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ITU-T Series X

X.1 International user classes of service in, and categories of access to, public data networks and Integrated Services Digital Networks (ISDNs)  
X.2 International data transmission services and optional user facilities in public data networks and ISDNs  
X.3 Packet assembly/disassembly facility (PAD) in a public data network  
X.4 General structure of signals of International Alphabet No. 5 code for character oriented data transmission over public data networks  
X.5 Facsimile Packet Assembly/Disassembly facility (FPAD) in a public data network  
X.6 Multicast service definition  
X.7 Technical characteristics of data transmission services  
X.8 Multi-aspect PAD (MAP) framework and service definition  
X.10 [Withdrawn] Categories of access for Data Terminal Equipment (DTE) to public data transmission services  
X.15 [Withdrawn] Definitions of terms concerning public data networks  
Withdrawn on 25.11.1988
X.20 Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for start-stop transmission services on public data networks  
X.20bis Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to asynchronous duplex V-Series modems  
X.21 Interface between Data Terminal Equipment and Data Circuit-terminating Equipment for synchronous operation on public data networks  
X.21bis Use on public data networks of Data Terminal Equipment (DTE) which is designed for interfacing to synchronous V-Series modems  
X.22 Multiplex DTE/DCE interface for user classes 3-6  
X.24 List of definitions for interchange circuits between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) on public data networks  
X.25 Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit  
X.26 Electrical characteristics for unbalanced double-current interchange circuits operating at data signalling rates nominally up to 100 kbit/s  
This Recommendation is published under alias number V.10
X.27 Electrical characteristics for balanced double-current interchange circuits operating at data signalling rates up to 10 Mbit/s  
This Recommendation is published under alias number V.11
X.28 DTE/DCE interface for a start-stop mode Data Terminal Equipment accessing the Packet Assembly/Disassembly facility (PAD) in a public data network situated in the same country  
X.29 Procedures for the exchange of control information and user data between a Packet Assembly/Disassembly (PAD) facility and a packet mode DTE or another PAD  
X.30 Support of X.21, X.21 bis and X.20 bis based Data Terminal Equipments (DTEs) by an Integrated Services Digital Network (ISDN)  
This Recommendation is also included but not published in I series under alias number I.461
X.31 Support of packet mode terminal equipment by an ISDN  
This Recommendation is also included but not published in I series under alias number I.462
X.32 Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and accessing a packet-switched public data network through a public switched telephone network or an integrated services digital network or a circuit-switched public data network  
X.33 Access to packet-switched data transmission services via frame relaying data transmission services  
X.34 Access to packet-switched data transmission services via B-ISDN  
X.35 Interface between a PSPDN and a private PSDN which is based on X.25 procedures and enhancements to define a gateway function that is provided in the PSPDN  
X.36 Interface between data terminal equipment (DTE) and data circuit-terminating equipment (DCE) for public data networks providing frame relay data transmission service by dedicated circuit  
X.37 Encapsulation in X.25 packets of various protocols including frame relay  
X.38 G3 facsimile equipment/DCE interface for G3 facsimile equipment accessing the Facsimile Packet Assembly/Disassembly facility (FPAD) in a public data network situated in the same country  
X.39 Procedures for the exchange of control information and user data between a Facsimile Packet Assembly/Disassembly (FPAD) facility and a packet mode Data Terminal Equipment (DTE) or another FPAD  
X.40 [Withdrawn] Standardization of frequency-shift modulated transmission systems for the provision of telegraph and data channels by frequency division of a group  
Withdrawn on 12.03.1993
X.42 Procedures and methods for accessing a public data network from a DTE operating under control of a generalized polling protocol  
X.45 Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks, designed for efficiency at higher speeds  
X.46 Access to FRDTS via B-ISDN  
X.48 Procedures for the provision of a basic multicast service for Data Terminal Equipments (DTEs) using Recommendation X.25  
X.49 Procedures for the provision of an extended multicast service for Data Terminal Equipments (DTEs) using Recommendation X.25  
X.50 Fundamental parameters of a multiplexing scheme for the international interface between synchronous data networks  
X.50bis Fundamental parameters of a 48-kbit/s user data signalling rate transmission scheme for the international interface between synchronous data networks  
X.51 Fundamental parameters of a multiplexing scheme for the international interface between synchronous data networks using 10-bit envelope structure  
X.51bis Fundamental parameters of a 48-kbit/s user data signalling rate transmission scheme for the international interface between synchronous data networks using 10-bit envelope structure  
X.52 Method of encoding anisochronous signals into a synchronous user bearer  
X.53 Numbering of channels on international multiplex links at 64 kbit/s  
X.54 Allocation of channels on international multiplex links at 64 kbit/s  
X.55 Interface between synchronous data networks using a 6 + 2 envelope structure and single channel per carrier (SCPC) satellite channels  
X.56 Interface between synchronous data networks using an 8 + 2 envelope structure and single channel per carrier (SCPC) satellite channels  
X.57 Method of transmitting a single lower speed data channel on a 64 kbit/s data stream  
X.58 Fundamental parameters of a multiplexing scheme for the international interface between synchronous non-switched data networks using no envelope structure  
X.60 Common channel signalling for circuit-switched data applications  
X.61 [Withdrawn] Signalling System No. 7 - Data user part  
This Recommendation is also included but not published in Q series under alias number Q.741
X.70 Terminal and transit control signalling system for start-stop services on international circuits between anisochronous data networks  
X.71 Decentralized terminal and transit control signalling system on international circuits between synchronous data networks  
X.75 Packet-switched signalling system between public networks providing data transmission services  
X.76 Network-to-network interface between public networks providing PVC and/or SVC frame relay data transmission service  
X.77 Interworking between PSPDNs via B-ISDN  
X.78 Interworking procedures between networks providing frame relay data transmission services via B-ISDN  
X.80 Interworking of interexchange signalling systems for circuit-switched data services  
X.81 Interworking between an ISDN circuit-switched and a circuit-switched public data network (CSPDN)  
X.82 Detailed arrangements for interworking between CSPDNs and PSPDNs based on Recommendation T.70  
X.84 Support of frame relay services over MPLS core networks  
X.85 IP over SDH using LAPS  
X.86 Ethernet over LAPS  
X.87 Multiple services ring based on RPR  
X.92 Hypothetical reference connections for public synchronous data networks  
X.96 Call progress signals in public data networks  
X.110 International routing principles and routing plan for Public Data Networks  
X.111 Principles for the routing of international frame relay traffic  
X.115 Definition of address translation capability in public data networks  
X.116 Address translation registration and resolution protocol  
X.121 International numbering plan for public data networks  
X.122 Numbering plan interworking for the E.164 and X.121 numbering plans  
This Recommendation is published with the double number E.166 and X.122. For more details see E.166
X.123 Mapping between escape codes and TOA/NPI for E.164/X.121 numbering plan interworking during the transition period  
X.124 Arrangements for the interworking of the E.164 and X.121 numbering plans for frame relay and ATM networks  
X.125 Procedure for the notification of the assignment of international network identification codes for public frame relay data networks and ATM networks numbered under the E.164 numbering plan  
X.130 Call processing delays in public data networks when providing international synchronous circuit-switched data services  
X.131 Call blocking in public data networks when providing international synchronous circuit-switched data services  
X.134 Portion boundaries and packet-layer reference events: Basis for defining packet-switched performance parameters  
X.135 Speed of service (delay and throughput) performance values for public data networks when providing international packet-switched services  
X.136 Accuracy and dependability performance values for public data networks when providing international packet-switched services  
X.137 Availability performance values for public data networks when providing international packet-switched services  
X.138 Measurement of performance values for public data networks when providing international packet-switched services  
X.139 Echo, drop, generator and test DTEs for measurement of performance values in public data networks when providing international packet-switched services  
X.140 General quality of service parameters for communication via public data networks  
X.141 General principles for the detection and correction of errors in public data networks  
A Corrigendum was indicated in 06/1990 for the English version.
X.142 Quality of service metrics for characterizing Frame Relay/ATM service interworking performance  
X.144 User information transfer performance parameters for public frame relay data networks  
X.145 Connection establishment and dis-engagement performance parameters for public frame relay data networks providing SVC services  
X.146 Performance objectives and quality of service classes applicable to frame relay  
X.147 Frame Relay network availability  
X.148 Procedures for the measurement of the performance of public data networks providing the international frame relay service  
X.149 Performance of IP networks when supported by public Frame Relay data networks  
X.150 Principles of maintenance testing for public data networks using Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) test loops  
X.151 Frame Relay operations and maintenance - Principles and functions  
X.160 Architecture for customer network management service for public data networks  
X.Imp160 Customer Network Management Implementors' Guide - Defects and Resolutions  
X.161 Definition of customer network management services for public data networks  
X.162 Definition of management information for customer network management service for public data networks to be used with the CNMc interface  
X.163 Definition of management information for customer network management service for public data networks to be used with the CNMe interface  
X.170 Network-network management architecture for data networks  
X.171 Network-network management services for data networks  
X.180 Administrative arrangements for international closed user groups (CUGs)  
X.181 Administrative arrangements for the provision of international permanent virtual circuits (PVCs)  
X.200 Information technology - Open Systems Interconnection - Basic Reference Model: The basic model  
X.Imp200 OSI Implementers Guide - Version 1.1  
X.207 Information technology - Open Systems Interconnection - Application layer structure  
X.208 [Withdrawn] Specification of Abstract Syntax Notation One (ASN.1)  
X.209 [Withdrawn] Specification of Basic Encoding Rules for Abstract Syntax Notation One (ASN.1)  
X.210 Information technology - Open Systems Interconnection - Basic Reference Model: Conventions for the definition of OSI services  
X.211 Information technology - Open Systems Interconnection - Physical service definition  
X.212 Information technology - Open Systems Interconnection - Data Link service definition  
X.213 Information technology Open Systems Interconnection Network service definition  
X.214 Information technology - Open Systems Interconnection -Transport service definition  
X.215 Information technology - Open Systems Interconnection - Session service definition  
X.216 Information technology - Open Systems Interconnection - Presentation service definition  
X.217 Information technology - Open Systems Interconnection - Service definition for the Association Control Service Element  
X.217bis Information technology - Open Systems Interconnection - Service definition for the Application Service Object Association Control Service Element  
X.218 Reliable Transfer: Model and service definition  
X.219 Remote Operations: Model, notation and service definition  
X.220 Use of X.200-Series protocols in CCITT applications  
X.222 Use of X.25 LAPB-compatible Data Link procedures to provide the OSI connection-mode Data Link service  
This title results from the modification of ITU-T X.222 (04/95) former title by Amendment 1 (10/96).
X.223 Use of X.25 to provide the OSI connection-mode Network service for ITU-T applications  
X.224 Information technology - Open Systems Interconnection - Protocol for providing the connection-mode transport service  
X.225 Information technology - Open Systems Interconnection - Connection-oriented Session protocol: Protocol specification  
X.226 Information technology - Open Systems Interconnection - Connection-oriented Presentation protocol: Protocol specification  
X.227 Information technology - Open Systems Interconnection - Connection-oriented protocol for the Association Control Service Element: Protocol specification  
X.227bis Information technology - Open Systems Interconnection - Connection-mode protocol for the Application Service Object Association Control Service Element  
X.228 Reliable Transfer: Protocol specification  
X.229 Remote Operations: Protocol specification  
X.233 Information technology - Protocol for providing the connectionless-mode network service: Protocol specification  
X.234 Information technology - Protocol for providing the OSI connectionless-mode transport service  
X.235 Information technology - Open Systems Interconnection - Connectionless Session protocol: Protocol specification  
X.236 Information technology - Open Systems Interconnection - Connectionless Presentation protocol: Protocol specification  
X.237 Information technology - Open Systems Interconnection - Connectionless protocol for the Association Control Service Element: Protocol specification  
X.237bis Information technology - Open Systems Interconnection - Connectionless protocol for the Application Service Object Association Control Service Element  
X.244 [Withdrawn] Procedure for the exchange of protocol identification during virtual call establishment on Packet Switched Public Data Networks  
Superseded by the more comprehensive description of protocol identifiers contained in X.263
X.245 Information technology - Open Systems Interconnection - Connection-oriented Session protocol: Protocol Implementation Conformance Statement (PICS) proforma  
X.246 Information technology - Open Systems Interconnection - Connection-oriented Presentation protocol: Protocol Implementation Conformance Statement (PICS) proforma  
X.247 Information technology - Open Systems Interconnection - Protocol specification for the Association Control Service Element: Protocol Implementation Conformance Statement (PICS) proforma  
X.248 Information technology - Open Systems Interconnection - Reliable Transfer: Protocol Implementation Conformance Statement (PICS) proforma  
X.249 Information technology - Open Systems Interconnection - Remote Operations: Protocol Implementation Conformance Statement (PICS) proforma  
X.255 Information technology - Open Systems Interconnection - Connectionless Session protocol: Protocol Implementation Conformance Statement (PICS) proforma  
X.256 Information technology - Open Systems Interconnection - Connectionless Presentation protocol: Protocol Implementation Conformance Statement (PICS) proforma  
X.257 Information technology - Open Systems Interconnection - Connectionless protocol for the Association Control Service Element: Protocol Implementation Conformance Statement (PICS) proforma  
X.260 Information technology - Framework for protocol identification and encapsulation  
X.263 Information technology - Protocol identification in the Network Layer  
X.264 Transport protocol identification mechanism  
X.272 Data compression and privacy over frame relay networks  
X.273 Information technology - Open Systems Interconnection - Network layer security protocol  
X.274 Information technology - Telecommunication and information exchange between systems - Transport layer security protocol  
X.281 Information technology - Elements of management information related to the OSI Physical Layer  
X.282 Elements of management information related to the OSI Data Link layer  
X.283 Information technology - Elements of management information related to the OSI Network layer  
X.284 Information technology - Elements of management information related to the OSI Transport layer  
X.287 Information technology - Open Systems Interconnection - Structure of management information: Managed objects for supporting upper layers  
X.290 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - General concepts  
X.291 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Abstract test suite specification  
X.292 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - The Tree and Tabular Combined Notation (TTCN)  
X.293 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Test realization  
X.294 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Requirements on test laboratories and clients for the conformance assessment process  
X.295 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Protocol profile test specification  
X.296 OSI conformance testing methodology and framework for protocol Recommendations for ITU-T applications - Implementation conformance statements  
X.300 General principles for interworking between public networks and between public networks and other networks for the provision of data transmission services  
X.301 Description of the general arrangements for call control within a subnetwork and between subnetworks for the provision of data transmission services  
X.302 Description of the general arrangements for internal network utilities within a subnetwork and intermediate utilities between subnetworks for the provision of data transmission services  
X.305 Functionalities of subnetworks relating to the support of the OSI connection-mode network service  
X.320 General arrangements for interworking between Integrated Services Digital Networks (ISDNs) for the provision of data transmission services  
X.321 General arrangements for interworking between Circuit-Switched Public Data Networks (CSPDNs) and Integrated Services Digital Networks (ISDNs) for the provision of data transmission services  
This Recommendation is also included but not published in I series under alias number I.540
X.322 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and Circuit-Switched Public Data Networks (CSPDNs) for the provision of data transmission services  
X.323 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs)  
X.324 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and public mobile systems for the provision of data transmission services  
X.325 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and Integrated Services Digital Networks (ISDNs) for the provision of data transmission services  
This Recommendation is also included but not published in I series under alias number I.550
X.326 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and Common Channel Signalling Network (CCSN)  
X.327 General arrangements for interworking between Packet-Switched Public Data Networks (PSPDNs) and private data networks for the provision of data transmission services  
X.328 General arrangements for interworking between Public Data Networks providing frame relay data transmission services and Integrated Services Digital Networks (ISDNs) for the provision of data transmission services  
X.329 General arrangements for interworking between networks providing frame relay data transmission services and B-ISDN  
X.340 General arrangements for interworking between a Packet-Switched Public Data Network (PSPDN) and the international telex network  
X.350 General interworking requirements to be met for data transmission in international public mobile satellite systems  
X.351 Special requirements to be met for Packet Assembly/Disassembly facilities (PADs) located at or in association with coast earth stations in the public mobile satellite service  
X.352 Interworking between Packet-Switched Public Data Networks and public maritime mobile satellite data transmission systems  
X.353 Routing principles for interconnecting public maritime mobile satellite data transmission systems with public data networks  
X.361 Connection of VSAT systems with Packet-Switched Public Data Networks based on X.25 procedures  
X.370 [Withdrawn] Arrangements for the transfer of internetwork management information  
X.371 General arrangements for interworking between Public Data Networks and the Internet  
X.400 Message handling services: Message handling system and service overview  
X.Imp400 MHS Implementors' Guide  
X.402 Information technology - Message Handling Systems (MHS): Overall architecture  
X.403 [Withdrawn] Message handling systems: conformance testing  
This Recommendation was withdrawn because conformance testing concepts and methods defined in it were related to the 1984 MHS Recommendations and were not aligned with either the first or second versions of conformance testing standards. ITU-T X.480 (1992) refers to the 1988 "Blue Book" MHS Recommendations and was better aligned with the testing standards
X.404 Information technology - Message Handling Systems (MHS): MHS routing - Guide for messaging systems managers  
X.407 [Withdrawn] Message handling systems: Abstract service definition conventions  
This Recommendation was not referenced from any Recommendation and some of its technical content was contained in ITU-T X.402 (1995)
X.408 Message handling systems: Encoded information type conversion rules  
X.410 [Withdrawn] Message handling systems: remote operations and reliable transfer server  
Withdrawn on 25.11.1988
X.411 Information technology - Message Handling Systems (MHS): Message Transfer System: Abstract Service Definition and Procedures  
X.412 Information technology - Message Handling Systems (MHS): MHS routing  
X.413 Information technology - Message Handling Systems (MHS): Message store - Abstract service definition  
X.419 Information technology - Message Handling Systems (MHS): Protocol specifications  
X.420 Information technology - Message Handling Systems (MHS): Interpersonal Messaging System  
X.421 Message handling systems: COMFAX use of MHS  
X.435 Information technology - Message Handling Systems (MHS): Electronic data interchange messaging system  
X.440 Message handling systems: Voice messaging system  
X.445 Asynchronous protocol specification - Provision of OSI connection mode network service over the telephone network  
X.446 Common messaging call API  
X.460 Information technology - Message Handling Systems (MHS) Management: Model and architecture  
X.462 Information technology - Message Handling Systems (MHS) Management: Logging information  
X.467 Information technology - Message Handling Systems (MHS) Management: Message Transfer Agent management  
X.480 [Withdrawn] Message handling systems and directory services - conformance testing  
Withdrawn as it references documents that have been deleted by the ITU
X.481 Message handling systems - P2 protocol PICS proforma  
X.482 Message handling systems - P1 Protocol PICS proforma  
X.483 Message handling systems - P3 protocol PICS proforma  
X.484 Message Handling Systems - P7 protocol PICS proforma  
X.485 Message handling systems: Voice messaging system Protocol Implementation Conformance Statement (PICS) proforma  
X.486 Message Handling Systems - Pedi protocol PICS proforma  
X.487 Message handling systems - IPM-MS attributes PICS proforma  
X.488 Message handling systems - EDI-MS attributes PICS proforma  
X.500 Information technology - Open Systems Interconnection - The Directory: Overview of concepts, models and services  
X.Imp500 Directory Implementors' Guide  
X.501 Information technology - Open Systems Interconnection - The Directory: Models  
X.509 Information technology - Open Systems Interconnection - The Directory: Public-key and attribute certificate frameworks  
X.511 Information technology - Open Systems Interconnection - The Directory: Abstract service definition  
X.518 Information technology - Open Systems Interconnection - The Directory: Procedures for distributed operation  
X.519 Information technology - Open Systems Interconnection - The Directory: Protocol specifications  
X.520 Information technology - Open Systems Interconnection - The Directory: Selected attribute types  
X.521 Information technology - Open Systems Interconnection - The Directory: Selected object classes  
X.525 Information technology - Open Systems Interconnection - The Directory: Replication  
X.530 Information technology - Open Systems Interconnection - The Directory: Use of systems management for administration of the Directory  
X.581 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Directory Access Protocol - Protocol Implementation Conformance Statement (PICS) proforma  
X.582 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Directory System Protocol - Protocol Implementation Conformance Statement (PICS) proforma  
X.583 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Protocol Implementation Conformance Statement (PICS) proforma for the Directory Access Protocol  
X.584 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Protocol Implementation Conformance Statement (PICS) proforma for the Directory System Protocol  
X.585 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Protocol Implementation Conformance Statement (PICS) proforma for the Directory Operational Binding Management Protocol  
X.586 [Withdrawn] Information technology - Open Systems Interconnection - The Directory: Protocol Implementation Conformance Statement (PICS) proforma for the Directory Information Shadowing Protocol  
X.601 Multi-peer communications framework  
X.602 Information technology - Group management protocol  
X.603 Information technology - Relayed multicast protocol: Framework  
X.603.1 Information technology - Relayed multicast protocol: Specification for simplex group applications  
X.605 Information technology - Enhanced Communications Transport Service definition  
X.606 Information technology - Enhanced Communications Transport Protocol: Specification of simplex multicast transport  
X.606.1 Information technology - Enhanced Communications Transport Protocol: Specification of QoS management for simplex multicast transport  
X.607 Information technology - Enhanced communications transport protocol specification: Duplex multicast transport  
X.608 Information technology - Enhanced communications transport protocol specification: N-plex multicast transport  
X.610 Provision and support of the OSI connection-mode Network service  
X.612 Information technology - Provision of the OSI connection-mode network service by packet-mode terminal equipment connected to an Integrated Services Digital Network (ISDN)  
X.613 Information technology - Use of X.25 Packet Layer Protocol in conjunction with X.21/X.21 bis to provide the OSI connection-mode Network service  
X.614 Information technology - Use of X.25 Packet Layer Protocol to provide the OSI connection-mode Network service over the telephone network  
X.622 Information technology - Protocol for providing the connectionless-mode Network service: Provision of the underlying service by an X.25 Subnetwork  
X.623 Information technology - Protocol for providing the connectionless-mode Network service: Provision of the underlying service by a subnetwork that provides the OSI Data Link service  
X.625 Information technology - Protocol for providing the connectionless-mode Network service: Provision of the underlying service by ISDN circuit-switched B-channels  
X.630 Efficient Open Systems Interconnection (OSI) operations  
X.633 Information technology - Open Systems Interconnection - Network Fast Byte Protocol  
X.634 Information technology - Open Systems Interconnection - Transport Fast Byte Protocol  
X.637 Basic connection-oriented common upper layer requirements  
X.638 Minimal OSI facilities to support basic communications applications  
X.639 Basic connection-oriented requirements for ROSE-based profiles  
X.641 Information technology - Quality of service: framework  
X.642 Information technology - Quality of service - Guide to methods and mechanisms  
X.650 Information technology - Open Systems Interconnection - Basic Reference Model: Naming and addressing  
X.660 Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: General procedures and top arcs of the ASN.1 Object Identifier tree  
X.662 Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: Registration of object identifier arcs beneath the top-level arc jointly administered by ISO and ITU-T  
X.665 Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: Registration of application processes and application entities  
X.666 Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: Joint ISO and ITU-T registration of international organizations  
X.667 Information technology - Open Systems Interconnection - Procedures for the operation of OSI Registration Authorities: Generation and registration of Universally Unique Identifiers (UUIDs) and their use as ASN.1 object identifier components  
X.669 Procedures for ITU-T registration of identified organizations  
X.670 Use of registration agents to register names subordinate to country names in the X.660 RH-name-tree  
X.671 Procedures for a Registration Authority operating on behalf of countries to register organization names subordinate to country names in the X.660 RH-name-tree  
X.680 Information technology - Abstract Syntax Notation One (ASN.1): Specification of basic notation  
X.681 Information technology - Abstract Syntax Notation One (ASN.1): Information object specification  
X.682 Information technology - Abstract Syntax Notation One (ASN.1): Constraint specification  
X.683 Information technology - Abstract Syntax Notation One (ASN.1): Parameterization of ASN.1 specifications  
X.690 Information technology - ASN.1 encoding rules: Specification of Basic Encoding Rules (BER), Canonical Encoding Rules (CER) and Distinguished Encoding Rules (DER)  
X.691 Information technology - ASN.1 encoding rules: Specification of Packed Encoding Rules (PER)  
X.692 Information technology - ASN.1 encoding rules: Specification of Encoding Control Notation (ECN)  
X.693 Information technology - ASN.1 encoding rules: XML Encoding Rules (XER)  
X.694 Information technology - ASN.1 encoding rules: Mapping W3C XML schema definitions into ASN.1  
X.695 Information technology - ASN.1 encoding rules: Registration and application of PER encoding instructions  
X.700 Management framework for Open Systems Interconnection (OSI) for CCITT applications  
X.Imp700 X.700-Series - OSI Systems Management Implementors' Guide  
X.701 Information technology - Open Systems Interconnection - Systems management overview  
X.702 Information technology - Open Systems Interconnection - Application context for systems management with transaction processing  
X.703 Information technology - Open Distributed Management Architecture  
X.710 Information technology - Open Systems Interconnection - Common Management Information service  
X.711 Information technology - Open Systems Interconnection - Common Management Information Protocol: Specification  
X.712 Information technology - Open Systems Interconnection - Common management information protocol: Protocol Implementation Conformance Statement (PICS) proforma  
X.720 Information technology - Open Systems Interconnection - Structure of management information: Management information model  
X.721 Information technology - Open Systems Interconnection - Structure of management information: Definition of management information  
X.722 Information technology - Open Systems Interconnection - Structure of management information: Guidelines for the definition of managed objects  
X.723 Information technology - Open Systems Interconnection - Structure of management information: Generic management information  
X.724 Information technology - Open Systems Interconnection - Structure of management information: Requirements and guidelines for implementation conformance statement proformas associated with OSI management  
X.725 Information technology - Open Systems Interconnection - Structure of management information: General Relationship Model  
X.727 Information technology - Open Systems Interconnection - Structure of management information: Systems management application layer managed objects  
X.727 Information technology - Open Systems Interconnection - Structure of management information: Systems management application layer managed objects  
X.730 Information technology - Open Systems Interconnection - Systems Management: Object management function  
X.731 Information technology - Open Systems Interconnection - Systems management: State management function  
X.732 Information technology - Open Systems Interconnection - Systems Management: Attributes for representing relationships  
X.733 Information technology - Open Systems Interconnection - Systems Management: Alarm reporting function  
X.734 Information technology - Open Systems Interconnection - Systems Management: Event report management function  
X.735 Information technology - Open Systems Interconnection - Systems Management: Log control function  
X.736 Information technology - Open Systems Interconnection - Systems Management: Security alarm reporting function  
X.737 Information technology - Open Systems Interconnection - Systems Management: Confidence and diagnostic test categories  
X.738 Information technology - Open Systems Interconnection - Systems management: Summarization function  
X.739 Information technology - Open Systems Interconnection - Systems Management: Metric objects and attributes  
X.740 Information technology - Open Systems Interconnection - Systems Management: Security audit trail function  
X.741 Information technology - Open Systems Interconnection - Systems management: Objects and attributes for access control  
X.742 Information technology - Open Systems Interconnection - Systems management: Usage metering function for accounting purposes  
X.743 Information technology - Open Systems Interconnection - Systems Management: Time Management Function  
X.744 Information technology - Open Systems Interconnection - Systems Management: Software management function  
X.744.1 CORBA-based TMN software management service  
X.745 Information technology - Open Systems Interconnection - Systems Management: Test management function  
X.746 Information technology - Open Systems Interconnection - Systems Management: Scheduling function  
X.748 Information technology - Open Systems Interconnection - Systems Management: Response Time Monitoring Function  
X.749 Information technology - Open Systems Interconnection - Systems Management: Management domain and management policy management function  
X.750 Information technology - Open Systems Interconnection - Systems Management: Management knowledge management function  
X.751 Information technology - Open Systems Interconnection - Systems Management: Changeover function  
X.753 Information technology - Open Systems Interconnection - Systems management: Command Sequencer for Systems Management  
X.754 Enhanced Event Control Function  
X.770 ODMA notification dispatch function  
X.780 TMN guidelines for defining CORBA managed objects  
X.780.1 TMN guidelines for defining coarse-grained CORBA managed object interfaces  
X.780.2 TMN guidelines for defining service-oriented CORBA managed objects and façade objects  
X.781 Requirements and guidelines for Implementation Conformance Statements proformas associated with CORBA-based systems  
X.790 Trouble management function for ITU-T applications  
X.791 Profile for trouble management function for ITU-T applications  
X.792 Configuration audit support function for ITU-T applications  
X.800 Security architecture for Open Systems Interconnection for CCITT applications  
X.802 Information technology - Lower layers security model  
X.803 Information technology - Open Systems Interconnection - Upper layers security model  
X.805 Security architecture for systems providing end-to-end communications  
X.810 Information technology - Open Systems Interconnection - Security frameworks for open systems: Overview  
X.811 Information technology - Open Systems Interconnection - Security frameworks for open systems: Authentication framework  
X.812 Information technology - Open Systems Interconnection - Security frameworks for open systems: Access control framework  
X.813 Information technology - Open Systems Interconnection - Security frameworks for open systems: Non-repudiation framework  
X.814 Information technology - Open Systems Interconnection - Security frameworks for open systems: Confidentiality framework  
X.815 Information technology - Open Systems Interconnection - Security frameworks for open systems: Integrity framework  
X.816 Information technology - Open Systems Interconnection - Security frameworks for open systems: Security audit and alarms framework  
X.830 Information technology - Open Systems Interconnection - Generic upper layers security: Overview, models and notation  
X.831 Information technology - Open Systems Interconnection - Generic upper layers security: Security Exchange Service Element (SESE) service definition  
X.832 Information technology - Open Systems Interconnection - Generic upper layers security: Security Exchange Service Element (SESE) protocol specification  
X.833 Information technology - Open Systems Interconnection - Generic upper layers security: Protecting transfer syntax specification  
X.834 Information technology - Open Systems Interconnection - Generic Upper Layers Security: Security Exchange Service Element (SESE) Protocol Implementation Conformance Statement (PICS) proforma  
X.835 Information technology - Open Systems Interconnection - Generic Upper Layers Security: Protecting transfer syntax Protocol Implementation Conformance Statement (PICS) proforma  
X.841 Information technology - Security techniques - Security information objects for access control  
X.842 Information technology - Security techniques - Guidelines for the use and management of trusted third party services  
X.843 Information technology - Security techniques - Specification of TTP services to support the application of digital signatures  
X.851 Information technology - Open Systems Interconnection - Service definition for the Commitment, Concurrency and Recovery service element  
X.852 Information technology - Open Systems Interconnection - Protocol for the Commitment, Concurrency and Recovery service element: Protocol specification  
X.853 Information technology - Open Systems Interconnection - Protocol for the Commitment, Concurrency and Recovery service element: Protocol Implementation Conformance Statement (PICS) proforma  
X.860 Open Systems Interconnection - Distributed Transaction Processing: Model  
X.861 Open Systems Interconnection - Distributed Transaction Processing: Service definition  
X.862 Open Systems Interconnection - Distributed Transaction Processing: Protocol specification  
X.863 Information technology - Open Systems Interconnection - Distributed Transaction Processing: Protocol Implementation Conformance Statement (PICS) proforma  
X.880 Information technology - Remote Operations: Concepts, model and notation  
X.881 Information technology - Remote Operations: OSI realizations - Remote Operations Service Element (ROSE) service definition  
X.882 Information technology - Remote Operations: OSI realizations - Remote Operations Service Element (ROSE) protocol specification  
X.891 Information technology - Generic applications of ASN.1: Fast infoset  
X.892 Information technology - Generic applications of ASN.1: Fast Web Services  
X.893 Information technology - Generic applications of ASN.1: Fast infoset security  
X.901 Information technology - Open Distributed Processing - Reference Model: Overview  
X.902 Information technology - Open Distributed Processing - Reference Model: Foundations  
X.903 Information technology - Open Distributed Processing - Reference Model: Architecture  
X.904 Information technology - Open Distributed Processing - Reference Model: Architectural Semantics  
X.910 Information technology - Open Distributed Processing - Naming framework  
X.911 Information technology - Open distributed processing - Reference model - Enterprise language  
X.920 Information technology - Open Distributed Processing - Interface Definition Language  
X.930 Information technology - Open Distributed Processing - Interface references and binding  
X.931 Information technology - Open Distributed Processing - Protocol support for computational interactions  
X.950 Information technology - Open Distributed Processing - Trading Function: Specification  
X.952 Information technology - Open Distributed Processing - Trading function: Provision of trading function using OSI Directory service  
X.960 Information technology - Open Distributed Processing - Type repository function  
X.1035 Password-authenticated key exchange (PAK) protocol  
X.1051 Information security management system - Requirements for telecommunications (ISMS-T)  
X.1081 The telebiometric multimodal model - A framework for the specification of security and safety aspects of telebiometrics  
X.1111 Framework for security technologies for home network  
X.1121 Framework of security technologies for mobile end-to-end data communications  
X.1122 Guideline for implementing secure mobile systems based on PKI  
X.1141 Security Assertion Markup Language (SAML 2.0)  
X.1142 eXtensible Access Control Markup Language (XACML 2.0)  
X.ImpOSI OSI Implementers Guide - Version 1.1  

 


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