ISO/IEC 14844:1996
(Main)Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Do not disturb and do not disturb override supplementary services
Information technology — Telecommunications and information exchange between systems — Private Integrated Services Network — Inter-exchange signalling protocol — Do not disturb and do not disturb override supplementary services
Describes the signalling protocol for the support of the Do Not Disturb and Do Not Disturb Override supplementary services (SS-DND and SS-DNDO) at the Q reference point between Private Integrated Services Network Exchanges (PINXs) connected together within a Private Integrated Services Network (PISN).
Technologies de l'information — Télécommunications et échange d'information entre systèmes — Réseau privé à intégration de services — Protocole de signalisation d'interéchange — Services supplémentaires ne pas déranger et dérogation à ne pas déranger
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INTERNATIONAL ISO/IEC
STANDARD
First edition
1996-09-I 5
Information technology -
Telecommunications and information
exchange between systems - Private
Integrated Services Network -
Inter-exchange signalling protocol - Do not .
disturb and do not disturb override
supplementary services
Technologies de /‘information - T~I&ommunications et &change
d’information entre systemes - R&eau priv6 a intkgration de services -
Pro tocole de signalisa tion d ‘in terkhange - Services supplbmen takes ne
pas d&anger et dgrogation ;i ne pas d&anger
Reference number
&O/I EC 14844: 1996(E)
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ISOAEC 14844: 1996 (E)
Contents
V
Foreword
vi
Introduction
1
1 Scope
1
2 Conformance
3 Normative references 1
4 Definitions 2
2
4.1 External definitions
3
4.2 Other definitions
5 List of acronyms 3
3
6 Signalling protocol for the support of SS-DND and SS-DNDO
3
6.1 SS-DND and SS-DNDO description
3
6.2 SS-DND and SS-DNDO operational requirements
6.2.1 Provision/withdrawal
6.2.2 Requirements on the Terminating PINX
6.2.3 Requirements on the Originating PINX
6.2.4 Requirements on the Activating PINX
6.25 Requirements on the Deactivating PINX
6.2.6 Requirements on the Interrogating PINX
6.2.7 Requirements on a SS-DND Served User PINX
6.2.8 Requirements on a Transit PINX
6.3 SS-DND and SS-DNDO coding requirements
6.3.1 Operations 5
6.3.2 Notifications 9
9
6.3.3 Information elements
10
6.3.4 Messages
6.4 SS-DND and SS-DNDO state definitions 10
10
6.4.1 State at the Terminating PINX
10
6.4.2 States at the Originating PINX
6.4.3 States at the Activating PINX 10
10
6.4.4 States at the Deactivating PINX
11
6.45 States at the Interrogating PINX
6.4.6 State at the SS-DND Served User PINX 11
6.5 SS-DND signalling procedures 11
11
6.5.1 Actions at the Terminating PINX
6.5.2 Actions at the Originating PINX 11
6.5.3 Actions at the Activating PINX 12
0 ISO/IEC 1996
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or
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mission in writing from the publisher.
ISO/IEC Copyright Office * Case Postale 56 * CH-1211 Geneve 20 * Switzerland
Printed in Switzerland
ii
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OISO/IEC ISO/IEC 14844:1996 (E)
6.5.4 Actions at the Deactivating PINX 12
6.5.5 Actions at the Interrogating PINX 13
6.5.6 Actions at the Served User PINX
13
6.5.7 Actions at a Transit PINX 14
6.6 SS-DNDO signalling procedures 14
6.6.1 Actions at the Terminating PINX 14
6.6.2 Actions at the Originating PINX 15
6.6.3 Actions at a Transit PINX 15
6.7 Impact of interworking with public ISDNs 15
6.7.1 SS-DND 15
6.7.2 SS-DNDO 15
6.8 Impact of interworking with non-ISDNs
16
6.8.1 SS-DND
16
6.8.2 SS-DNDO
16
6.9 Protocol interactions between SS-DND and other supplementary services and ANFs
16
6.9.1 Interaction between SS-DND and Calling Name Identification Presentation (SS-CNIP) 16
6.9.2 Interaction between SS-DND and Connected Name Identification Presentation (SS-CONP) 16
6.9.3 Interaction between SS-DND and Call Completion to Busy Subscriber (SS-CCBS) 16
6.9.4 Interaction between SS-DND and Call Completion on No Reply (SS-CCNR) 16
6.9.5 Interaction between SS-DND and Call Transfer (SS-CT) 17
6.9.6 Interaction between SS-DND and Call Forwarding Unconditional (SS-CFU)
17
6.9.7 Interaction between SS-DND and Call Forwarding Busy (SS-CFB)
17
6.9.8 Interaction between SS-DND and Call Forwarding No Reply (SS-CFNR)
17
6.9.9 Interaction between SS-DND and Path Replacement (ANF-PR) 17
6.9.10 Interaction between SS-DND and Call Offer (SS-CO) 17
6.9.11 Interaction between SS-DND and Do Not Disturb Override (SS-DNDO) 17
6.9.12 Interaction between SS-DND and Call Intrusion (SS-CI) 17
6.10 Protocol interactions between SS-DNDO and other supplementary services and ANFs
17
6.10.1 Interaction between SS-DNDO and Calling Name Identification Presentation (SS-CNIP)
17
6.10.2 Interaction between SS-DNDO and Connected Name Identification Presentation (SS-CONP)
17
6.10.3 Interaction between SS-DNDO and Call Completion to Busy Subscriber (SS-CCBS)
17
6.10.4 Interaction between SS-DNDO and Call Completion on No Reply (SS-CCNR) 17
6.10.5 Interaction between SS-DNDO and Call Transfer (SS-CT) 17
6.10.6 Interaction between SS-DNDO and Call Forwarding Unconditional (SS-CFU) 17
6.10.7 Interaction between SS-DNDO and Call Forwarding Busy (SS-CFB) 18
6.10.8 Interaction between SS-DNDO and Call Forwarding No Reply (SS-CFNR) 18
6.10.9 Interaction between SS-DNDO and Path Replacement (ANF-PR) 18
6.10.10 Interaction between SS-DNDO and Call Offer (SS-CO)
18
6.10.11 Interaction between SS-DNDO and Do Not Disturb (SS-DND)
18
6.10.12 Interaction between SS-DNDO and Call Intrusion (SS-CI)
18
6.11 SS-DND and SS-DNDO parameter values (timers)
18
6.11.1 Timer Tl
18
6.11.2 Timer T2 19
6.11.3 Timer T3 19
6.11.4 Timer T4 19
Annex A - Signalling protocol for the support of Path Retention 20
Annex B - Protocol Implementation Conformance Statement (PICS) proforma 29
Annex C- Examples of message sequences 40
Annex D - Specification and Description Language (SDL) representation of procedures 45
. . .
111
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OISO/IEC
ISO/IEC 14844: 1996 (E)
Annex E - Imported ASN. 1 definitions relating to numbers 52
iv
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OISOIIEC ISO/IEC 14844:1996 (E)
Foreword
IS0 (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the
specialized system for worldwide standardization. National bodies that are members of IS0 or IEC participate in the
development of International Standards through technical committees established by the respective organization to deal with
particular fields of technical activity. IS0 and IEC technical committees collaborate in fields of mutual interest. Other
international organizations, governmental and non-governmental, in liaison with IS0 and IEC, also take part in the work.
In the field of information technology, IS0 and IEC have established a joint technical committee, ISO/IEC JTC 1. Draft
International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an
International Standard requires approval by at least 75% of the national bodies casting a vote.
International Standard ISOIIEC 14844 was prepared by ECMA (as Standard ECMA-194) and was adopted, under a special
“fast-track procedure”, by Joint Technical Committee ISO/IEC JTC 1, Information technology, in parallel with its approval by
national bodies of IS0 and IEC.
Annexes A and B form an integral part of this International Standard. Annexes C, D and E are for information only.
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OISO/IEC
ISO/IEC 14844: 1996 (E)
Introduction
This International Standard is one of a series of International Standards defining services and signalling protocols applicable to
Private Integrated Services Networks (PISNs). The series uses ISDN concepts as developed by ITU-T and conforms to the
framework of International Standards for Open Systems Interconnection as defined by ISO/IEC.
This particular International Standard specifies the signalling protocol for use at the Q reference point in support of the Do Not
Disturb (DND) and Do Not Disturb Override (DNDO) supplementary services.
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INTERNATIONAL STANDARD @ ISOmC ISO/IEC 14844:1996 (E)
Information technology - Telecommunications and information exchange between
systems - Private Integrated Services Network - Inter-exchange signalling protocol -
Do not disturb and do not disturb override supplementary services
1 Scope
This International Standard specifies the signalling protocol for the support of the Do Not Disturb and Do Not Disturb
Override supplementary services (SS-DND and SS-DNDO) at the Q reference point between Private Integrated Services
Network Exchanges (PIN%) connected together within a Private Integrated Services Network (PISN).
SS-DND is a supplementary service which enables a served user to cause the PISN to reject any calls, or just those
associated with a specified basic service, addressed to the served user’s PISN number. The calling user is given an indication.
Incoming calls are rejected as long as the service is active. The served user’s outgoing service is unaffected.
SS-DNDO is a supplementary service which enables a served user to override SS-DND at a called number; that is, to allow
the call to proceed as if the called user had not activated SS-DND.
The Q reference point is defined in ISO/IEC 11579-l.
Service specifications are produced in three stages and according to the method specified in CCITT Recommendation I. 130.
This International Standard contains the stage 3 specification for the Q reference point and satisfies the requirements
identified by the stage 1 and stage 2 specifications in ISO/IEC 14842.
The signalling protocols for SS-DND(0) operate on top of the signalling protocol for basic circuit switched call control, as
specified in ISO/IEC 11572, and use certain aspects of the generic procedures for the control of supplementary services
specified in ISO/IEC 11582.
This International Standard also specifies additional signalling protocol requirements for the support of interactions at the Q
reference point between SS-DND and other supplementary services and ANFs and between SS-DNDO and other
supplementary services and ANFs.
Note - Additional interactions that have no impact on the signalling protocol at the Q reference point can be found in the relevant stage 1 specifications.
This International Standard is applicable to PINXs which can interconnect to form a PISN.
2 Conformance
In order to conform to this International Standard, a PINX shall satisfy the requirements identified in the Protocol
Implementation Conformance Statement (PICS) proforma in annex B.
3 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this International
Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to
agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent
editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International
Standards.
ISO/IEC 11572: 1996, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Circuit-mode bearer services - Inter-exchange signalling
procedures and protocol.
ISO/IEC 11574: 1994, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Circuit-mode 64 kbit-s bearer services - Service
description, functional capabilities and information flows.
ISOAEC 11579-1:1994, Information technology - Telecommunications and information exchange between systems -
Private integrated services network - Part I: Reference configuration for PISN Exchanges
(PINX).
ISO/IEC 11582:1995, Telecommunications and information exchange between systems -
Information technology -
Private Integrated Services Network - Generic functional protocol for the support of
supplementary services - Inter-exchange signalling procedures and protocol.
1
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ISO/IEC 14844: 1996 (E) OISOIIEC
Information technology - Telecommunications and information exchange between systems -
ISO/IEC 13870:1995,
Private Integrated Services Network - Inter-exchange signalling protocol - Call completion
supplementary services.
ISO/IEC 13873:1995, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Inter-exchange signalling protocol - Call diversion
supplementary services.
ISOIIEC 14842: 1996, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Specification, functional model and information flows - Do
not disturb and do not disturb override supplementary services.
ISOIIEC 14843: 1996, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Inter-exchange signalling protocol - Call offer
supplementary service.
ISO/IEC 14846: 1996, Information technology - Telecommunications and information exchange between systems -
Private Integrated Services Network - Inter-exchange signalling protocol - Call intrusion
supplementary service.
CCITT Rec. I.1 12:1988, Vocabulary of terms for ISDNs (Blue Book).
CCITT Rec. 1.210: 1988, Principles of telecommunication services supported by an ISDN and the means to describe them
(Blue Book).
Specification and Description Language (Blue Book).
CCITT Rec. 2.100: 1988,
CCITI’ Rec. Q.950: 1994 Digital Subscriber Signalling System No. 1 (DSSI) supplementary services protocols; Structure
and general principles.
4 Definitions
For the purposes of this International Standard, the following definitions apply.
External definitions
4.1
This International Standard uses the following terms defined in other documents:
(ISO/IEC 11582)
Application Protocol Data Unit (APDU)
Basic Service (CCITT Rec. 1.210)
Call, Basic Call (ISOLIEC 11582)
Coordination Function (ISOLIEC 11582)
(ISOLIEC 11582)
End PINX
Gateway PINX (ISO/IEC 11572);
Interpretation APDU (ISOLIEC 11582)
(ISOLIEC 11582)
Network Facility Extension (NFE)
Originating PINX (ISOLIEC 11582)
Private Integrated Services Network (PISN) (ISOLIEC 11579-l)
(ISO/IEC 11579- 1)
Private Integrated Services Network Exchange (PINX)
Rerouteing PINX (ISOLIEC 13873)
Served user (ISOLIEC 14842);
Signalling (CCITT Rec. I. 112)
Supplementary Service (CCITT Rec. 1.210)
Supplementary Services Control Entity (ISOLIEC 11582)
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ISO/IEC 14844: 1996 (El
OISO/IEC
(ISO/IEC 11582)
- Terminating PINX
- Transit PINX (ISO/IEC 11582)
(ISO/IEC 11574)
- User
4.2 Other definitions
Activating PINX : The PINX serving the activating user.
Deactivating PINX : The PINX serving the deactivating user.
inter-PINX link : The totality of a signalling channel and a number of information channels at the Q reference point.
Interrogating PINX : The PINX serving the interrogating user.
path retention : The retaining of the network connection between the Originating PINX and the Terminating PINX so that a
supplementary service (such as SS-DNDO) can be invoked without establishing a new connection.
Served User PINX : The PINX serving the served user.
5 List of acronyms
ANF Additional Network Feature
APDU Application Protocol Data Unit
ASN. 1 Abstract Syntax Notation no. 1
DNDOCL DNDO Capability Level
DNDPL DND Protection Level
ISDN Integrated Services Digital Network
NFE Network Facility Extension
PIGS Protocol Implementation Conformance Statement
PINX Private Integrated Services Network Exchange
PISN Private Integrated Services Network
Specification and Description Language
SDL
SS-DND Supplementary Service Do Not Disturb
SS-DNDO Supplementary Service Do Not Disturb Override
TE Terminal Equipment
Signalling protocol for the support of SS-DND and SS-DNDO
6
6.1 SS-DND and SS-DNDO description
SS-DND is a supplementary service which enables a served user to cause the PISN to reject any calls, or just those associated
with a specified basic service, addressed to the served user’s PISN number. The calling user is given an appropriate indication.
Incoming calls are rejected as long as the service is active. The served user’s outgoing service is unaffected.
SS-DNDO is a supplementary service which enables a calling user to override SS-DND at a called user, allowing the call to
proceed as if the called user had not activated SS-DND.
Both SS-DND and SS-DNDO are applicable to all circuit mode basic services defined in ISO/IEC 11574.
6.2 SS-DND and SS-DNDO operational requirements
6.2.1 Provision/withdrawal
6.2.1.1 Provision/withdrawal of SS-DND
SS-DND is provided or withdrawn after pre-arrangement with the service provider.
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OISO/IEC
ISO/IEC 14844: 1996 (E)
SS-DND is provided on a per PISN number basis and per basic service basis. For each PISN number, the supplementary
service can be subscribed to for every basic service subscribed to by that PISN number, or for only some of the basic services
subscribed to by that PISN number.
SS-DND subscription parameters may apply separately to each basic service to which SS-DND is subscribed, or for all the
basic services to which SS-DND is subscribed.
If SS-DNDO is implemented then the subscription parameter “DND protection level” (DNDPL) shall be provided. The
DNDPL has a value in the range 0 to 3 where 0 means no protection against DNDO and 3 means total protection against
DNDO. The values 0 and 3 shall be offered. The values 1 and 2 may, as an implementation option, be offered. The effect of the
subscription parameter DNDPL shall be as described in subclause 6.3.10 of ISOAEC 14842.
The subscription parameter “Served user notification of SS-DND” may be provided. If it is not provided, as an implementation
option, the network may or may not notify the served user of DND invocation.
6.2.1.2 Provision/withdrawal of SS-DNDO
SS-DNDO is provided or withdrawn after prearrangement with the service provider.
SS-DNDO is provided on a per PISN number basis and per basic service basis. For each PISN number, the supplementary
service can be subscribed to for every basic service subscribed to by that PISN number, or for only some of the basic services
subscribed to by that PISN number.
SS-DNDO subscription parameters may apply separately to each basic service to which SS-DNDO is subscribed, or for all the
basic services to which SS-DNDO is subscribed.
The subscription parameter “DNDO capability level” (DNDOCL) shall be provided. The DNDOCL has a value in the range 1
(lowest capability) to 3 (highest capability). At least one of the DNDOCL levels shall be offered. The effect of the subscription
parameter “DNDO capability level” shall be as described in subclause 6.3.10 of ISO/IEC 14842.
6.2.2 Requirements on a Terminating PINX
Call establishment procedures for the incoming side of an inter-PINX link and call release procedures, as specified in ISO/IEC
11572, shall apply.
Generic procedures for the call-related control of supplementary services, as specified in ISO/IEC 11582 for an End PINX,
shall apply. In addition, the generic procedures for notification, as specified in ISO/IEC 11582 for an End PINX, shall apply.
6.2.3 Requirements on an Originating PINX
Call establishment procedures for the outgoing side of an inter-PINX link and call release procedures, as specified in ISO/IEC
11572, shall apply.
Generic procedures for the call-related control of supplementary services, as specified in ISO/IEC 11582 for an End PINX,
shall apply. In addition, the generic procedures for notification, as specified in ISO/IEC 11582 for an End PINX, shall apply.
6.2.4 Requirements on an Activating PINX
Generic procedures for the call-independent control (connection oriented) of supplementary services, as specified in
ISO/IEC 11582 for an Originating PINX, shall apply.
6.2.5 Requirements on a Deactivating PINX
Generic procedures for the call-independent control (connection oriented) of supplementary services, as specified in
ISO/IEC 11582 for an Originating PINX, shall apply.
6.2.6 Requirements on an Interrogating PINX
Generic procedures for the call-independent control (connection oriented) of supplementary services, as specified in
ISO/IEC 11582 for an Originating PINX, shall apply.
6.2.7 Requirements on a SS-DND Served User PINX
Generic procedures for the call-independent control (connection oriented) of supplementary services, as specified
ISO/IEC 11582 for a Terminating PINX, shall apply.
6.2.8 Requirements on a Transit PINX
The basic call procedures for call establishment and call clearing at a Transit PINX, as specified in ISO/IEC 11572, shall apply.
4
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ISO/IEC 14844:1996 (E)
OISOLIEC
Generic procedures for the call-related control and call-independent control (connection oriented) of supplementary services, as
specified in ISO/IEC 11582 for a Transit PINX, shall apply. In addition, the generic procedures for notification, as specified in
ISOLIEC 11582 for a Transit PINX, shall apply.
6.3 SS-DND and SS-DNDO coding requirements
6.3.1 Operations
The operations defined in Abstract Syntax Notation number 1 (ASN. 1) in table 1 shall apply.
Table 1 - Operations in support of SS-DND(0)
lo-Not-Disturb-Operations
{iso standard(O) pssl -do-not-disturb(l4844) do-not-disturb-operations(O) }
)EFINITIONS EXPLICIT TAGS ::=
3EGIN
MPORTS OPERATION, ERROR FROM Remote-Operation-Notation
(joint-iso-ccitt(2) remote-operations(4) notation(O) }
Extension FROM Manufacturer-specific-service-extension-definition
{ iso( 1) standard(O)
pssl -generic=procedures(11582) msi-definition(O)}
basicServiceNotProvided, invalidServedUserNumber, notAvailable,
userNotSubscribed,
suppIementaryServiceInteractionNotAlIowed
FROM General-Error-List
{ccitt recommendation q 950 general-error-list (I)}
PartyNumber FROM Addressing-Data-Elements
{iso( 1) standard(O) pssl -generic-procedures( 11582)
addressing-data-elements(g)}
BasicService FROM Call-Diversion-Operations
{iso standard(O) pssl -call=diversion(l3873) call-diversion-operations(O) }
-- Note. The definition of BasicService is reproduced in annex E
.
DoNotDisturbActivate ::= OPERATION
ARGUMENT DNDActivateArg
RESULT DNDActivateRes
ERRORS { userNotSubscribed,
notAvailable,
invalidServedUserNumber,
basicServiceNotProvided,
temporarilyUnavailable,
supplementaryServicelnteractionNotAllowed,
unspecified}
5
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OISO/IEC
ISO/IEC 14844: 1996 (E)
Table 1 - Operations in support of SS-DND(0) (continued)
IoNotDisturbDeactivate ::= OPERATION
ARGUMENT DNDDeactivateArg
RESULT DummyRes
{ userNotSubscribed,
ERRORS
notAvailable,
invalidServedUserNumber,
notActivated,
temporarilyUnavailable,
supplementaryServiceInteractionNotAllowed,
unspecified}
::= OPERATION
)oNotDisturblnterrogate
ARGUMENT DNDInterrogateArg
RESULT DNDInterrogateRes
{ UserNotSubscribed,
ERRORS
notAvailable,
invalidServedUserNumber,
temporarilyUnavailable,
supplementaryServicelnteractionNotAllowed,
unspecified}
::= OPERATION
IoNotDisturbOverride
ARGUMENT DNDOverrideArg
‘athfletain ::= OPERATION
this operation may be used by other
ARGUMENT PathRetainArg --
-- Supplementary Services using other
-0
values of the argument
5erviceAvailable ::= OPERATION
this operation may be used by other
ARGUMENT ServiceAvailableArg --
-- Supplementary Services using other
--
values of the argument
::= OPERATION
IoNotDisturbOvrExecute
ARGUMENT DummyArg
RESULT DummyResult
ERRORS { notAvailable,
temporarilyUnavailable,
supplementaryServiceInteractionNotAllowed,
unspecified}
::= CHOICE {
DummyArg
NULL,
null
[I] IMPLICIT Extension,
extension
sequenceOfExtn [2] IMPLICIT SEQUENCE OF Extension
1
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ISO/IEC 14844: 1996 (E)
OISO/IEC
Table 1 - Operations in support of SS-DND(0) (continued)
)ummyRes ::= CHOICE {
null NULL,
[I] IMPLICIT Extension,
extension
[2] IMPLICIT SEQUENCE OF Extension
sequenceOfExtn
1
::= SEQUENCE {
INDActivateArg
basicservice BasicService,
servedUserNr PartyNumber,
argumentExtension CHOICE{
extension [I] IMPLICIT Extension,
sequenceof Extn [2] IMPLICIT SEQUENCE OF Extension
} OPTIONAL
I
INDActivateRes ::= SEQUENCE {
status SET OF SEQUENCE{
basicservice BasicService,
dndProtectionLeveI DNDProtectionLeveI OPTIONAL
} OPTIONAL
resultExtension CHOICE{
extension [I] IMPLICIT Extension,
sequenceof Extn [2] IMPLICIT SEQUENCE OF Extension
} OPTIONAL
1
INDDeactivateArg ::= SEQUENCE {
basicservice BasicService,
servedUserNr PartyNumber,
argumentExtension CHOICE{
extension [I] IMPLICIT Extension,
sequenceof Extn [2] IMPLICIT SEQUENCE OF Extension
} OPTIONAL
I
DNDlnterrogateArg ::= SEQUENCE {
servedUserNr PartyNumber,
argumentExtension CHOICE{
[I] IMPLICIT Extension,
extension
sequenceOfExtn [2] IMPLICIT SEQUENCE OF Extension
} OPTIONAL
I
7
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OISOIIEC
ISO/IEC 14844: 1996 (E)
Table 1 - Operations in support of SS-DND(0) (continued)
INDInterrogateRes ::= SEQUENCE {
SET OF SEQUENCE {
status
basicservice BasicService,
dndProtectionLeveI DNDProtectionLevel OPTIONAL
} OPTIONAL
resultExtension CHOICE{
[I] IMPLICIT Extension,
extension
sequenceof Extn [2] IMPLICIT SEQUENCE OF Extension
} OPTIONAL
INDOverrideArg := SEQUENCE {
dndoCapabilityLevel DNDOCapabilityLevel,
argumentExtension CHOICE{
[I] IMPLICIT Extension,
extension
[2] IMPLICIT SEQUENCE OF Extension
sequenceof Extn
} OPTIONAL
‘athRetainArg ::= CHOICE {
ServiceList,
serviceList
SEQUENCE {
extendedServiceList
serviceList ServiceList,
extension Extension
ServiceAvailableArg ::= CHOICE {
serviceList ServiceList,
SEQUENCE {
extendedServiceList
ServiceList,
servicelist
extension Extension
DNDProtectionLevel ::= ENUMERATED {
lowProtection(
mediumProtection(
highProtection(2),
fullProtection(3)
1
::= ENUMERATED {
DNDOCapabilityLevel
overrideLowProt(l),
overrideMediumProt(2),
overrideHighProt(3)
1
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OISOAEC ISO/IEX 14844:1996 (E)
Table 1 - Operations in support of SS-DND(0) (concluded)
ServiceList ::= BIT STRING
{ dndo-low(l), dndo=medium(2), dndo-high(3) } (SIZE (1.32))
-- bits other than dndo-low, dndo-medium, or dndo-high, are reserved
-- for other Supplementary Services
temporarilyUnavailable ERROR ::= 1000
notActivated ERROR ::= 43
Unspecified ::= ERROR PARAMETER Extension
unspecified Unspecified ::= 1008
doNotDisturbActivateQ ::= 35
DoNotDisturbActivate
::= 36
doNotDisturbDeactivateQ DoNotDisturbDeactivate
..-
doNotDisturbInterrogateQ DoNotDisturblnterrogate .- 37
“.
doNotDisturbOverrideQ DoNotDisturbOverride .- 38
doNotDisturbOvrExecuteQ DoNotDisturbOvrExecute ::= 39
::= 41
pathRetain PathRetain
ServiceAvailable ServiceAvailable ::= 42
ID
END of Do-Not-Disturb-Operations
6.3.2 Notifications
The notification defined in Abstract Syntax Notation number 1 (ASN.1) in table 2 shall apply.
Table 2 - Notification in support of SS-DND
Do-Not-Disturb-Notifications
{iso( 1) standard(O) pssl -do-not-disturb( 14844) do-not-disturb-notifications( 1) })
DEFINITIONS EXPLICIT TAGS ::=
3EGIN
IMPORTS NOTIFICATION FROM Notification-Data-Structure
{ iso( 1) standard(O)
pssl -generic-procedures (11582) notification-data-structure (7) } ;
DoNotDisturb ::= NOTIFICATION
ARGUMENT NULL
DoNotDisturb ::= 2002
doNotDisturb
,I
END of Do-Not-Disturb-Notifications
6.3.3 Information elements
6.3.3.1 Facility information element
APDUs of the operations defined in 6.3.1 shall be coded in the Facility information element in accordance with ISO/IEC
11582.
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ISO/IEC 14844: 1996 (E) OISO/IEC
When conveying APDUs of operations defined in subclause 6.3.1, the destinationEntity data element of the NFE shall contain
value endPINX.
When conveying the invoke APDU of operation doNotDisturbOverrideQ, the Interpretation APDU shall contain value
disca.rdAnyUnrecognisedInvokePdu.
operations doNotDisturbOvrExecuteQ, doNotDisturbActivateQ,
When conveying the invoke APDUs of
doNot.DisturbDeactivateQ or doNotDisturbInterrogateQ, the Interpretation APDU shall be omitted.
Note - Additional requirements for the conveyance of APDUs of operations pathRetain and ServiceAvailable are given in A.3.2 of annex A.
6.3.3.2 Notification indicator information element
The notification defined in subclause 6.3.2 shall be coded in the Notification indicator information element in accordance with
ISO/IEC 11582.
6.3.3.3 Other information elements
Any other information elements (e.g. Progress indicator) shall be coded in accordance with the rules of ISO/IEC 11572 and
ISO/IEC 11582.
6.3.4 Messages
The Facility information element and the Notification indicator information element shall be conveyed in the messages as
specified in clause 10 of ISO/IEC 11582.
Messages used for call establishment and release shall be as specified in ISO/IEC 11572.
6.4 SS-DND and SS-DNDO state definitions
6.4.1 State at the Terminating PINX
The procedures for the Terminating PINX are written in terms of the following conceptual state existing within the SS-DND
Supplementary Service Control entity in that PINX in association with a particular incoming call for the served user.
6.4.1.1 DND-tIdle
SS-DND or SS-DNDO operation is not in progress.
6.4.2 States at the Originating PINX
The procedures for the Originating PINX are written in terms of the following conceptual states existing within the SS-DNDO
Supplementary Service Control entity in that PINX in association with a particular call of the calling user.
6.4.2.1 DNDO-oIdle
SS-DNDO is not operating.
6.4.2.2 DNDO-oAwaitExecResult
A doNotDisturbOvrExecuteQ invoke APDU has been sent.
6.4.3 States at the Activating PINX
The procedures for the Activating PINX for remote activation of SS-DND are written in terms of the following
...
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