I T U NTERNATIONAL



I

NTERNATIONAL

T

ELECOMMUNICATION

U

NION

Telecommunication

Standardization Bureau

Geneva, 20 March 2000

Ref:

Tel:

Fax:

TSB Circular 260

COM 4

COM 11

COM 16

+41 22 730 5860

+41 22 730 5853

- To the Administrations of Member States

of the Union

Copy:

- To ITU-T Sector Members;

- To the Chairpersons and Vice-Chairpersons of

Study Groups 4, 11 and 16;

- To the Director of the Telecommunication

Development Bureau;

- To the Director of the Radiocommunication

Bureau

Subject: Meetings of Study Groups 4, 11 and 16 with a view to approving six draft revised and 31 draft new

Recommendations in accordance with the provisions of

Resolution 1, Section 8, of the WTSC (Geneva, 1996) -

Geneva, 15 June 2000

Dear Sir/Madam,

1 In accordance with the decision taken at the Telecommunication Standardization

Advisory Group (TSAG) meeting (25-29 October 1999) for additional Study Group meetings,

I would like to inform you that, at the request of the Chairpersons of Study Groups 4, 11 and

16, these Study Groups will meet at ITU Headquarters, Geneva, on 15 June 2000 and intend to apply the procedure described in Resolution 1, Section 8, of the WTSC (Geneva, 1996) for the approval of six draft revised Recommendations and 31 draft new Recommendations.

2 The meeting of Study Group 4 (TMN and Network Maintenance) will open at

0930 hours . The summary and location of the draft revised ITU-T Recommendation proposed for approval will be found in Annex 1 . Further information will be given in TSB Collectiveletter 9/4.

The meeting of Study Group 16 (Multimedia Services and Systems) will open at

1100 hours . The summary and location of the draft new ITU-T Recommendation proposed for approval will be found in Annex 2 . Further information will be given in TSB Collectiveletter 8/16.

Place des Nations

CH-1211 Geneva 20

GENEVE

Switzerland

Telephone +41 22 730 51 11 itumail@itu.int

Telefax Gr3:

X.400 S=itumail; P=itu

Gr4: +41 22 730 65 00

Telex 421 000 uit ch

+41 22 733 72 56

Internet:

Telegram ITU

A=400net; C=ch

- 2 -

The meeting of Study Group 11 (Signalling Requirements and Protocols) will open at

1430 hours . The summary and location of the draft revised and draft new ITU-T

Recommendations proposed for approval will be found in Annex 3 . Further information will be given in TSB Collective-letter 11/11.

3 Any ITU Member State or Sector Member aware of a patent held by itself or others which may fully or partly cover elements of the draft Recommendations proposed for approval is requested to disclose such information to the TSB, in accordance with TSB patent policy (see Resolution 1, Appendix 1 to Section 8, of the WTSC (Geneva, 1996)).

Available patent information can be accessed on-line via the ITU-T Website.

4 Having regard to the provisions of Resolution 1, Section 8, I should be grateful if you would inform me by 2400 hours UTC on 5 June 2000 whether your Administration assigns authority to the Study Groups that these draft revised or new Recommendations should be considered for approval at the Study Groups meeting.

Should any Member States be of the opinion that consideration for approval should not proceed, they should advise their reasons for disapproving and indicate the possible changes that would facilitate further consideration and approval of the draft revised or new

Recommendations.

5 If 70% or more of the replies from Member States support consideration for approval of these draft revised or new Recommendations at the Study Groups meeting, one Plenary session will be devoted on 15 June 2000 to apply the approval procedure.

I accordingly invite your Administration to send a representative to the meeting. The

Administrations of Member States of the Union are invited to supply the name of the Head of their delegation. If your Administration wishes to be represented at the meeting by a recognized operating agency, a scientific or industrial organization or another entity dealing with telecommunication matters, the Director should be duly informed, in accordance with

Article 19, No. 239, of the Convention of the International Telecommunication Union

(Geneva, 1992), as amended by the Plenipotentiary Conference (Kyoto, 1994).

6 The agenda, registration form and all relevant information concerning the Study

Groups meeting will be available from their respective Collective letters as mentioned before.

7 Information on the meeting room will be displayed on the screens at the entrances to the ITU headquarters building.

8 After the meeting, the Director of TSB will notify, in a circular, the decision taken on these Recommendations. This information will also be published in the ITU Notification.

Yours faithfully,

H. Zhao

Director of the Telecommunication

Standardization Bureau

Annexes : 3

ITU-T\BUREAU\CIRC260E.DOC 3/23/00

- 3 -

ANNEX 1

(to TSB Circular 260)

Summary and location of the ITU-T Recommendations for approval at the meeting of Study Group 4

COM 4 – R 54 - DRAFT REVISED RECOMMENDATION M.2101

PERFORMANCE LIMITS FOR BRINGING-INTO-SERVICE AND MAINTENANCE

OF INTERNATIONAL SDH PATHS AND MULTIPLEX SECTIONS

Summary

This Recommendation provides limits for bringing-into-service (BIS) and maintenance for international SDH paths, including tandem connections, and international SDH multiplex sections. Error, timing and availability performance events are addressed.

This Recommendation also deals with all levels of PDH signals transported within SDH containers. Regenerator sections are not covered by this Recommendation.


- 4 -

ANNEX 2

(to TSB Circular 260)

Summary and location of the ITU-T Recommendations for approval at the meeting of Study Group 16

COM 16 – R 62 - DRAFT NEW ITU-T RECOMMENDATION H.248

GATEWAY CONTROL PROTOCOL

Summary

To achieve greater scalability, this recommendation decomposes the H.323 Gateway function defined in H.246 into functional sub-components and specifies protocols these components use to communicate. This allows implementations of H.323 gateways to be highly scalable and encourages leverage of widely deployed SCN network capabilities such as SS7 switches.

This also enables H.323 gateways to be composed of components from multiple vendors distributed across multiple physical platforms. The purpose of the this recommendation is to add capabilities currently defined for H.323 systems and is intended to provide new ways of performing operations already supported in H.323.


- 5 -

ANNEX 3

(to TSB Circular 260)

Summaries and location of the ITU-T Recommendations for approval at the meeting of Study Group 11

COM 11-R 212 DRAFT NEW ITU-T RECOMMENDATION Q. 920 -

AMENDMENT 1

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 1 (DSS1) ISDN USER-

NETWORK INTERFACE DATA LINK LAYER – GENERAL ASPECTS

Summary

This Recommendation describes in general terms the link access procedure on the D-channel,

LAPD. Details are provided in Recommendation Q.921 [1].

The purpose of LAPD is to convey information between layer 3 entities across the ISDN usernetwork interface using the D-channel.

The Recommendation has been amended in order to add a new annex A to describe in general terms the link access procedure for use in a symmetrical application between two Private

Integrated Network eXchanges (PINXs) at the Q reference point.

COM 11-R 213 DRAFT NEW ITU-T RECOMMENDATION Q. 921 -

AMENDMENT 1

ISDN USER-NETWORK INTERFACE – DATA LINK LAYER SPECIFICATION

Summary

This recommendation specifies the Link Access Procedures on the D-channel (LAPD) of an

ISDN customer access. Implementations of this Recommendation are in use in existing networks.

The Recommendation has been amended in order to add a new Annex J and a new Appendix I to describe in general terms the link access procedure for use in a symmetrical application between two Private Integrated Network exchanges (PINXs) at the Q reference point.

COM 11-R 214 DRAFT REVISED ITU-T RECOMMENDATION Q. 65

THE UNIFIED FUNCTIONAL METHODOLOGY FOR THE

CHARACTERIZATION OF SERVICES AND NETWORK CAPABILITIES

INCLUDING ALTERNATIVE OBJECT ORIENTED TECHNIQUES

Summary

This Recommendation contains the Unified Functional Methodology (UFM), superseding the existing Q.65 (06/97), describing a common functional architecture for providing services and addressing signalling requirements for service implementation. The overall method for deriving switching and signalling Recommendations for ISDN services, consisting of three stages, is described in Recommendation I.130. The method has been generalized beyond

ISDN to include services provided in and among networks of various types. The UFM


- 6 - combines the traditional approach of the 1988 version of this Recommendation with some of the approaches traditionally used in the Intelligent Network (IN) description method. The detailed method for deriving the Stage 2 portion of these Recommendations is described in this Recommendation. The main text of this Recommendation presents background information on the unified functional methodology, the steps of the method, the conventions used in description techniques, and guidelines for usage.

COM 11-R 215 DRAFT NEW ITU-T RECOMMENDATION Q.1237

EXTENSIONS TO INTELLIGENT NETWORK CAPABILITY SET 3 IN

SUPPORT OF B-ISDN

Summary

This recommendation describes the call model, the application protocol, and the procedures for Intelligent Network capabilities associated with B-ISDN. It describes an application protocol that is fully compatible with INAP in ITU-T Recommendation Q.1238. It describes

SSF to SCF call control that is based on service aspect requirements and on network aspect requirements of ITU-T Recommendation Q.1231.

COM 11-R 216 DRAFT NEW ITU-T RECOMMENDATION Q.1238.1

INTERFACE RECOMMENDATION FOR INTELLIGENT NETWORK

CAPABILITY SET 3: COMMON ASPECTS

Summary

Recommendation series Q.1238.x define the Intelligent Network (IN) Application Protocol

(INAP) for IN Capability Set 3 (IN CS-3). Recommendation series Q.1238.x define the INAP for IN CS-3 based upon IN CS-2 Q.1224 and Q.1228 specifications (1997), and the general rules for INAP provided in Recommendation Q.1208, and is consistent with the scope of IN

CS-3 as defined in Recommendation Q.1231.

In addition to the features supporting IN CS-1 and IN CS-2 functionalities, Recommendation

Q.1238 provides:

• general extensions to the CS-2 INAP in support of IN CS-3 target services;

• protocol support for Call Party Handling capabilities;

• protocol support for the Service Control Function (SCF) to SCF and Service Data

Function (SDF) to SDF functional relationships to support distributed service logic execution and distributed data functions;

• protocol support for the Call Unrelated Service Function (CUSF) to SCF to support non-call related interactions between users and the SCF;

• additional details on services assumed from lower layers and generic interface security;

• SDLs for SSF related procedure handling based upon Z.100 object oriented

Specification and Description Language (SDL).

Within the Q.123x Recommendation series, Recommendation series Q.1238.x describe the protocol realising the Q.1231 Distributed Functional Plane (DFP) in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base


- 7 - of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future CS-N

Recommendation series Q.1238.x describe the Intelligent Network modelling of each

Functional Entity (FE) and their relationships as defined as part of the DFP. It also defines the

INAP (Intelligent Network Application Protocol) required for the communication of functional entities when they are located in different physical entities.

Intelligent Network Capability Set 3 (IN CS-3) supports the following functional entities:

- Service switching function (SSF)

- Service control function (SCF)

- Specialised resource function (SRF)

- Service data function (SDF)

- Call unrelated service function (CUSF)

- Service Management Function (SMF)

Each of the interfaces defined between the functional entities is defined in a separate recommendation in Q.1238.x series:

Q.1238.1 describes the Common Aspects of IN including an overview of each FE.

It also describes aspects of the protocol that are common to all interfaces, including services assumed from lower layers, IN security information and the common data types used on all the interfaces.

The interfaces and the description of the functional entities in relation to those interfaces are defined in:

Q.1238.2 SSF – SCF Interface

Q.1238.3 SCF – SRF Interface

Q.1238.4 SCF – SDF Interface

Q.1238.5 SDF – SDF Interface

Q.1238.6 SCF – SCF Interface

Q.1238.7 SCF – CUSF Interface

COM 11-R 217 TO R 223 DRAFT NEW ITU-T RECOMMENDATION Q.1238.2


CAPABILITY SET 3: SCF-SSF INTERFACE

Summary

Recommendation series Q.1238.x define the Intelligent Network (IN) Application Protocol for

IN Capability Set 3 (IN CS-3). Series Q.1238.x define the INAP for IN CS-3 based upon IN

CS-2 Q.1228 and Q.1224 specifications (1997), and the general rules for INAP provided in

Q.1208, and is consistent with the scope of IN CS-3 as defined in Q.1231.

Within the Q.123x Recommendation series, Q.1238 describes the protocol realising the

Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology.


- 8 -

This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future CS-N.

Q.1238.2 belongs to the Series Q.1238.x of the ITU-T Recommendation for IN Capability

Set-3. It covers the SSF-SCF interface including the description of the aspects of the

Functional Entities SSF and SCF which are relevant to this interface.



CAPABILITY SET 3: SCF-SRF INTERFACE

Summary


(INAP) for IN Capability Set 3 (IN CS-3). Series Q.1238.x define the INAP for IN CS-3 based upon

IN CS-2 Q.1228 specification (1997), and the general rules for INAP provided in

Recommendation Q.1208, and is consistent with the scope of IN CS-3 as defined in

Recommendation Q.1231.

Within the Q.123x Recommendation series, Recommendation series Q.1238.x describe the protocol realizing Recommendation Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future CS-N.

Recommendation Q.1238.3 belongs to series Q.1238.x for IN Capability Set -3. It covers the

SCF-SRF interface including the description of the aspects of the SCF Functional Entity which are relevant to this interface.



CAPABILITY SET 3: SCF-SDF INTERFACE

Summary


(INAP) for IN Capability Set 3 (IN CS-3). Series Q.1238.x define the INAP for IN CS-3 based upon IN CS-2 Q.1228 and Q.1224 specification (1997), and the general rules for INAP provided in Q.1208, and is consistent with the scope of IN CS-3 as defined in Q.1231.

Within the Q.123x Recommendation Series Q.1238.x describe the protocol realising the

Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future CS-N.

Q.1238.4 belongs to Series Q.1238.x for IN Capability Set -3. It covers the SCF-SDF interface including the description of the aspects of the SCF and SDF Functional Entities which are relevant to this interface.


- 9 -



CAPABILITY SET 3: SDF-SDF INTERFACE

Summary



Within the Q.123x Recommendation series, series Q.1238.x describe the protocol realising the Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future IN CS-N.

Q.1238.5 belongs to ITU-T Recommendation series Q.1238.x for IN CS-3. It covers the SDF-

SDF interface including the description of the aspects of the SDF and SDF Functional Entities which are relevant to this interface.



CAPABILITY SET 3: SCF-SCF INTERFACE

Summary


(INAP) for IN Capability Set 3 (IN CS-3). Series Q.1238.x define the INAP for IN CS-3 based upon IN CS-2 Q.1224 and Q.1228 specifications (1997), and the general rules for INAP provided in Q.1208, and is consistent with the scope of IN CS-3 as defined in Q.1231.

Within the Q.123x Recommendation series, series Q.1238.x describe the protocol realising the Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future CS-N.

Q.1238.6 belongs to ITU-T Recommendation series Q.1238.x for IN Capability Set -3. It covers the SCF-SCF interface including the description of the aspects of the SCF Functional

Entity which are relevant to this interface.


- 10 -



CAPABILITY SET 3: SCF-CUSF INTERFACE

Summary



Within the Q.123x Recommendation series, series Q.1238.x describe the protocol realising the Q.1231 Distributed Functional Plane in a service and vendor implementation independent manner, as constrained by the capabilities of the embedded base of network technology. This provides the flexibility to allocate distributed functionality into multiple physical network configurations and to evolve IN from IN CS-3 to some future IN CS-N.

Q.1238.7 belongs to ITU-T Recommendation series Q.1238.x for IN Capability Set -3. It covers the CUSF-SCF interface including the description of the aspects of the CUSF and SCF

Functional Entities which are relevant to this interface.


REQUIREMENTS ON UNDERLYING NETWORKS AND SIGNALLING

PROTOCOLS TO SUPPORT UPT

Summary

This document contains the Recommendation Q.1521 that specifies some requirements on supporting networks and signalling protocols, for the support of UPT Service Set 1, as defined within Recommendation F.851.


UPT SECURITY REQUIREMENTS FOR SERVICE SET 1

Summary

This Recommendation specifies UPT security requirements for both user to network and internetwork communication applicable to UPT Service Set 1 as defined within

Recommendation F.851. This Recommendation covers all aspects of security for UPT using

DTMF accesses and out-band DSS1 based user accesses.


UPT STAGE 2 FOR SERVICE SET 1 ON CS2 - PROCEDURES FOR UNIVERSAL

PERSONAL TELECOMMUNICATION FUNCTIONAL MODELLING AND

INFORMATION FLOWS

Summary

This document contains the Recommendation Q.1542, defining the stage 2 description of the

UPT procedures for the support of Service Set 1 (as defined in F.851) on Capability Set 2. It


- 11 - follows the approved Recommendation Q.1541, defining the stage 2 description of the UPT procedures for the support of Service Set 1 on Capability Set 1.


INFORMATION FLOWS FOR IMT-2000 CAPABILITY SET 1

Summary

This recommendation specifies Stage 2 information flow procedures for the support of end-toend inter-family and inter-system IMT-2000 Capability Set 1 (CS-1) services and network capabilities. The areas covered are mobility management, call and bearer control, services control, and over-the-air authorization services.


RADIO-TECHNOLOGY INDEPENDENT REQUIREMENTS

FOR IMT-2000 LAYER 2 RADIO INTERFACE

Summary

This Recommendation defines requirements for common services, functions and primitives for the radio technology independent parts of the Layer 2 of the IMT-2000 radio interface, to ensure maximum commonalty between IMT-2000 family members.


INTERNETWORK SIGNALLING REQUIREMENTS FOR IMT-2000 CAPABILITY

SET 1

Summary

This recommendation document contains signalling requirements for the Network to Network

Interface (NNI) protocol. The requirements are to support the capabilities that are recommended in the IMT2000 Framework document and specified as Capability Set 1 (CS-1).

This document covers requirements for five communication groups of the NNI: Call and

Bearer Control; Mobility Management; Virtual Home Environment (VHE) and Intelligent

Network (IN) Services Control; Packet Data Services and Internet Access Control; and Internetwork Security. The requirements specified in this document are non-information flow related, and they should be viewed as complementary to the information flows of

Recommendation Q.1721. They include general NNI protocol requirements, NNI functional models, NNI reference points, state models for selective functional entities, and the choice of various protocol suites.


INTEGRATED SERVICES DIGITAL NETWORK (ISDN) AND BROADBAND

INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN)

GENERIC ADDRESSING AND TRANSPORT (GAT) PROTOCOL

Summary

This Recommendation provides the protocol for Generic Addressing and Transport (GAT).

GAT is a protocol for exchanging Application Protocol Data Units (APDUs) between service


- 12 - provision points that may be located within the same network, between networks, or between a terminal and a network.

The protocol is applicable to the signalling network, and may be used in conjunction with the

Digital Subscriber Signalling System No. one (DSS1) protocol, Digital Subscriber Signalling

System No. two (DSS2) protocol, Signalling System No. seven (SS#7), and is applicable at interfaces where those protocols are applicable.

COM 11-R 236 DRAFT REVISED ITU-T RECOMMENDATION Q.950

SUPPLEMENTARY SERVICES PROTOCOLS, STRUCTURE

AND GENERAL PRINCIPLES

Summary

This Recommendation provides an overview of the Q.95x-Series of Recommendations on the

Stage 3 descriptions of ISDN Supplementary Services and the general principles on which these Stage 3 descriptions are based. The Q.95x-Series of Recommendations is structured and numbered in a similar manner to the I.25x-Series of Recommendations on Stage 1 ISDN supplementary services descriptions and the Q.8x-Series of Recommendations on Stage 2 descriptions.

The Q.95x-Series of Recommendations cover the protocol descriptions for DSS 1. An overview of the SS No. 7 protocol descriptions is provided in Recommendation Q.730 [1].

The Stage 3 protocol descriptions in the Q.95x-Series using the Facility Information Element of the Functional Protocol are based on the generic procedures established in

Recommendation Q.932 [5]. Any of the generic procedures in Recommendation Q.932 [5]

(Keypad, Feature Key Management and Functional Protocols) can be used for the control of supplementary services. The detailed functional protocol procedures are provided in the

Q.95x-Series Recommendations.

This Recommendation lists the allocated INTEGER values for operations and errors defined in Recommendation Q.932 [5] and for supplementary services defined within the Q.95x-

Series Recommendations. The individual ERROR values are complemented by a brief definition of the error characteristics.

COM 11-R 237 DRAFT NEW ITU-T RECOMMENDATION Q.932 -

AMENDMENT 1

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 1 – GENERIC PROCEDURES

FOR THE CONTROL OF ISDN SUPPLEMENTARY SERVICES

Summary

This Amendment 1 to Recommendation Q.932 (1998) is provided in order to support the

Generic Addressing and Transport protocol as defined in Recommendation Q.860 (2000).

Additionally, various ASN.1 module definitions according to Recommendation X.680/X.880 are also added and necessary updates and corrections for existing ASN.1 modules are provided.


- 13 -

COM 11-R 238 DRAFT NEW ITU-T RECOMMENDATION Q.850 - ADDENDUM 1

USAGE OF CAUSE AND LOCATION IN THE DIGITAL SUBSCRIBER

SIGNALLING SYSTEM NO.1 AND THE SIGNALLING SYSTEM NO. 7 ISDN USER

PART.

Summary

This addendum to Q.850 (05/98) specifies a new cause value introduced in annex C of

Recommendation Q.769.1, for the query on release capability in number portability.


BEARER INDEPENDENT CALL CONTROL PROTOCOL

Summary

This Recommendation describes the adaptation of the narrowband ISDN User Part (ISUP) for the support of narrowband ISDN services independent of the bearer technology and signalling message transport technology used.


APPLICATION TRANSPORT MECHANISM – BEARER INDEPENDENT CALL

CONTROL (BICC)

Summary

This Recommendation describes the extensions required for the transport of bearer related information associated with the Bearer Independent Call Control (BICC) as defined in

Recommendation Q.1901. The BICC is used to manage the call control instance that has been separated from the bearer control instance. The BICC needs to transport bearer related information between call control instances. The Application Transport Mechanism (APM, see

Recommendation Q.765) will be used for this purpose. This Recommendation specifies the

APM-user to support the transport of the bearer related information for the BICC.

COM 11-R 245 DRAFT REVISED ITU-T RECOMMENDATION Q.765

SIGNALLING SYSTEM No. 7 – APPLICATION TRANSPORT MECHANISM

Summary

This Recommendation describes the additions to the ISDN User Part (ISUP) for providing a transport mechanism used by applications requiring a bearer in conjunction with the support of the application's signalling information flow. This transport mechanism shall provide the same capabilities as the Transaction Capabilities Application Part (TCAP) provides to its users.


- 14 -


SIGNALLING SYSTEM NO.7 – ISDN USER PART GENERAL FUNCTIONS OF

MESSAGES AND SIGNALS

Summary

This addendum contains the additions to Recommendation Q.762 (12/99) in order to accommodate the needs of the revised Recommendation Q.765 (2000).


SIGNALLING SYSTEM NO.7 – ISDN USER PART FORMATS AND CODES

Summary

This addendum contains the modifications to Recommendation Q.763 (12/99) in order to accommodate the needs of the revised Recommendation Q.765 (2000).


SIGNALLING SYSTEM No. 7 – APPLICATION TRANSPORT MECHANISM –

SUPPORT OF THE GENERIC ADDRESSING AND TRANSPORT PROTOCOL

Summary

This recommendation describes the extensions required for the support of the Generic

Addressing and Transport protocol (GAT) mechanism over the public Network Nodal

Interface (NNI). This application makes use of the Application Transport Mechanism (APM) described in Recommendation Q.765 (2000) for bearer related signalling, and the Transaction

Capability (TC) for signalling involving no bearer. This recommendation specifies the respective users (i.e. APM-user, TC-user) to support signalling applications using the Generic

Addressing and Transport protocol as defined in ITU-T Recommendation Q.860.

COM 11-R 249 DRAFT NEW ITU-T RECOMMENDATION Q.2722.1 -

AMENDMENT 1

B-ISDN USER PART – NETWORK NODE INTERFACE SPECIFICATION FOR

POINT-TO-MULTIPOINT CALL/CONNECTION CONTROL

Summary

Recommendation Q.2722.1 specifies the extensions to the Broadband ISDN User Part

(B-ISUP) to support point-to-multipoint call/connection control. This amendment 1 to

Recommendation Q.2722.1 has been prepared to enable the use of the modified B-ISUP assignment procedures together with the point-to-multipoint call/connection control. This document includes the additional procedures required to support the modified B-ISUP assignment procedures. In addition it contains corrections of editorial errors identified in

Q.2722.1 since its first publication in 1996.


- 15 -

COM 11-R 250 DRAFT NEW ITU-T RECOMMENDATION Q.2766.1 -

AMENDMENT 1

SWITCHED VIRTUAL PATH CAPABILITY

Summary

Recommendation Q.2766.1 specifies extensions to the Broadband ISDN User Part (B-ISUP) protocol to support Switched Virtual Path (SVP) service in a point-to-point configuration.

This amendment 1 to Recommendation Q.2766.1 has been prepared to enable the use of the modified B-ISUP assignment procedures together with the Switched Virtual Path Capability.

This document includes the additional procedures required to support the modified B-ISUP assignment procedures.

COM 11-R 251 DRAFT REVISED ITU-T RECOMMENDATION Q.2767.1

SOFT PVC CAPABILITY

Summary

This Recommendation utilizes the normal procedures of Broadband ISDN User Part (B-ISUP) protocol in order to support soft Permanent Virtual Connections (soft PVCs) between their endpoints. The endpoints are responsible for maintaining the end-to-end circuit by setting up a new switched connection in case the existing switched connection is released or fails. Two types of soft PVC are supported: soft Permanent Virtual Path Connection (PVPC) and soft

Permanent Virtual Channel Connection (PVCC). This Recommendation contains the additional message and parameter coding, procedures, ASE descriptions, and interworking mapping tables for the support of soft PVCC and soft PVPC services.


SUPPORT OF NUMBER PORTABILITY INFORMATION ACROSS B-ISUP

Summary

This draft Recommendation provides support for transport of number portability related information across B-ISUP as a transit network.

COM 11-R 253 DRAFT REVISED ITU-T RECOMMENDATION Q.2726.4

EXTENSIONS TO THE B-ISDN USER PART –

APPLICATION GENERATED IDENTIFIERS

Summary

This Recommendation defines B-ISUP capability to transport application generated identifiers. This capability allows the transport through the B-ISDN of identifiers required and used by various distributed applications. This capability allows an originating entity (e.g., a calling party) to transmit identifiers that can be used by a peer entity.


- 16 -

COM 11-R 254 DRAFT NEW ITU-T RECOMMENDATION Q.2931 -

AMENDMENT 2 CORRIGENDUM 1

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 -

USER-NETWORK INTERFACE (UNI) LAYER 3 SPECIFICATION FOR

BASIC CALL/CONNECTION CONTROL

Summary

This corrigendum is being issued because an error has been detected in the description of the coding of the OUI fields in various DSS 2 information elements. One of these, the “ATM adaptation layer parameters” information element is contained in Q.2931 Amendment 2

(03/99). The corrigendum makes this amendment of Q.2931 consistent with a compatible correction introduced in Amendment 4/Q.2931. The corrigendum only shows the corrected text.


BROADBAND INTEGRATED SERVICES DIGITAL NETWORK (B-ISDN)

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 (DSS 2): GENERIC

IDENTIFIER TRANSPORT EXTENSION FOR SUPPORT OF BEARER

INDEPENDENT CALL CONTROL

Summary

Recommendation Q.2941.3 defines the use of DSS2 Generic identifier transport signalling capability to carry the Backbone Network Connection Identifier that correlates ATM bearer connections with Bearer Independent Call Control signalled calls. Instances of these identifiers may be carried in the Generic identifier transport information element, as defined in

Recommendation Q.2941.1.

COM 11-R 256 DRAFT NEW ITU-T RECOMMENDATION Q.2965.1 –

AMENDMENT 1

DIGITAL SUBSCRIBER SIGNALLING SYSTEM NO. 2 - SUPPORT OF QUALITY

OF SERVICE CLASSES

Summary

Recommendation Q.2965.1 (03/99) covers the support of quality of service classes in a B-

ISDN. This Amendment of Recommendation Q.2965.1 has been prepared to provide alignment with the third edition of Recommendation I.356 (2000). In particular, this amendment allows the support of explicit signalling of the I.356 QoS class 5 in addition to the capabilities already provided in Recommendation Q.2965.1 (1999).


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