification
Restriction (COLR) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[10] ETS 300 130-1: "Integrated Services Digital Network (ISDN); Malicious Call Identification
(MCID) supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[11] ETS 300 138-1: "Integrated Services Digital Network (ISDN); Closed User Group (CUG)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[12] ETS 300 141-1: "Integrated Services Digital Network (ISDN); Call Hold (HOLD) supplementary
service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol
specification".
[13] ETS 300 185-1: "Integrated Services Digital Network (ISDN); Conference call, add-on (CONF)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[14] ETS 300 188-1: "Integrated Services Digital Network (ISDN); Three-Party (3PTY) supplementary
service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol
specification".
[15] ETS 300 196-1: "Integrated Services Digital Network (ISDN); Generic functional protocol for the
support of supplementary services; Digital Subscriber Signalling System No. one (DSS1) protocol;
Part 1: Protocol specification".
[16] ETS 300 207-1: "Integrated Services Digital Network (ISDN); Diversion supplementary services;
Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol specification".
[17] ETS 300 210-1: "Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary
service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1: Protocol
specification".
[18] ETS 300 286-1: "Integrated Services Digital Network (ISDN); User-to-User Signalling (UUS)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[19] ETS 300 356-1 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 1: Basic services [ITU-T
Recommendations Q.761 to Q.764 (1993), modified]".
[20] ETS 300 356-2 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 2: ISDN supplementary
services [ITU-T Recommendation Q.730 (1993), modified]".

6 EN 300 899-1 V1.1.2 (1998-09)
[21] ETS 300 356-3 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 3: Calling Line Identification
Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993),
modified]".
[22] ETS 300 356-4 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 4: Calling Line Identification
Restriction (CLIR) supplementary service [ITU-T Recommendation Q.731, clause 4 (1993),
modified]".
[23] ETS 300 356-5 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 5: Connected Line
Identification Presentation (COLP) supplementary service [ITU-T Recommendation Q.731,
clause 5 (1993), modified]".
[24] ETS 300 356-6 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 6: Connected Line
Identification Restriction (COLR) supplementary service [ITU-T Recommendation Q.731,
clause 6 (1993), modified]".
[25] ETS 300 356-7 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 7: Terminal Portability (TP)
supplementary service [ITU-T Recommendation Q.733, clause 4 (1993), modified]".
[26] ETS 300 356-8 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 8: User-to-User Signalling
(UUS) supplementary service [ITU-T Recommendation Q.737, clause 1 (1993), modified]".
[27] ETS 300 356-9 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 9: Closed User Group (CUG)
supplementary service [ITU-T Recommendation Q.735, clause 1 (1993), modified]".
[28] ETS 300 356-10 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 10: Subaddressing (SUB)
supplementary service [CCITT Recommendation Q.731, section 8 (1992), modified]".
[29] ETS 300 356-11 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 11: Malicious Call
Identification (MCID) supplementary service".
[30] ETS 300 356-12 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 12: Conference call, add-on
(CONF) supplementary service [ITU-T Recommendation Q.734, clause 1 (1993), modified]".
[31] ETS 300 356-14 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 14: Explicit Call Transfer
(ECT) supplementary service".
[32] ETS 300 356-15 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 15: Diversion supplementary
services [ITU-T Recommendation Q.732, clauses 2 to 5 (1993), modified]".
[33] ETS 300 356-16 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 16: Call Hold (HOLD)
supplementary service [ITU-T Recommendation Q.733, clause 2 (1993), modified]".
[34] ETS 300 356-17 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 17: Call Waiting (CW)
supplementary service [CCITT Recommendation Q.733, section 1 (1992), modified]".
[35] ETS 300 356-18 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 18: Completion of Calls to
Busy Subscriber (CCBS) supplementary service".

7 EN 300 899-1 V1.1.2 (1998-09)
[36] ETS 300 356-19 (1995): "Integrated Services Digital Network (ISDN); Signalling System No.7;
ISDN User Part (ISUP) version 2 for the international interface; Part 19: Three party (3PTY)
supplementary service [ITU-T Recommendation Q.734, clause 2 (1993), modified]".
[37] ETS 300 359-1: "Integrated Services Digital Network (ISDN); Completion of Calls to Busy
Subscriber (CCBS) supplementary service; Digital Subscriber Signalling System No. one (DSS1)
protocol; Part 1: Protocol specification".
[38] ETS 300 369-1: "Integrated Services Digital Network (ISDN); Explicit Call Transfer (ECT)
supplementary service; Digital Subscriber Signalling System No. one (DSS1) protocol; Part 1:
Protocol specification".
[39] ETS 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling
System No. one (DSS1); Signalling network layer for circuit-mode basic call control; Part 1:
Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
[40] ETS 300 485: "Integrated Services Digital Network (ISDN); Definition and usage of cause and
location in Digital Subscriber Signalling System No. one (DSS1) and Signalling System No.7
ISDN User Part (ISUP) [ITU-T Recommendation Q.850 (1993), modified]".
subclause 1.4
Add the following abbreviations to subclause 1.4 as appropriate:
CCBS Completion of Calls to Busy Subscriber
ECT Explicit Call Transfer
MCID Malicious Call Identification
FPH Freephone
8 EN 300 899-1 V1.1.2 (1998-09)
Throughout the text of ITU-T Recommendation Q.699
Replace references as shown below.
Reference in ITU-T Modified reference
Recommendation Q.699
ITU-T Recommendation Q.731.3 ITU-T Recommendation Q.731.3 as modified by ETS 300 356-3 [21]
ITU-T Recommendation Q.731.4 ITU-T Recommendation Q.731.4 as modified by ETS 300 356-4 [22]
ITU-T Recommendation Q.731.5 ITU-T Recommendation Q.731.5 as modified by ETS 300 356-5 [23]
ITU-T Recommendation Q.731.6 ITU-T Recommendation Q.731.6 as modified by ETS 300 356-6 [24]
ITU-T Recommendation Q.732.2 ITU-T Recommendation Q.732.2 as modified by ETS 300 356-15 [32]
ITU-T Recommendation Q.732.3 ITU-T Recommendation Q.732.3 as modified by ETS 300 356-15 [32]
ITU-T Recommendation Q.732.4 ITU-T Recommendation Q.732.4 as modified by ETS 300 356-15 [32]
ITU-T Recommendation Q.732.5 ITU-T Recommendation Q.732.5 as modified by ETS 300 356-15 [32]
ITU-T Recommendation Q.733.2 ITU-T Recommendation Q.733.2 as modified by ETS 300 356-16 [33]
ITU-T Recommendation Q.733.4 ITU-T Recommendation Q.733.4 as modified by ETS 300 356-7 [25]
ITU-T Recommendation Q.734.1 ITU-T Recommendation Q.734.1 as modified by ETS 300 356-12 [30]
ITU-T Recommendation Q.734.2 ITU-T Recommendation Q.734.2 as modified by ETS 300 356-19 [36]
ITU-T Recommendation Q.735.1 ITU-T Recommendation Q.735.1 as modified by ETS 300 356-9 [27]
ITU-T Recommendation Q.737.1 ITU-T Recommendation Q.737.1 as modified by ETS 300 356-8 [26]
ITU-T Recommendation Q.761 ITU-T Recommendation Q.761 as modified by ETS 300 356-1 [19]
ITU-T Recommendation Q.762 ITU-T Recommendation Q.762 as modified by ETS 300 356-1 [19]
ITU-T Recommendation Q.763 ITU-T Recommendation Q.763 as modified by ETS 300 356-1 [19]
ITU-T Recommendation Q.764 ITU-T Recommendation Q.764 as modified by ETS 300 356-1 [19]
ITU-T Recommendation Q.850 ITU-T Recommendation Q.850 as modified by ETS 300 485 [40]
ITU-T Recommendation Q.931 ITU-T Recommendation Q.931 as modified by ETS 300 403-1 [39]
ITU-T Recommendation Q.932 ETS 300 196-1 [15]
ITU-T Recommendation Q.951.1 ETS 300 092-1 [6]
ITU-T Recommendation Q.951.2 ETS 300 093-1 [7]
ITU-T Recommendation Q.951.3 ETS 300 097-1 [8]
ITU-T Recommendation Q.951.4 ETS 300 098-1 [9]
ITU-T Recommendation Q.952 ETS 300 207-1 [16]
ITU-T Recommendation Q.953.2 ETS 300 141-1 [12]
ITU-T Recommendation Q.954.1 ETS 300 185-1 [13]
ITU-T Recommendation Q.954.2 ETS 300 188-1 [14]
ITU-T Recommendation Q.957 ETS 300 286-1 [18]
subclause 2.1.1.1, table 1/Q.699
Replace table 1/Q.699 by:
SETUPfiIAMfi
Bearer capability information element Transmission medium
Information transfer capability Information transfer rate requirement parameter
Speech (NOTE) Speech
3,1 kHz audio (NOTE) 3,1 kHz audio
64 kbit/s unrestricted 64 kbit/s unrestricted
unrestricted digital information multirate: 2 × 64 kbit/s 2 × 64 kbit/s
unrestricted digital information multirate: 6 × 64 kbit/s 384 kbit/s
with tones/announcements multirate: 24 × 64 kbit/s 1 536 kbit/s
multirate: 30 × 64 kbit/s 1 920 kbit/s
NOTE - A grey coloured cell means that the value is not significant.

9 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.1.1, Called party number, note
Delete the note.
subclause 2.1.1.1, MLPP precedence
Delete the item about MLPP precedence.
subclause 2.1.2.5
Insert the following note at the beginning of subclause 2.1.2.5:
NOTE: Depending on national regulations, some networks may define categories of subscribers that have the
ability to override the presentation restriction and have the connected party's ISDN number, and
subaddress information (if any) presented (e.g. the police). The ability to override the presentation
restriction and the protocol to support such a service is a national matter.
subclause 2.1.2.5, table 27/Q.699, sixth row and note 1
Delete note 1 and modify the sixth row as follows:
connected number i.e.
option 1:
Type of number  as received
Numbering plan  as received
Presentation ind. presentation
restricted
Screening ind.   as received
presentation restricted
Number digits   no digit
(NOTE 2)
(NOTE 1)
option 2:
Type of number unknown
Numbering plan unknown
Presentation ind. presentation
restricted
Screening ind. network provided
Number digits no digit
subclause 2.1.2.5, table 30/Q.699, note
Delete the note and all references to it.
subclause 2.1.2.12.1, table 41/Q.699, last row
Modify the last row as follows:
100 1011
No message sent
Conference floating
10 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.12.2, table 42/Q.699, last three rows
Modify the third row from the bottom ("Terminate the conference") as follows:
Terminate the
DISCONNECT REL
conference
Delete the two last rows ("Disconnect the served user" and "Call clearing by served user").
subclause 2.1.2.12.3, table 44/Q.699, last row
Delete the last row (receipt of the notification Conference floating in a NOTIFY message).
subclause 2.1.2.14, table 49/Q.699, note
Modify the note as follows:
NOTE: The above table provides examples of mapping. Another example of mapping is described in ETS
300 138-1 [11], annex C.
subclause 2.1.2.15.1, table 50/Q.699, note 1
Modify note 1 as follows:
NOTE 1: If there is no User-user information element in the SETUP message, the exchange should shall discard the
user to user information possibly received afterwards from the access or from the ISUP side.“
subclause 2.1.2.15.2, table 54/Q.699
Replace table 54/Q.699 by:
DSS1 messages ISUP messages
‹DISCONNECT‹REL
Cause information element Cause parameter
Value as received Value 69 (requested facility not implemented) or
29 (facility rejected)
Facility information element
Diagnostic UUI indicators parameter's name
UserUserService return error component
rejectedByUser
‹DISCONNECT (NOTE)‹ANM, CON, or REL prior active phase
Cause information element No rejection or acceptance indication is received
in the ANM, CON or REL message
Value 69 (requested facility not implemented)
Facility information element and
UserUserService return error component
No rejection or acceptance indication has already been
rejectedByUser received in a previous backward message (ACM or CPG)
NOTE - In case of receipt of an answer message (ANM) or a connect message (CON), a release message (REL)
with the cause value No. 31 (normal unspecified) is sent to the remote exchange.

11 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.15.3, table 59/Q.699
Replace table 59/Q.699 by:
DSS1 messages ISUP messages
‹DISCONNECT‹REL
Cause information element Cause parameter
Value as received Value 69 (requested facility not implemented) or
29 (facility rejected)
Facility information element
Diagnostic UUI indicators parameter's name
UserUserService return error component
rejectedByUser
‹DISCONNECT‹REL
Cause information element
Cause parameter
Value 69 (requested facility not implemented)
Value 88 (incompatible destination)
Facility information element
Diagnostic UUI indicators parameter's name
UserUserService return error component
rejectedByUser
‹DISCONNECT (NOTE)‹ACM, CPG with an alerting indication
or REL prior active phase
Cause information element No rejection or acceptance indication is received
in the ACM, CPG or REL message
Value 69 (requested facility not implemented)
Facility information element and
UserUserService return error component
No rejection or acceptance indication has already been
rejectedByUser received in a previous backward message (ACM or CPG)
NOTE - In case of receipt of an address complete message (ACM) or a call progress message (CPG), a release
message (REL) with the cause value No. 31 (normal unspecified) is sent to the remote exchange.

12 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.15.4, table 68/Q.699
Replace table 68/Q.699 by:
DSS1 messages ISUP messages
‹DISCONNECT‹REL
Cause information element Cause parameter
Value as received Value 69 (requested facility not implemented) or
29 (facility rejected)
Facility information element
Diagnostic UUI indicators parameter's name
UserUserService return error component
rejectedByUser
‹DISCONNECT (NOTE)‹ANM or CON
Cause information element No rejection or acceptance indication is received
in the ANM or CON message
Value 69 (requested facility not implemented)
Facility information element and
UserUserService return error component
No rejection or acceptance indication has already been
rejectedByNetwork received in a previous backward message (ACM or CPG)
‹DISCONNECT (NOTE)‹REL prior active phase
Cause information element No rejection or acceptance indication is received
in the REL message
as received
and
No rejection or acceptance indication has already been
received in a previous backward message (ACM or CPG)
NOTE - In case of receipt of an answer message (ANM) or a connect message (CON), a release message (REL)
with the cause value No. 31 (normal unspecified) is sent to the remote exchange.

13 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.15.4, table 69/Q.699
Replace table 69/Q.699 by:
DSS1 messages ISUP messages
‹CONNECT, DISCONNECT (NOTE 1)‹ANM, CON or REL prior active phase
Facility information element User to user indicators parameter
UserUserService return error component Type response
Service 1 not provided
rejectedByUser (NOTE 2)
‹CONNECT, DISCONNECT (NOTE 1)‹ANM, CON
Facility information element No rejection or acceptance indication is received
in the ANM or CON message
UserUserService return error component
rejectedByNetwork and
No rejection or acceptance indication has already been
received in a previous backward message (ACM or CPG)
‹DISCONNECT (NOTE 1)‹REL prior active phase
Cause information element No rejection or acceptance indication is received
in the REL message
as received
and
No rejection or acceptance indication has already been
received in a previous backward message (ACM or CPG)
NOTE 1 - The correspondence between the ISUP message received and the DSS1 message sent to the calling
user is described in § 2.1.1. Basic call.
NOTE 2 - Since it is not possible to know if the rejection is due to the network or to the remote user, the default
value RejectedByUser is used.
14 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.15.4, table 71/Q.699
Modify table 71/Q.699 as follows:
DSS1 messages ISUP messages
FACILITYfiFRJ (NOTE 1)fi
User to user indicators parameter
Facility information element
Type response
UserUserService return error component Service 1 no information
Service 2 no information
rejectedByUser, or
Service 3 not provided
rejectedByNetwork (NOTE 3)
Cause parameter
Value 29 (facility rejected)
69 (requested facility not
implemented)
FRJ (NOTE 1)fi
User to user indicators parameter
Type response
Service 1 no information
T1 expiry (NOTE 2)
Service 2 no information
Service 3 not provided
Cause parameter
Value 69 (requested facility not
implemented)
NOTE 1 - FRJ: Facility reject message.
NOTE 2 - T1 start and normal stop are described in ETS 300 286-1 [18]
subclause 1.5.2.3/Q.957 [19].
NOTE 3 - The receipt of the error value RejectedByNetwork is only applicable
at the T reference point.
15 EN 300 899-1 V1.1.2 (1998-09)
subclause 2.1.2.15, end
Add the following new subclause:
2.1.2.16 Malicious Call Identification (MCID)
There is no interworking requirement relating to the Malicious Call Identification (MCID) supplementary service.
2.1.2.17 Completion of Call to Busy Subscriber (CCBS)
Conditions for the transfer of CCBS information are described in ETS 300 359-1 [37] and are supposed to be satisfied
hereafter.
NOTE: This subclause does not cover all interworking aspects of the service between UNI and NNI protocols. It
is limited to the mapping of information between DSS1 and ISUP.
2.1.2.17.1 Coincident S and T reference point
- Receipt from the network of a CCBS available indication:
‹DISCONNECT‹REL
Cause information element Cause parameter
Cause value Cause value
17 (user busy), or 17 (user busy), or
34 (no circuit/channel available) 34 (no circuit/channel available)
Diagnostic
Facility information element
CCBS possible
CallInfoRetain invoke component
- Table 1/CCBS -
Receipt of a CCBS available indication
- CCBS call establishment:
SETUPfiIAMfi
Facility information element Forward call indicators parameter
CCBSCall invoke component ISDN user part preference indicator
ISDN user part required all the way
CCBS parameter
CCBS call indicator
CCBS call
- Table 2/CCBS -
CCBS call establishment
16 EN 300 899-1 V1.1.2 (1998-09)
- Receipt of a REL message for the CCBS call:
‹Message sent to the access‹Message received from the network
CCBS request retention option supported:
‹DISCONNECT‹REL
Cause information element
Cause parameter
Cause value
17 or 34 as received Cause value
17 (user busy), or
CCBS request retention option not supported:
34 (no circuit/channel available)
‹DISCONNECT
Cause information element
Diagnostic
Cause value CCBS possible
17 or 34 as received
Facility information element (NOTE 1)
CallInfoRetain invoke component
‹REL
‹DISCONNECT Cause parameter
Cause value
Cause information element
17 (user busy), or
Cause value
34 (no circuit/channel available)
17 or 34 as received
No Diagnostic, or
Diagnostic
CCBS not possible
‹DISCONNECT
Cause information element
‹REL
Cause value
as received
Cause parameter
‹FACILITY (NOTE 2) other coding than above
Facility information element
CCBSErase invoke component
eraseReason: basic-call-failed
NOTE 1 - The Facility information element with the CallInfoRetain invoke component is not sent
if the conditions to activate the service are not satisfied (see ETS 300 359-1 [37]
subclause 9.1.1).
NOTE 2 - The FACILITY message is sent using a bearer-independent transport mechanism (see
ETS 300 359-1 [37] subclause 9.4.4.1)
- Table 3/CCBS -
Receipt of a call failure indication

17 EN 300 899-1 V1.1.2 (1998-09)
2.1.2.17.2 T reference point
- Receipt from the network of a CCBS available indication:
‹DISCONNECT‹REL
Cause information element Cause parameter
Cause value Cause value
17 (user busy), or 17 (user busy), or
34 (no circuit/channel available) 34 (no circuit/channel available)
Diagnostic
Facility information element
CCBS possible
CCBS-T-Available invoke component
- Table 4/CCBS -
Receipt of a CCBS available indication
- CCBS call establishment:
SETUPfiIAMfi
Facility information element Forward call indicators parameter
CCBS-T-Call invoke component ISDN user part preference indicator
ISDN user part required all the way
CCBS parameter
CCBS call indicator
CCBS call
- Table 5/CCBS -
CCBS call establishment
18 EN 300 899-1 V1.1.2 (1998-09)
2.1.2.18 Explicit Call Transfer (ECT)
For this service, the separation "outgoing call" and "incoming call" does not apply.
This subclause describes the interworking at the originating local exchange (i.e. the exchange where the served user is
connected to).
The terminology used in this subclause is defined in ETS 300 356-14 [31] and ETS 300 369-1 [38].
2.1.2.18.1 Coincident S and T reference point
2.1.2.18.1.1 Loop prevention procedure
Message sent to the access Message received from the network
‹FACILITY‹LOOP PREVENTION (response)
- Call Transfer Reference
Facility information element Response indicator:
EctExecute return result component Call A-B with no loop exists
or and
ExplicitEctExecute return result component Call A-C with:
insufficient information or
no loop exists or
simultaneous transfer
or
Call A-C with no loop exists
and
Call A-B with:
insufficient information or
no loop exists or
simultaneous transfer
‹FACILITY‹LOOP PREVENTION (response)
- Call Transfer Reference
Facility information element
Response indicator:
EctExecute return error component
Call A-B with:
notAvailable
insufficient information or
or
simultaneous transfer
ExplicitEctExecute return error component
and
notAvailable
Call A-C with:
insufficient information or
simultaneous transfer
or
Call A-C with:
insufficient information or
simultaneous transfer
and
Call A-B with:
insufficient information or
simultaneous transfer
Table 1/ECT
Loop prevention procedure
19 EN 300 899-1 V1.1.2 (1998-09)
2.1.2.18.1.2 Service invocation
- Case 1: Both calls A-B and A-C are in active phase:
Message received Message sent to the remote user B Message sent to the remote user C
from the served user (user A) Call A-B in active phase Call A-C in active phase
FACILITYfiFAC (NOTE)fiFAC (NOTE)fi
Facility information element Service activation Service activation
EctExecute invoke component call transfer call transfer
or
Generic notification indicator Generic notification indicator
ExplicitEctExecute invoke
call transfer, active call transfer, active
component
NOTE - The Facility message (FAC) sent to the remote users B and C may contain the call transfer
number parameter as well: see ETS 300 356-14 [31] subclause 9.2.1.
- Table 2/ECT -
ECT invocation
- Case 2: Call A-B is in active phase and call A-C is in alerting phase:
Message received Message sent to the remote user B Message sent to the remote user C
from the served user (user A) Call A-B in active phase Call A-C in alerting phase
FACILITYfiFACfiCPG (NOTE)fi
Facility information element Service activation Generic notification indicator
EctExecute invoke component call transfer call transfer, active
or
Generic notification indicator
ExplicitEctExecute invoke
call transfer, alerting
component
NOTE - The Call Progress message (CPG) sent to the remote user C may contain the call transfer
number parameter as well: see ETS 300 356-14 [31] subclause 9.2.1.
- Table 3/ECT -
ECT invocation
2.1.2.18.2. T reference point
2.1.2.18.2.1. Loop prevention procedure
- Invocation of the loop prevention procedure by the private network:
Message received from the access Message sent in the network
FACILITYfiLOOP PREVENTION (request)fi
Facility information element
EctLoopTest invoke component
Call Transfer Reference
CallTransferIdentity
- Table 4/ECT -
Invocation of the loop prevention procedure by the private network

20 EN 300 899-1 V1.1.2 (1998-09)
- Response of a loop prevention procedure invocation by the public network:
Message sent to the access Message received from the network
‹FACILITY‹LOOP PREVENTION (response)
- Call Transfer Reference
Facility information element Response indicator:
EctLoopTest return result component
insufficientInformation or insufficient information or
noLoopExists or no loop exists or
simultaneousTransfer simultaneous transfer
- Table 5/ECT -
Response of a loop prevention procedure invocation by the public network

21 EN 300 899-1 V1.1.2 (1998-09)
2.1.2.18.2.2. Service invocation
- Receipt of a notification from the access:
Message received from the access Message sent in the network
- Call in alerting phase:
CPGfi
Event information parameter
Progress
FACILITYfi
Generic notification indicator parameter
Facility information element
Call transfer, alerting
EctInform invoke component
- Call in active phase:
alerting
FACfi
Service activation parameter
Call transfer
Generic notification indicator parameter
Call transfer, alerting
- Call in alerting phase:
CPGfi
Event information parameter
Progress
Generic notification indicator parameter
Call transfer, active
FACILITYfi
Call transfer number parameter (NOTE 1)
Facility information element
Access transport parameter (NOTE 2)
EctInform invoke component
active Facility information element
redirectionNumber (NOTE 1) SubaddressTransfer invoke component
Facility information element (NOTE 2)
- Call in active phase:
SubaddressTransfer invoke
FACfi
component
Service activation parameter
Call transfer
Generic notification indicator parameter
Call transfer, active
Call transfer number parameter (NOTE 1)
Access transport parameter (NOTE 2)
Facility information element
SubaddressTransfer invoke component
NOTE 1 - The Call transfer number parameter is not sent if the EctInform invoke
component does not contain the redirectionNumber parameter.
NOTE 2 - The Access transport parameter is not sent if the SubaddressTransfer invoke
component is not received.
- Table 6/ECT -
Receipt of a notification from the access

22 EN 300 899-1 V1.1.2 (1998-09)
- Receipt of the remote user's subaddress from the network:
‹FACILITY‹FAC
Service activation parameter
Call transfer
Facility information element
Access transport parameter
SubaddressTransfer invoke component
Facility information element
SubaddressTransfer invoke component
- Table 7/ECT -
Receipt of the remote user's subaddress from the network
- Receipt of the remote user's subaddress from the access:
FACILITYfiFACfi
Service activation parameter
Call transfer
Facility information element
Access transport parameter
SubaddressTransfer invoke component
Facility information element
SubaddressTransfer invoke component
- Table 8/ECT -
Receipt of the remote user's subaddress from the access
subclause 2.2
Delete subclause 2.2. It is outside the scope of this ETS.
subclause 3.1.1.3, OPTIONAL PARAMETERS, Optional backward call indicators, bit D
Delete bit D (MLPP user indicator).
subclause 3.1.2.3
Insert the following note at the beginning of subclause 3.1.2.3:
NOTE: Depending on national regulations, some networks may define categories of subscribers that have the
ability to override the presentation restriction and have the calling party's ISDN number, and subaddress
information (if any) presented (e.g. the police). The ability to override the presentation restriction and the
protocol to support such a service is a national matter.

23 EN 300 899-1 V1.1.2 (1998-09)
subclause 3.1.2.3, table 92/Q.699, sixth row, notes 1 and 2
Delete note 2 and modify the sixth row as follows:
calling party number i.e.
option 1:
Type of number  as received
Numbering plan  as received
Presentation ind. presentation
restricted
Screening ind.   as received
presentation restricted Number digits   no digit
NOTE 3
(NOTE 2)
option 2:
Type of number unknown
Numbering plan unknown
Presentation ind. presentation
restricted
Screening ind. network provided
Number digits no digit
Modify note 1 as follows:
NOTE 1: If the two calling party number delivery option does not apply:
only one Calling party number information element is sent on DSS1 side. If the generic number is
used, see table 94/Q.699.
If the two calling party number delivery option applies:
two Calling party number information elements are sent on DSS1 side: the first one coded according to
the generic number parameter (see table 94/Q.699), the second one according to the calling party
number parameter (see table 93/Q.699). The order in which the Calling party number information
elements appear in the SETUP message is a network option.
subclause 3.1.2.5.2, table 97/Q.699, eleventh row, third column
Modify eleventh row, third column as follows:
Connected number parameter subscriber nbr
Number 001 As received 01 ISDN/telephony Correct
provided by the ISDN numbering 000 0011 user provided, numbering plan
complete
user plan national nbr, verified and national nbr
number
or passed
or or
000 0100
international nbr
No generic number parameter international unknown
indicating additional connected number is sent number
subclause 3.1.2.3, table 95/Q.699, note
Delete the note and all references to it.

24 EN 300 899-1 V1.1.2 (1998-09)
subclause 3.1.2.8.2
Replace "For further study" by the following text:
IAMfiSETUPfi
Redirection information parameter Content
Redirection counter = 1
Redirecting number information element
(see table 2/CD)
1st Redirecting number information element
(see table 2/CD)
Redirection counter > 1
2nd Redirecting number information element
(see table 3/CD)
- Table 1/CD -
Redirecting number information element sent to the called user
Original called number parameter Redirecting number
Address presentation restricted indicator information element
Type of number (NOTES 1, 5)
Numbering plan identification (NOTES 2, 5)
presentation allowed Presentation indicator: presentation allowed
Reason of diversion: (NOTE 3)
Number digits: (NOTES 4, 5)
Type of number: unknown
Numbering plan identification: unknown
presentation restricted Presentation indicator: presentation restricted
Reason of diversion: (NOTE 3)
No Number digits
Type of number: unknown
address not available Numbering plan identification: unknown
or Presentation indicator: number not available
due to interworking
No Original called number parameter
Reason of diversion: (NOTE 3)
No Number digits
NOTE 1 - National or international as received in the Nature of address indicator of the
Original called number parameter.
NOTE 2 - ISDN numbering plan as received in the Numbering plan indicator of the
Original called number parameter.
NOTE 3 - If the redirection counter is set to 1:
as received in the Redirecting reason indicator of the Redirection
information parameter.
If the redirection counter is greater than 1:
unknown.
NOTE 4 - According to the Address signals of the Original called number parameter.
NOTE 5 - As a network provider option the prefix is added to the number. In this case the
Numbering plan identification and the Type of number are coded unknown.
- Table 2/CD -
Coding of the first Redirecting number information element

25 EN 300 899-1 V1.1.2 (1998-09)
Redirecting number parameter Redirecting number
Address presentation restricted indicator information element
Type of number (NOTES 1, 5)
Numbering plan identification (NOTES 2, 5)
presentation allowed Presentation indicator: presentation allowed
Reason of diversion: (NOTE 3)
Number digits: (NOTES 4, 5)
Type of number: unknown
Numbering plan identification: unknown
presentation restricted Presentation indicator: presentation restricted
Reason of diversion: (NOTE 3)
No Number digits
Type of number: unknown
address not available Numbering plan identification: unknown
or Presentation indicator: number not available
due to interworking
No Redirecting number parameter
Reason of diversion: (NOTE 3)
No Number digits
NOTE 1 - National or international as received in the Nature of address indicator of the
Redirecting number parameter.
NOTE 2 - ISDN numbering plan as received in the Numbering plan indicator of the
Redirecting number parameter.
NOTE 3 - As received in the Redirecting reason indicator of the Redirecting number
parameter.
NOTE 4 - According to the Address signals of the Redirecting number parameter.
NOTE 5 - As a network provider option the prefix is added to the number. In this case the
Numbering plan identification and the Type of number are coded unknown.
- Table 3/CD -
Coding of the second Redirecting number information element (if any)

26 EN 300 899-1 V1.1.2 (1998-09)
subclause 3.1.2.12.1, table 107/Q.699, last row
M
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