EN 300 356-15 V3.2.2 (1998-08)
European Standard (Telecommunications series)
Integrated Services Digital Network (ISDN);
Signalling System No.7;
ISDN User Part (ISUP) version 3 for the international interface;
Part 15: Diversion supplementary services
[ITU-T Recommendation Q.732, clauses 2 to 5 (1996), modified]
2
EN 300 356-15 V3.2.2 (1998-08)
Reference
REN/SPS-01039-15 (3arr1ipc.PDF)
Keywords
ISDN, ISUP, SS7, supplementary service,
CF
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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.
ETSI
3
EN 300 356-15 V3.2.2 (1998-08)
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 15 of a multi-part EN covering the ISDN User Part (ISUP) version 3 for the international
interface, as identified below:
Part 1:
Part 2:
Part 3:
Part 4:
Part 5:
Part 6:
Part 7:
Part 8:
Part 9:
Part 10:
Part 11:
Part 12:
Part 14:
Part 15:
Part 16:
Part 17:
Part 18:
Part 19:
Part 20:
Part 31:
Part 32:
Part 33:
Part 34:
Part 35:
Part 36:
NOTE:
"Basic services";
"ISDN supplementary services";
"Calling Line Identification Presentation (CLIP) supplementary service";
"Calling Line Identification Restriction (CLIR) supplementary service";
"Connected Line Identification Presentation (COLP) supplementary service";
"Connected Line Identification Restriction (COLR) supplementary service";
"Terminal Portability (TP) supplementary service";
"User-to-User Signalling (UUS) supplementary service";
"Closed User Group (CUG) supplementary service";
"Subaddressing (SUB) supplementary service";
"Malicious Call Identification (MCID) supplementary service";
"Conference Call, add-on (CONF) supplementary service";
"Explicit Call Transfer (ECT) supplementary service";
"Diversion supplementary services";
"Call Hold (HOLD) supplementary service";
"Call Waiting (CW) supplementary service";
"Completion of Calls to Busy Subscriber (CCBS) supplementary service";
"Three party (3PTY) supplementary service".
"Completion of Calls on No Reply (CCNR) supplementary service";
"Protocol Implementation Conformance Statement (PICS) proforma specification for basic services"
"Test Suite Structure and Test Purposes (TSS&TP) specification for basic services"
"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for basic services"
"Protocol Implementation Conformance Statement (PICS) proforma specification for supplementary
services"
"Test Suite Structure and Test Purposes (TSS&TP) specification for supplementary services"
"Abstract Test Suite (ATS) and partial Protocol Implementation eXtra Information for Testing (PIXIT)
proforma specification for supplementary services"
Part 13 has not been issued.
ETSI
4
EN 300 356-15 V3.2.2 (1998-08)
In accordance with CCITT Recommendation I.130, the following three level structure is used to describe the
supplementary telecommunication services as provided by European public telecommunications operators under the
pan-European Integrated Services Digital Network (ISDN):
-
Stage 1: is an overall service description, from the user's stand-point;
-
Stage 2: identifies the functional capabilities and information flows needed to support the service described in
stage 1; and
-
Stage 3: defines the signalling system protocols and switching functions needed to implement the service
described in stage 1.
This EN details the stage three aspects (signalling system protocols and switching functions) needed to support the
diversion supplementary services. The stage 1 and stage 2 aspects are detailed in ETS 300 199 to ETS 300 202 and
ETS 300 203 to ETS 300 206, respectively.
National transposition dates
Date of adoption of this EN:
31 August 1998
Date of latest announcement of this EN (doa):
30 November 1998
Date of latest publication of new National Standard
or endorsement of this EN (dop/e):
31 May 1999
Date of withdrawal of any conflicting National Standard (dow):
31 May 1999
Endorsement notice
The text of ITU-T Recommendation Q.732, clauses 2 to 5 (1996), was approved by ETSI as an EN with agreed
modifications as given below.
NOTE:
New or modified text is indicated using sidebars. In addition, underlining and/or strike-out are used to
highlight detailed modifications where necessary.
ETSI
5
EN 300 356-15 V3.2.2 (1998-08)
Global modifications to ITU-T Recommendation Q.732,
clauses 2 to 5
Insert the following two clauses (Scope and Normative references) at the start of clause 2:
Scope
This fifteenth part of EN 300 356 specifies the stage three of the diversion supplementary services for the pan-European
Integrated Services Digital Network (ISDN) as provided by the European public telecommunications operators by
means of the Signalling System No.7 protocol for the ISDN User Part (ISUP). Stage three identifies the protocol
procedures and switching functions needed to support a telecommunication service
(see CCITT Recommendation I.130 [1]).
The present document does not specify the additional protocol requirements where the service is provided to the user via
a telecommunications network that is not an ISDN.
The present document does not specify the additional protocol requirements for the national signalling interface.
Although the present document applies only to the international interconnection, the specification of functions, formats
and codes of messages and signals, and actions performed at originating and destination local exchanges are retained.
Formats, codes and procedures marked for national use are included for informative purposes for the international
interface specification. If these items so marked are supported within a national network and operator's network, then it
is proposed that they shall be supported in this manner.
NOTE:
In the case where a national signalling system behaves differently, the international gateway exchange is
to support both the concerned national and international network.
The diversion supplementary services are applicable to all circuit-switched telecommunication services.
References
The following documents contain provisions which, through reference in this text, constitute provisions of the present
document.
• References are either specific (identified by date of publication, edition number, version number, etc.) or
non-specific.
• For a specific reference, subsequent revisions do not apply.
• For a non-specific reference, subsequent revisions do apply.
• 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]
CCITT Recommendation I.130 (1988): "Method for the characterization of telecommunication
services supported by an ISDN and network capabilities of an ISDN".
[2]
ETS 300 121 (1992): "Integrated Services Digital Network (ISDN); Application of the ISDN User
Part (ISUP) of CCITT Signalling System No.7 for international ISDN interconnections (ISUP
version 1)".
[3]
ETS 300 199: "Integrated Services Digital Network (ISDN); Call Forwarding Busy (CFB)
supplementary service; Service description".
[4]
ETS 300 202: "Integrated Services Digital Network (ISDN); Call Deflection (CD) supplementary
service; Service description".
ETSI
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EN 300 356-15 V3.2.2 (1998-08)
[5]
ETS 300 203: "Integrated Services Digital Network (ISDN); Call Forwarding Busy (CFB)
supplementary service; Functional capabilities and information flows".
[6]
ETS 300 206: "Integrated Services Digital Network ISDN); Call Deflection (CD) supplementary
service; Functional capabilities and information flows".
[7]
EN 300 356-1: "Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User
Part (ISUP) version 3 for the international interface; Part 1: Basic services
[ITU-T Recommendations Q.761 to Q.764 (1997), modified]".
[8]
EN 300 356-2: "Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User
Part (ISUP) version 3 for the international interface; Part 2: ISDN supplementary services
[ITU-T Recommendation Q.730 (1997), modified]".
[9]
EN 300 356-3: "Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User
Part (ISUP) version 3 for the international interface; Part 3: Calling Line Identification
Presentation (CLIP) supplementary service [ITU-T Recommendation Q.731, clause 3 (1993),
modified]".
[10]
EN 300 356-4: "Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User
Part (ISUP) version 3 for the international interface; Part 4: Calling Line Identification Restriction
(CLIR) supplementary service [ITU-T Recommendation Q.731, clause 4 (1993), modified]".
[11]
EN 300 356-18: "Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN
User Part (ISUP) version 3 for the international interface; Part 18: Completion of Calls to Busy
Subscriber (CCBS) supplementary service [ITU-T Recommendation Q.733, clause 3 (1997),
modified]".
[12]
EN 300 403-1: "Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System
No. one (DSS1) protocol; Signalling network layer for circuit-mode basic call control; Part 1:
Protocol specification [ITU-T Recommendation Q.931 (1993), modified]".
Throughout the text of ITU-T Recommendation Q.732, clauses 2 to 5
Replace references as shown in table 1.
Table 1
Reference in ITU-T Recommendation
Q.732, clauses 2 to 5
ITU-T Recommendation Q.730
ITU-T Recommendation Q.761
ITU-T Recommendation Q.762
ITU-T Recommendation Q.763
ITU-T Recommendation Q.764
ITU-T Recommendation Q.767
ITU-T Recommendation Q.931
Modified reference
ITU-T Recommendation Q.730 as modified by EN 300 356-2 [8]
ITU-T Recommendation Q.761 as modified by EN 300 356-1 [7]
ITU-T Recommendation Q.762 as modified by EN 300 356-1 [7]
ITU-T Recommendation Q.763 as modified by EN 300 356-1 [7]
ITU-T Recommendation Q.764 as modified by EN 300 356-1 [7]
ETS 300 121 [2]
ITU-T Recommendation Q.931 as modified by EN 300 403-1 [12]
Subclause 2.5.2.1.1, last sentence
Modify the last sentence as follows:
In these cases the ACM will contain an optional backward call indicator set to "call diversion may occur" which
indicates that the call is not yet in a stable state.
ETSI
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EN 300 356-15 V3.2.2 (1998-08)
Subclause 2.5.2.3.1
Replace the complete text by:
An outgoing international gateway exchange checks the following number parameters received in the IAM:
-
original called number;
-
redirecting number.
The procedure for the Original called number and the Redirecting number are the same as for the Calling party number
as specified in the CLIP/CLIR supplementary service (see EN 300 356-3 [9] and EN 300 356-4 [10]).
Subclause 2.5.2.4.1
Replace the complete text by:
An incoming international gateway exchange checks the following number parameter received in the IAM:
-
original called number;
-
redirecting number.
The procedure for the Original called number and the Redirecting number are the same as for the Calling party number
as specified in the CLIP supplementary service (see EN 300 356-3 [9]).
The passing of the Redirection number is subject to bilateral agreement.
If a Redirection number restriction parameter is received and a Redirection number has been discarded, then the
Redirection number restriction parameter is also discarded.
If a network supports the CPG as the first backward message, then the incoming international gateway exchange has to
map the CPG into an ACM and the following ACM into CPG.
If the national network supports CPG with event information indicating CFB, CFNR or CFU (see note in
subclause 2.4.2), then when the incoming international gateway exchange receives such a CPG without either the
generic notification indicator or the call diversion information, it will generate the missing parameters using the event
information. If the received CPG is then mapped into a CPG on the international side, then the event information will be
set to indicate progress unless bilateral agreements exist permitting the call forwarding codes in event information to be
passed (see note in subclause 2.4.2).
Subclause 2.5.2.5.1.2, table 2-4/Q.732
Modify the "NOTE" as follows:
NOTE:
The echo control information parameter is handled according to the echo control not transferred into the
CPG message. These procedures in subclause 2.7 of Q.764; in this case a diverting exchange is considered
to be an intermediate exchange.are according to 2.7.2.2.1 of the basic call.
Subclause 2.5.2.5.1.2, item(e), sub-item(ii), first paragraph
Delete "automatic congestion level".
Subclause 2.5.2.5.2.2
Delete "In Option B: If it would, the call is cleared."
Add the following note:
NOTE:
Option A and option B described in this subclause are completely independent from options A and B in
subclause 2.5.2.5.1.2.
ETSI
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EN 300 356-15 V3.2.2 (1998-08)
Subclause 2.6.2
Replace the complete text by:
No impact on ISUP.
Subclause 2.6.3, last sentence
Delete the last sentence "The setting (...)".
Add the following note:
NOTE:
The diverting exchange shall divert the Connected number and the Generic number (additional connected
number, if present) parameters.
Subclause 2.6.4, last sentence
Delete the last sentence "The setting (...)".
Subclause 2.6.19
Replace the complete text by:
Interactions are described in EN 300 356-18 [11].
ETSI
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EN 300 356-15 V3.2.2 (1998-08)
Annex ZA (informative):
Coding of the compatibility information
It is recommended that the parameter compatibility information for the call diversion information parameter should be
coded as follows:
a) Nth upgraded parameter:
0011 0110
call diversion information parameter.
b) Instruction indicators:
bit
bit
bit
bit
bit
bits
bits
A:
Transit at intermediate exchange indicator;
0
transit interpretation;
B:
Release call indicator;
0
do not release call;
C:
Send notification indicator;
0
do not send notification;
D:
Discard message indicator;
0
do not discard message (pass on);
E:
Discard parameter indicator;
0
do not discard parameter (pass on);
GF:
Pass on not possible indicator;
10
discard parameter;
JI:
Broadband/narrowband interworking indicator;
00
pass on.
It is recommended that the parameter compatibility information for the generic notification parameter should be coded
as follows:
a) Nth upgraded parameter:
0010 1100
generic notification parameter.
b) Instruction indicators:
bit
bit
bit
bit
A:
Transit at intermediate exchange indicator;
0
transit interpretation;
B:
Release call indicator;
0
do not release call;
C:
Send notification indicator;
0
do not send notification;
D:
Discard message indicator;
0
do not discard message (pass on);
ETSI
10
bit
bits
bits
E:
Discard parameter indicator;
0
do not discard parameter (pass on);
GF:
Pass on not possible indicator;
10
discard parameter;
JI:
Broadband/narrowband interworking indicator;
00
pass on.
EN 300 356-15 V3.2.2 (1998-08)
It is recommended that the parameter compatibility information for the redirection number restriction parameter should
be coded as follows:
a) Nth upgraded parameter:
0100 0000
redirection number restriction parameter.
b) Instruction indicators:
bit
bit
bit
bit
bit
bits
bits
A:
Transit at intermediate exchange indicator;
0
transit interpretation;
B:
Release call indicator;
0
do not release call;
C:
Send notification indicator;
0
do not send notification;
D:
Discard message indicator;
0
do not discard message (pass on);
E:
Discard parameter indicator;
0
do not discard parameter (pass on);
GF:
Pass on not possible indicator;
10
discard parameter;
JI:
Broadband/narrowband interworking indicator;
00
pass on.
ETSI
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EN 300 356-15 V3.2.2 (1998-08)
History
Document history
Edition 1
February 1995
Publication as ETS 300 356-15
V3.1.1
October 1997
Public Enquiry
PE 9809:
1997-10-31 to 1998-02-27
V3.2.1
June 1998
Vote
V 9834:
1998-06-15 to 1998-08-28
V3.2.2
August 1998
Publication
ISBN 2-7437-2512-5
Dépôt légal : Aout 1998
ETSI