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International Calling Rules

International Calling Rules, Total:500 items.

In the international standard classification, International Calling Rules involves: Radiocommunications, Telecommunication systems, Telecommunication services. Applications, Telecommunications in general, Vocabularies, Electrical engineering in general, Telecommunication terminal equipment, Interface and interconnection equipment, Quality, Languages used in information technology, Power transmission and distribution networks, Standardization. General rules, Applications of information technology, Information sciences. Publishing, Finances. Banking. Monetary systems. Insurance, Integrated Services Digital Network (ISDN), Rotating machinery, Company organization and management, Technical product documentation, Farming and forestry, Fluid storage devices, Character sets and information coding, Textile fibres.

International Telecommunication Union (ITU), International Calling Rules

• ITU-T D.150-1999 New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 21 pp
• ITU-T E.110 FRENCH-1993 ORGANIZATION OF THE INTERNATIONAL TELEPHONE NETWORK
• ITU-T D.140 SUPP 1-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3; Supplement 1
• ITU-T D.140 SUPP 2-2003 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 2: Updated teledensities and indicative target set
• ITU-T E.120 FRENCH-1993 INSTRUCTIONS FOR USERS OF THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.120 SPANISH-1993 Instructions for Users of the International Telephone Service
• ITU-T D.140 SUPP 3-2004 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 3: Updated teledensities and indicative target set
• ITU-T D.151-1989 Old System for Accounting in International Telephony - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T HDBK IIT-1993 Instructions for the International Telephone Service
• ITU-T E.110 SPANISH-1993 Organization of the International Telephone Network
• ITU-T M.565-1989 Access Points for International Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 4 pp
• ITU-T E.141-1993 Instructions for Operators on the Operator-Assisted International Telephone Service - Instructions for the International Telephone Service
• ITU-T M.565 SPANISH-1988 ACCESS POINTS FOR INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T D.171-1989 Adjustments and Refunds in the International Telephone Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T D.140 AMD 2-2003 Accounting Rate Principles for the International Telephone Service Amendment 2: Revision to Annex E: Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T D.115 RUSSIAN-2004 Tariff principles and accounting for the International Freephone Service (IFS)
• ITU-T D.150 CHINESE-1999 New system for accounting in international telephony
• ITU-T D.150 RUSSIAN-1999 New system for accounting in international telephony
• ITU-T D.150 ARABIC-1999 New system for accounting in international telephony
• ITU-T M.565 FRENCH-1988 ACCESS POINTS FOR INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T E.111-1993 Extension of International Telephone Services
• ITU-T E.111 FRENCH-1993 EXTENSION OF INTERNATIONAL TELEPHONE SERVICES
• ITU-T E.111 SPANISH-1993 EXTENSION OF INTERNATIONAL TELEPHONE SERVICES
• ITU-T D.140 SPANISH-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3
• ITU-T D.140 FRENCH-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3
• ITU-T Q.5-1989 Advantages of Semi-Automatic Service in the International Telephone Service - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements (Study Group XI) 1 pp
• ITU-T M.250-1989 Use of CCITT Man-Machine Language (MML) for Maintenance - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T D.150 SPANISH-1999 New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 21 pp
• ITU-T D.150 FRENCH-1999 New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 21 pp
• ITU-T D.178-1993 Monthly Accounts for Semi-Automatic Telephone Calls (Ordinary and Urgent Calls with or without Special Facilities) - Charging and Accounting in International Telecommunication Services - Drawing up and Exchange of International Telephone and Telex Account
• ITU-T M.70 FRENCH-1988 GUIDING PRINCIPLES ON THE GENERAL MAINTENANCE ORGANIZATION FOR TELEPHONE - TYPE INTERNATIONAL CIRCUITS
• ITU-T M.70 SPANISH-1988 GUIDING PRINCIPLES ON THE GENERAL MAINTENANCE ORGANIZATION FOR TELEPHONE - TYPE INTERNATIONAL CIRCUITS
• ITU-T D.151-1993 OLD SYSTEM FOR ACCOUNTING IN INTERNATIONAL TELEPHONY
• ITU-T D.151 FRENCH-1993 OLD SYSTEM FOR ACCOUNTING IN INTERNATIONAL TELEPHONY
• ITU-T D.151 SPANISH-1993 OLD SYSTEM FOR ACCOUNTING IN INTERNATIONAL TELEPHONY
• ITU-T E.125-1984 Inquiries among users of the international telephone service
• ITU-T D.15-1993 GENERAL CHARGING AND ACCOUNTING PRINCIPLES FOR NON-VOICE SERVICES PROVIDED BY INTERWORKING BETWEEN PUBLIC DATA NETWORKS
• ITU-T E.251-1988 Old system for accounting in international telephony
• ITU-T M.70-1989 Guiding Principles on the General Maintenance Organization for Telephone-Type International Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T D.115 FRENCH-2004 Tariff principles and accounting for the International Freephone Service (IFS) SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Study Group 3
• ITU-T D.115 SPANISH-2004 Tariff principles and accounting for the International Freephone Service (IFS) SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Study Group 3
• ITU-T G.165-1993 Echo Cancellers Study Group XV; 31 PP
• ITU-T Q.11-1989 Numbering Plan for the International Telephone Service - General Recommendations on Telephone Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 8 pp
• ITU-T E.105 FRENCH-1992 International Telephone Service (Study Group I) 8 pp
• ITU-T E.105 SPANISH-1992 International Telephone Service (Study Group I) 8 pp
• ITU-T E.100 SPANISH-1993 DEFINITIONS OF TERMS USED IN INTERNATIONAL TELEPHONE OPERATION
• ITU-T G.172 FRENCH-1993 TRANSMISSION PLAN ASPECTS OF INTERNATIONAL CONFERENCE CALLS
• ITU-T G.172 SPANISH-1993 TRANSMISSION PLAN ASPECTS OF INTERNATIONAL CONFERENCE CALLS
• ITU-T M.605-1989 Routine Maintenance Schedule for International Public Telephony Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 9 pp
• ITU-T D.140 SUPP 1 SPANISH-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3; Supplement 1
• ITU-T D.140 SUPP 1 FRENCH-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3; Supplement 1
• ITU-T M.560-1989 International Telephone Circuits - Principles, Definitions and Relative Transmission Levels - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 4 pp
• ITU-T M.580-1989 Setting up and Lining up an International Circuit for Public Telephony - - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 15 pp
• ITU-T D.155 FRENCH-1996 Guiding Principles Governing the Apportionment of Accounting Rates in Intercontinental Telephone Relations; Series D General Tariff Principles; General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T D.155 SPANISH-1996 Guiding Principles Governing the Apportionment of Accounting Rates in Intercontinental Telephone Relations; Series D General Tariff Principles; General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T M.1230 FRENCH-1996 Method to Improve the Management of Operations and Maintenance Processes in the International Telephone Network - Series M: Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits; International Public T
• ITU-T M.1230 SPANISH-1996 Method to Improve the Management of Operations and Maintenance Processes in the International Telephone Network - Series M: Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits; International Public T
• ITU-T E.401-1993 STATISTICS FOR THE INTERNATIONAL TELEPHONE SERVICE ( NUMBER OF CIRCUITS IN OPERATION AND VOLUME OF TRAFFIC )
• ITU-T E.401 FRENCH-1993 STATISTICS FOR THE INTERNATIONAL TELEPHONE SERVICE ( NUMBER OF CIRCUITS IN OPERATION AND VOLUME OF TRAFFIC )
• ITU-T E.401 SPANISH-1993 STATISTICS FOR THE INTERNATIONAL TELEPHONE SERVICE ( NUMBER OF CIRCUITS IN OPERATION AND VOLUME OF TRAFFIC )
• ITU-T E.141 FRENCH-1993 Instructions for Operators on the Operator-Assisted International Telephone Service - Instructions for the International Telephone Service
• ITU-T E.141 SPANISH-1993 Instructions for Operators on the Operator-Assisted International Telephone Service - Instructions for the International Telephone Service
• ITU-T D.115-2004 Tariff principles and accounting for the International Freephone Service (IFS) SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Study Group 3
• ITU-T M.710-1989 General Maintenance Organization for the International Automatic and Semi-Automatic Telephone Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 8 pp
• ITU-T E.105-1992 International Telephone Service (Study Group I) 8 pp
• ITU-T E.152-2006 International freephone service Study Group 2
• ITU-T D.171-1988 Adjustments and refunds in the international telephone service
• ITU-T D.171 FRENCH-1993 ADJUSTMENTS AND REFUNDS IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T D.171 SPANISH-1993 ADJUSTMENTS AND REFUNDS IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T G.192-1996 A Common Digital Parallel Interface for Speech Standardisation Activities - General Characteristics of International Telephone Connections and International Telephone Circuits Study Group 15
• ITU-T E.401-1988 Statistics for the international telephone service (number of circuits in operation and volume of traffic)
• ITU-T G.451 FRENCH-1993 USE OF RADIO LINKS IN INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T G.451 SPANISH-1993 USE OF RADIO LINKS IN INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T M.580-1988 SETTING UP AND LINING UP AN INTERNATIONAL CIRCUIT FOR PUBLIC TELEPHONY
• ITU-T D.140 AMD 2 SPANISH-2003 Accounting Rate Principles for the International Telephone Service Amendment 2: Revision to Annex E: Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T D.140 AMD 1 SPANISH-2002 Accounting Rate Principles for the International Telephone Service Amendment 1: New Appendix to Annex C: Guidelines Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group
• ITU-T D.140 AMD 2 FRENCH-2003 Accounting Rate Principles for the International Telephone Service Amendment 2: Revision to Annex E: Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T D.140 AMD 1 FRENCH-2002 Accounting Rate Principles for the International Telephone Service Amendment 1: New Appendix to Annex C: Guidelines Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group
• ITU-T G.451-1988 Use of radio links in international telephone circuits
• ITU-T D.106-1989 Introduction of Reduced Rates During Periods of Light Traffic in the International Telephone Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T M.729-1989 Organization of the Maintenance of International Public Switched Telephone Circuits Used for Data Transmission - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T G.115-1996 MEAN ACTIVE SPEECH LEVEL FOR ANNOUNCEMENTS AND SPEECH SYNTHESIS SYSTEMS Study Group 12
• ITU-T E.152 FRENCH-2006 International freephone service Study Group 2
• ITU-T E.152 SPANISH-2006 International freephone service Study Group 2
• ITU-T G.192 FRENCH-1996 A Common Digital Parallel Interface for Speech Standardisation Activities - General Characteristics of International Telephone Connections and International Telephone Circuits Study Group 15
• ITU-T G.192 SPANISH-1996 A Common Digital Parallel Interface for Speech Standardisation Activities - General Characteristics of International Telephone Connections and International Telephone Circuits Study Group 15
• ITU-T M.585-1989 Bringing an International Digital Circuit into Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T D.177-1989 Adjustment of Charges and Refunds in the International Telex Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services Study Group III; 2 pp
• ITU-T G.136-1999 Application Rules for Automatic Control Devices - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain Formed by the International Circuits and
• ITU-T D.140 SUPP 3 SPANISH-2004 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 3: Updated teledensities and indicative target set
• ITU-T D.140 SUPP 2 SPANISH-2003 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 2: Updated teledensities and indicative target set
• ITU-T D.140 SUPP 3 FRENCH-2004 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 3: Updated teledensities and indicative target set
• ITU-T D.140 SUPP 2 FRENCH-2003 Accounting rate principles for the international telephone service; SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service; Supplement 2: Updated teledensities and indicative target set
• ITU-T E.123 NOTE-2008 Notation for national and international telephone numbers e-mail addresses and Web addresses
• ITU-T G.451-1993 USE OF RADIO LINKS IN INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T M.605-1988 ROUTINE MAINTENANCE SCHEDULE FOR INTERNATIONAL PUBLIC TELEPHONY CIRCUITS
• ITU-T M.605 FRENCH-1988 ROUTINE MAINTENANCE SCHEDULE FOR INTERNATIONAL PUBLIC TELEPHONY CIRCUITS
• ITU-T M.605 SPANISH-1988 ROUTINE MAINTENANCE SCHEDULE FOR INTERNATIONAL PUBLIC TELEPHONY CIRCUITS
• ITU-T E.154-1998 International Shared Cost Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study
• ITU-T E.155 AMD 1-2001 International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Operation of International Telephone Services Study Group 2
• ITU-T E.155-1998 International Premium Rate Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Stud
• ITU-T E.155 AMD 1 SPANISH-2001 International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Operation of International Telephone Services Study Group 2
• ITU-T E.155 AMD 1 FRENCH-2001 International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Operation of International Telephone Services Study Group 2
• ITU-T D.140 AMD 3-2003 Accounting Rate Principles for the International Telephone Service Amendment 3: Revised Annex A Guidelines for the cost elements to be taken into account when determining accounting rates and accounting rate shares for the international telephone service
• ITU-T M.726-1989 Maintenance Organization for the Wholly Digital International Automatic and Semi-Automatic Telephone Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T E.169.1-2001 Application of Recommendation E.164 Numbering Plan for Universal International Freephone Numbers for International Freephone Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Number
• ITU-T M.251 FRENCH-1988 Maintenance Functions to Be Implemented in CCITT-MML - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 29 pp
• ITU-T M.251 SPANISH-1988 Maintenance Functions to Be Implemented in CCITT-MML - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 29 pp
• ITU-T D.116 FRENCH-2004 Charging and Accounting Principles Relating to the Home Country Direct Telephone Service - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T D.116 SPANISH-2004 Charging and Accounting Principles Relating to the Home Country Direct Telephone Service - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T F.108-1988 Operating rules for international phototelegraph calls to multiple destinations
• ITU-T SERIES G.100 SUPP 29-1993 Planning of Mixed Ananlogue - Digital Circuits (Chains, Connections) - Transmission Systems and Media - General Characteristics of International Telephone Connections and International Telephone Circuits (Supplement 29)
• ITU-T E.855-1993 CONNECTION INTEGRITY OBJECTIVE FOR INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.855 FRENCH-1993 CONNECTION INTEGRITY OBJECTIVE FOR INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.543-1993 GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES
• ITU-T E.845-1988 Connection accessibility objective for the international telephone service
• ITU-T E.855-1988 Connection integrity objective for the international telephone service
• ITU-T D.171-1993 Adjustments and Refunds in the International Telephone Service
• ITU-T E.100-1993 Definitions of Terms Used in International Telephone Operation
• ITU-T E.543-1988 Grades of service in digital international telephone exchanges
• ITU-T D.120 FRENCH-1996 Charging and Accounting Principles for the International Telecommunication Charge Card Service - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T D.120 SPANISH-1996 Charging and Accounting Principles for the International Telecommunication Charge Card Service - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T D.120-1996 Charging and Accounting Principles for the International Telecommunication Charge Card Service - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T M.675-1989 Lining up and Maintaining International Demand Assignment Circuits (Spade) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 6 pp
• ITU-T F.1-1998 Operational Provisions for the International Public Telegram Service - Series F: Non-Telephone Telecommunication Services - Telegraph Service - Operating Methods for the International Public Telegram Service Study Group 2; 65 pp
• ITU-T M.1030-1989 Characteristics of Ordinary Quality International Leased Circuits Forming Part of Private Switched Telephone Networks - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network
• ITU-T G.117-1996 TRANSMISSION ASPECTS OF UNBALANCE ABOUT EARTH Study Group 12
• ITU-T D.85-1988 Charging for international phototelegraph calls to multiple destinations
• ITU-T G.411-1993 USE OF RADIO - RELAY SYSTEMS FOR INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T M.580 SPANISH-1988 SETTING UP AND LINING UP AN INTERNATIONAL CIRCUIT FOR PUBLIC TELEPHONY
• ITU-R F.335-2-1970 (WITHDRAWN) Use of Radio Links in International Telephone Circuits - Section 3B - Radiotelephony
• ITU-T FASCICLE IV.1 General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits - Recommendations M.10 - M.782
• ITU-T E.155-2001 (Pre-published) International Premium Rate Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation -Operation of International Telephone Services
• ITU-T G.411 FRENCH-1993 USE OF RADIO - RELAY SYSTEMS FOR INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T G.411 SPANISH-1993 USE OF RADIO - RELAY SYSTEMS FOR INTERNATIONAL TELEPHONE CIRCUITS
• ITU-T E.169-2002 Application of Recommendation E.164 numbering plan for universal international numbers for international telecommunications services using country codes for global services SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN
• ITU-T D.155-1996 Guiding Principles Governing the Apportionment of Accounting Rates in Intercontinental Telephone Relations; Series D General Tariff Principles; General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 10 pp
• ITU-T G.174-1994 Transmission Performance Objectives for Terrestrial Digital Wireless Systems Using Portable Terminals to Access the PSTN - General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 17 pp
• ITU-T G.227-1989 Conventional Telephone Signal - International Analogue Carrier Systems (Study Group XV) 3 pp
• ITU-T E.123 NOTE FRENCH-2008 Notation for national and international telephone numbers e-mail addresses and Web addresses
• ITU-T E.123 AMD 1-2008 Notation for national and international telephone numbers, e-mail addresses and Web addresses Amendment 1 (Study Group 2)
• ITU-T E.845-1993 CONNECTION ACCESSIBILITY OBJECTIVE FOR THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.845 FRENCH-1993 CONNECTION ACCESSIBILITY OBJECTIVE FOR THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.845 SPANISH-1993 CONNECTION ACCESSIBILITY OBJECTIVE FOR THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.543 FRENCH-1993 GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES
• ITU-T E.420-1993 CHECKING THE QUALITY OF THE INTERNATIONAL TELEPHONE SERVICE – GENERAL CONSIDERATIONS
• ITU-T E.420 FRENCH-1993 CHECKING THE QUALITY OF THE INTERNATIONAL TELEPHONE SERVICE GENERAL CONSIDERATIONS
• ITU-T E.420 SPANISH-1993 CHECKING THE QUALITY OF THE INTERNATIONAL TELEPHONE SERVICE GENERAL CONSIDERATIONS
• ITU-T E.543 SPANISH-1993 GRADES OF SERVICE IN DIGITAL INTERNATIONAL TELEPHONE EXCHANGES
• ITU-T E.122-1993 Measures to Reduce Customer Difficulties in the International Telephone Service
• ITU-T E.169.1 FRENCH-2001 Application of Recommendation E.164 Numbering Plan for Universal International Freephone Numbers for International Freephone Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Number
• ITU-T E.169.1 SPANISH-2001 Application of Recommendation E.164 Numbering Plan for Universal International Freephone Numbers for International Freephone Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Number
• ITU-T M.1230-1996 Method to Improve the Management of Operations and Maintenance Processes in the International Telephone Network - Series M: Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits; International Public T
• ITU-T G.451-1989 Use of Radio Links in International Telephone Circuits - International Analogue Carrier Systems (Study Group XV) 3 pp
• ITU-T SERIES G SUPP 29-1993 Planning of Mixed Ananlogue - Digital Circuits (Chains, Connections) - Transmission Systems and Media - General Characteristics of International Telephone Connections and International Telephone Circuits Supplement 29
• ITU-T D.73 (REV 1)-1992 General Tariff and International Accounting Principles for Interworking between the International Bureaufax and Telefax Services (Study Group III) 5 pp
• ITU-T D.100-1989 Charging for International Calls in Manual or Semi-Automatic Operating - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T E.110-1988 Organization of the International Telephone Network - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 1 pp
• ITU-T E.172-1992 ISDN Routing Plan - Telephone Network and ISDN; Operation Numbering Routing and Mobile Service (Study Group II) 21 pp
• ITU-T Z.301 FRENCH-1988 INTRODUCTION TO THE CCITT MAN-MACHINE LANGUAGE
• ITU-T Z.301 SPANISH-1988 INTRODUCTION TO THE CCITT MAN-MACHINE LANGUAGE
• ITU-T G.411-1988 Use of radio-relay systems for international telephone circuits
• ITU-T D.176-1997 Transmission in Encoded Form of Telephone Reversed Charge Billing and Accounting Information - Series D: General Tariff Principles - General Tariff Principles - Drawing Up and Exchange of International Telephone and Telex Accounts Study Group 3
• ITU-T G.172-1988 Transmission Plan Aspects of International Conference Calls - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 3 pp
• ITU-T E.153-1996 Home Country Direct - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study Group I; 10 p
• ITU-T E.193-2000 E.164 Country Code Expansion Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Operation Numbering Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service Study
• ITU-T M.1016-1989 Assessment of the Service Availability Performance of International Leased Circuits - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satelli
• ITU-T G.131-2003 Talker echo and its control Study Group 12
• ITU-T E.195 FRENCH-2000 ITU-T International Numbering Resource Administration Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Numbering Plan of the International Telephone Service Study Group 2; 16 pp
• ITU-T E.195 SPANISH-2000 ITU-T International Numbering Resource Administration Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Numbering Plan of the International Telephone Service Study Group 2; 16 pp
• ITU-T M.850-1989 International Time Division Multiplex (TDM) Telegraph Systems - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission S
• ITU-T D.172-1989 Accounting for Calls Circulated over International Routes for Which Accounting Rates Have Not Been Established - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 1 pp
• ITU-T D.117 FRENCH-1999 Charging and Accounting Principles for the International Premium Rate Service (IPRS) - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 9 pp
• ITU-T D.117 SPANISH-1999 Charging and Accounting Principles for the International Premium Rate Service (IPRS) - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 9 pp
• ITU-T G.411-1989 Use of Radio-Relay Systems for International Telephone Circuits - International Analogue Carrier Systems (Study Group XV) 1 pp
• ITU-T D.173-1989 Defaulting Subscribers - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T E.111-1988 Extension of International Telephone Services - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp
• ITU-T E.120-1988 Instructions for Users of the International Telephone Service - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 7 pp
• ITU-T E.125-1988 Inquiries Among Users of the International Telephone Service - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 1 pp
• ITU-T E.550-1993 Grade-of-Service and New Performance Criteria under Failure Conditions in International Telephone Exchanges - Telephone Network and ISDN - Quality of Service Network Management and Traffic Engineering Study Group II; 12 pp
• ITU-T E.122 FRENCH-1993 MEASURES TO REDUCE CUSTOMER DIFFICULTIES IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T E.122 SPANISH-1993 MEASURES TO REDUCE CUSTOMER DIFFICULTIES IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T Q.5-1988 ADVANTAGES OF SEMI-AUTOMATIC SERVICE IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T Q.5 SPANISH-1988 ADVANTAGES OF SEMI-AUTOMATIC SERVICE IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T Q.5 FRENCH-1988 ADVANTAGES OF SEMI-AUTOMATIC SERVICE IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T D.106-1988 Introduction of reduced rates during periods of light traffic in the international telephone service
• ITU-T E.144*ITU-T Q.5-1988 Advantages of semi-automatic service in the international telephone service
• ITU-T E.155 SPANISH-1998 International Premium Rate Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Stud
• ITU-T E.155 FRENCH-1998 International Premium Rate Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Stud
• ITU-T RESOLUCION 1 SPANISH-2008 Rules of procedure of the ITU Telecommunication Standardization Sector (ITU-T)
• ITU-T RESOLUTION 1 CHINESE-2008 Rules of procedure of the ITU Telecommunication Standardization Sector (ITU-T)
• ITU-T G.136 SPANISH-1999 Application Rules for Automatic Control Devices - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain Formed by the International Circuits and
• ITU-T M.470-1988 SETTING UP AND LINING UP ANALOGUE CHANNELS FOR INTERNATIONAL TELECOMMUNICATION SERVICES
• ITU-T F.72-1996 International Telex Service - General Principles and Operational Aspects of a Store and Forward Facility - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 20 pp
• ITU-T M.475 FRENCH-1988 SETTING UP AND LINING UP MIXED ANALOGUE/DIGITAL CHANNELS FOR INTERNATIONAL TELECOMMUNICATION SERVICES
• ITU-T M.475 SPANISH-1988 SETTING UP AND LINING UP MIXED ANALOGUE/DIGITAL CHANNELS FOR INTERNATIONAL TELECOMMUNICATION SERVICES
• ITU-T M.520-1988 Routine Maintenance on International Group, Supergroup, Etc., Links - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits
• ITU-T M.520 FRENCH-1988 ROUTINE MAINTENANCE ON INTERNATIONAL GROUP, SUPERGROUP, ETC., LINKS
• ITU-T M.520 SPANISH-1988 ROUTINE MAINTENANCE ON INTERNATIONAL GROUP, SUPERGROUP, ETC., LINKS
• ITU-T M.525-1988 Automatic Maintenance Procedures for International Group, Supergroup, Etc., Links - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits
• ITU-T M.525 FRENCH-1988 AUTOMATIC MAINTENANCE PROCEDURES FOR INTERNATIONAL GROUP, SUPERGROUP, ETC., LINKS
• ITU-T M.525 SPANISH-1988 AUTOMATIC MAINTENANCE PROCEDURES FOR INTERNATIONAL GROUP, SUPERGROUP, ETC., LINKS
• ITU-T D.106-1993 INTRODUCTION OF REDUCED RATES DURING PERIODS OF LIGHT TRAFFIC IN THE INTERNATIONAL TELEPHONE SERVICE
• ITU-T M.1014-1989 Transmission Maintenance Point (International Line) (TMP-IL) - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmissio
• ITU-T D.140 AMD 3 SPANISH-2003 Accounting Rate Principles for the International Telephone Service Amendment 3: Revised Annex A Guidelines for the cost elements to be taken into account when determining accounting rates and accounting rate shares for the international telephone service
• ITU-T D.140 AMD 3 FRENCH-2003 Accounting Rate Principles for the International Telephone Service Amendment 3: Revised Annex A Guidelines for the cost elements to be taken into account when determining accounting rates and accounting rate shares for the international telephone service
• ITU-T D.140 AMD 3 RUSSIAN-2003 Accounting rate principles for the international telephone service Amendment 3: Revised Annex A ?Guidelines for the cost elements to be taken into account when determining accounting rates and accounting rate shares for the international telephone servic
• ITU-T B.17 FRENCH-1993 ADOPTION OF THE CCITT SPECIFICATION AND DESCRIPTION LANGUAGE (SDL)
• ITU-T B.17 SPANISH-1993 ADOPTION OF THE CCITT SPECIFICATION AND DESCRIPTION LANGUAGE (SDL)
• ITU-T F.1 SPANISH-1998 Operational Provisions for the International Public Telegram Service - Series F: Non-Telephone Telecommunication Services - Telegraph Service - Operating Methods for the International Public Telegram Service Study Group 2; 65 pp
• ITU-T V.51-1988 Organization of the Maintenance of International Telephone-Type Circuits Used for Data Transmission - Data Communication over the Telephone Network (Study Group XVII) 1 pp
• ITU-T D.11-1991 Special Tariff Principles for International Packet-Switched Public Data Communication Services by Means of the Virtual Call Facility (Study Group III) 6 pp
• ITU-T M.32-1988 PRINCIPLES FOR USING ALARM INFORMATION FOR MAINTENANCE OF INTERNATIONAL TRANSMISSION SYSTEMS AND EQUIPMENT
• ITU-T M.723-1989 Circuit Control Station - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.724-1989 Circuit Sub-Control Station - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T E.100-1988 Definitions of Terms Used in International Telephone Operation - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 5 pp
• ITU-T E.401-1989 Statistics for the International Telephone Service (Number of Circuits in Operation and Volume of Traffic) - Telephone Network and ISDN - Quality of Service, Network Management and Traffic Engineering (Study Group II) 2 pp
• ITU-T E.191.1 FRENCH-2001 Criteria and procedures for the allocation of the ITU-T international network designator addresses
• ITU-T E.191.1 SPANISH-2001 Criteria and procedures for the allocation of the ITU-T international network designator addresses
• ITU-T E.154 FRENCH-1998 International Shared Cost Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study
• ITU-T E.154 SPANISH-1998 International Shared Cost Service - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study
• ITU-T M.300-1989 Definitions Concerning International Transmission Systems - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits Study Group IV; 12 pp
• ITU-T M.520-1989 Routine Maintenance on International Group, Supergroup, Etc., Links - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T M.2110-2002 Bringing-Into-Service of International PDH Paths Sections and Transmission Systems Series M: TMN and Network Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits International Transport Network Study
• ITU-T E.420-1988 Checking the quality of the international telephone service - General considerations
• ITU-T D.140-2002 SERIES D: GENERAL TARIFF PRINCIPLES General tariff principles Charging and accounting in the international telephone service Accounting rate principles for the international telephone service Study Group 3
• ITU-T M.475-1988 Setting up and Lining up Mixed Analogue/Digital Channels for International Telecommunication Services - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits Study Group IV
• ITU-T G.136 FRENCH-1999 Application Rules for Automatic Control Devices - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain Formed by the International Circuits and
• ITU-T M.1385-2000 Maintenance of international leased circuits that are supported by international data transmission systems Study Group 4
• ITU-T M.880-1989 International Phototelegraph Transmission - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study Gr
• ITU-T D.116-2004 Charging and Accounting Principles Relating to the Home Country Direct Telephone Service - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3
• ITU-T E.122-1988 Measures to Reduce Customer Difficulties in the International Telephone Service - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 2 pp
• ITU-T M.730-1989 Maintenance Methods - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 4 pp
• ITU-T M.731-1989 Subjective Testing - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T E.425-2002 Internal Automatic Observations Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Network Management - Checking the Quality of the International Phone Service Study Group 2
• ITU-T E.123 FRENCH-2001 Notation for National and International Telephone Numbers e-mail addresses and Web addresses SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN FACTORS International operation - General provisions concerning users Study Grou
• ITU-T E.123 SPANISH-2001 Notation for National and International Telephone Numbers e-mail addresses and Web addresses SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN FACTORS International operation - General provisions concerning users Study Grou
• ITU-T D.73-1992 General tariff and international accounting principles for interworking between the international bureaufax and telefax services
• ITU-T F.72 FRENCH-1996 International Telex Service - General Principles and Operational Aspects of a Store and Forward Facility - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 20 pp
• ITU-T F.72 SPANISH-1996 International Telex Service - General Principles and Operational Aspects of a Store and Forward Facility - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 20 pp
• ITU-T M.450-1989 Bringing a New International Transmission System into Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 8 pp
• ITU-T FASCICLE III.1 General Characteristics of International Telephone Connections and Circuits Recommendations G.101-G.181
• ITU-T J.12 FRENCH-1988 TYPES OF SOUND-PROGRAMME CIRCUITS ESTABLISHED OVER THE INTERNATIONAL TELEPHONE NETWORK
• ITU-T J.12 SPANISH-1988 TYPES OF SOUND-PROGRAMME CIRCUITS ESTABLISHED OVER THE INTERNATIONAL TELEPHONE NETWORK
• ITU-T M.910-1989 Setting up and Lining up an International Leased Group Link for Wide-Spectrum Signal Transmission - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Ma
• ITU-T M.1010-1989 Constitution and Nomenclature of International Leased Circuits - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmiss
• ITU-T M.1060-1989 Maintenance of International Leased Circuits - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems (Study
• ITU-T M.1380-2000 Bringing-into-service of international leased circuits that are supported by international data transmission systems Study Group 4
• ITU-T M.715-1989 Fault Report Point (Circuit) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T F.18 FRENCH-1998 Guidelines on Harmonization of International Public Bureau Services - Series F: Non-Telephone Telecommunication Services - Telegraph Service - Operating Methods for the International Public Telegraph Service Study Group 2; 12 pp
• ITU-T F.18 SPANISH-1998 Guidelines on Harmonization of International Public Bureau Services - Series F: Non-Telephone Telecommunication Services - Telegraph Service - Operating Methods for the International Public Telegraph Service Study Group 2; 12 pp
• ITU-T E.153 FRENCH-1996 Home Country Direct - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study Group I; 10 p
• ITU-T E.153 SPANISH-1996 Home Country Direct - Series E: Overall Network Operation Telephone Service Service Operation and Human Factors - Operation Numbering Routing and Mobile Services - International Operation - Operation of International Telephone Services Study Group I; 10 p
• ITU-T M.717-1989 Test Point (Transmission) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.720-1989 Network Analysis Point - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.722-1989 Network Management Point - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T M.725-1989 Restoration Control Point - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.562-1989 Types of Circuit and Circuit Section - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 5 pp
• ITU-T M.251-1988 Maintenance Functions to Be Implemented in CCITT-MML - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 29 pp
• ITU-T M.30-1989 Principles for a Telecommunications Management Network - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 40 pp
• ITU-T E.123 AMD 1 CHINESE-2008 Notation for national and international telephone numbers, e-mail addresses and Web addresses Amendment 1
• ITU-T G.174 FRENCH-1994 Transmission Performance Objectives for Terrestrial Digital Wireless Systems Using Portable Terminals to Access the PSTN - General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 17 pp
• ITU-T G.174 SPANISH-1994 Transmission Performance Objectives for Terrestrial Digital Wireless Systems Using Portable Terminals to Access the PSTN - General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 17 pp
• ITU-T D.501R-1993 Accounting Rates Applicable to Telex Relations between Countries in Asia and Oceania - Charging and Accounting in International Telecommunication Services (Study Group III) 4 pp
• ITU-T E.169 SPANISH-2002 Application of Recommendation E.164 numbering plan for universal international numbers for international telecommunications services using country codes for global services SERIES E: OVERALL NETWORK OPERATION TELEPHONE SERVICE SERVICE OPERATION AND HUMAN
• ITU-T M.560-1988 INTERNATIONAL TELEPHONE CIRCUITS - PRINCIPLES, DEFINITIONS AND RELATIVE TRANSMISSION LEVELS
• ITU-T M.560 FRENCH-1988 INTERNATIONAL TELEPHONE CIRCUITS - PRINCIPLES, DEFINITIONS AND RELATIVE TRANSMISSION LEVELS
• ITU-T M.560 SPANISH-1988 INTERNATIONAL TELEPHONE CIRCUITS - PRINCIPLES, DEFINITIONS AND RELATIVE TRANSMISSION LEVELS
• ITU-T F.108-1993 OPERATING RULES FOR INTERNATIONAL PHOTOTELEGRAPH CALLS TO MULTIPLE DESTINATIONS
• ITU-T M.100-1988 SERVICE CIRCUITS
• ITU-T M.620-1989 Methods for Carrying out Routine Measurements on Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.1040-1988 CHARACTERISTICS OF ORDINARY QUALITY INTERNATIONAL LEASED CIRCUITS
• ITU-T Q.14-1989 Means to Control the Number of Satellite Links in an International Telephone Connection - General Recommendations on Tele. Switching and Signalling - Functions and Information Flows for Services in the ISDN - Supplements Study Group XI; 2 pp
• ITU-T M.710-1988 PERFORMANCE MONITORING ON INTERNATIONAL TRANSMISSION SYSTEMS AND EQUIPMENT
• ITU-T Q.14 FRENCH-1988 Means to control the number of satellite links in an international telephone connection
• ITU-T Q.14 SPANISH-1988 Means to control the number of satellite links in an international telephone connection
• ITU-T M.820-1989 Periodicity of Routine Tests on International Voice-Frequency Telegraph Links - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and
• ITU-T F.59 FRENCH-1996 General Characteristics of the International Telex Service - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 13 pp
• ITU-T F.59 SPANISH-1996 General Characteristics of the International Telex Service - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 13 pp
• ITU-T M.34-1988 PERFORMANCE MONITORING ON INTERNATIONAL TRANSMISSION SYSTEMS AND EQUIPMENT
• ITU-T M.460-1989 Bringing International Group, Supergroup, Etc., Links into Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 18 pp
• ITU-T M.525-1989 Automatic Maintenance Procedures for International Group, Supergroup, Etc., Links - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.556-1989 Setting up and Initial Testing of Digital Channels on an International Digital Path or Block - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T M.734-1989 Exchange of Information on Incoming Test Facilities at International Switching Centres - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.556-1988 Setting up and Initial Testing of Digital Channels on an International Digital Path or Block - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits
• ITU-T M.556 FRENCH-1988 SETTING UP AND INITIAL TESTING OF DIGITAL CHANNELS ON AN INTERNATIONAL DIGITAL PATH OR BLOCK
• ITU-T M.556 SPANISH-1988 SETTING UP AND INITIAL TESTING OF DIGITAL CHANNELS ON AN INTERNATIONAL DIGITAL PATH OR BLOCK
• ITU-T M.718-1989 Test Point (Line Signalling) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T G.114-2003 One-way transmission time Study Group 12
• ITU-T E.164.3 SPANISH-2001 Principles, criteria and procedures for the assignment and reclamation of E.164 country codes and associated identification codes for groups of countries
• ITU-T E.164.3 FRENCH-2001 Principles, criteria and procedures for the assignment and reclamation of E.164 country codes and associated identification codes for groups of countries
• ITU-T M.110-1988 CIRCUIT TESTING
• ITU-T M.610-1989 Periodicity of Maintenance Measurements on Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.729-1988 ORGANIZATION OF THE MAINTENANCE OF INTERNATIONAL PUBLIC SWITCHED TELEPHONE CIRCUITS USED FOR DATA TRANSMISSION
• ITU-T M.729 FRENCH-1988 ORGANIZATION OF THE MAINTENANCE OF INTERNATIONAL PUBLIC SWITCHED TELEPHONE CIRCUITS USED FOR DATA TRANSMISSION
• ITU-T M.729 SPANISH-1988 ORGANIZATION OF THE MAINTENANCE OF INTERNATIONAL PUBLIC SWITCHED TELEPHONE CIRCUITS USED FOR DATA TRANSMISSION
• ITU-T M.1055-1989 Lining up an International Multiterminal Leased Circuit - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Sys
• ITU-T M.726-1988 MAINTENANCE ORGANIZATION FOR THE WHOLLY DIGITAL INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC TELEPHONE SERVICE
• ITU-T M.15-1988 MAINTENANCE CONSIDERATIONS FOR NEW SYSTEMS
• ITU-T M.90-1989 Sub-Control Stations - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.665-1989 Testing of Echo Cancellers - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 2 pp
• ITU-T M.716-1989 Fault Report Point (Network) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.721-1989 System Availability Information Point - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T G.177 FRENCH-1999 Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and
• ITU-T G.177 SPANISH-1999 Transmission Planning for Voiceband Services over Hybrid Internet/PSTN Connections - Series G: Transmission Systems and Media Digital Systems and Networks International Telephone Connections and Circuits - Transmission Plan Aspects of Special Circuits and
• ITU-T F.59-1996 General Characteristics of the International Telex Service - Series F: Non-Telephone Telecommunication Services - Telegraph Service - The International Telex Service Study Group 1; 13 pp
• ITU-T E.169.2 FRENCH-2000 Application of Recommendation E.164 Numbering Plan for Universal International Premium Rate Numbers for the International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operatio
• ITU-T E.169.2 SPANISH-2000 Application of Recommendation E.164 Numbering Plan for Universal International Premium Rate Numbers for the International Premium Rate Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operatio
• ITU-T E.169.3 FRENCH-2000 Application of Recommendation E.164 Numbering Plan for Universal International Shared Cost Numbers for the International Shared Cost Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation
• ITU-T E.169.3 SPANISH-2000 Application of Recommendation E.164 Numbering Plan for Universal International Shared Cost Numbers for the International Shared Cost Service Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation
• ITU-T G.123-1989 Circuit Noise in National Networks - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 6 pp
• ITU-T D.178 FRENCH-1993 Monthly Accounts for Semi-Automatic Telephone Calls (Ordinary and Urgent Calls with or without Special Facilities) - Charging and Accounting in International Telecommunication Services - Drawing up and Exchange of International Telephone and Telex Account
• ITU-T D.178 SPANISH-1993 Monthly Accounts for Semi-Automatic Telephone Calls (Ordinary and Urgent Calls with or without Special Facilities) - Charging and Accounting in International Telecommunication Services - Drawing up and Exchange of International Telephone and Telex Account
• ITU-T E.193 FRENCH-2000 E.164 Country Code Expansion Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Operation Numbering Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service Study
• ITU-T E.193 SPANISH-2000 E.164 Country Code Expansion Series E: Overall Network Operation Telephone Service Service Operation and Human Factors Operation Numbering Routing and Mobile Services - International Operation - Numbering Plan of the International Telephone Service Study
• ITU-T M.1375 FRENCH-1998 Maintenance of International Data Transmission Systems
• ITU-T D.45 (REV.1) FRENCH-1992 CHARGING AND ACCOUNTING PRINCIPLES FOR THE INTERNATIONAL TELEMESSAGE SERVICE
• ITU-T F.108 FRENCH-1993 OPERATING RULES FOR INTERNATIONAL PHOTOTELEGRAPH CALLS TO MULTIPLE DESTINATIONS
• ITU-T F.108 SPANISH-1993 OPERATING RULES FOR INTERNATIONAL PHOTOTELEGRAPH CALLS TO MULTIPLE DESTINATIONS
• ITU-T M.80-1989 Control Stations - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.719-1989 Testing Point (Switching and Interregister Signalling) - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 3 pp
• ITU-T M.726 FRENCH-1988 MAINTENANCE ORGANIZATION FOR THE WHOLLY DIGITAL INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC TELEPHONE SERVICE
• ITU-T M.726 SPANISH-1988 MAINTENANCE ORGANIZATION FOR THE WHOLLY DIGITAL INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC TELEPHONE SERVICE
• ITU-T Q.7 SPANISH-1988 Signalling systems to be used for international automatic and semi-automatic telephone working
• ITU-T Q.7 FRENCH-1988 Signalling systems to be used for international automatic and semi-automatic telephone working
• ITU-T M.900-1989 Use of Leased Group and Supergroup Links for Wide-Spectrum Signal Transmission (Data, Facsimile, Etc.) - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance
• ITU-T M.570-1989 Constitution of the Circuit: Preliminary Exchange of Information - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 5 pp
• ITU-T M.733-1989 Transmission Routine Maintenance Measurements on Automatic and Semi-Automatic Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T D.96-1999 Charging Billing Accounting and Settlement Principles for Global Mobile Personal Communications by Satellite (GMPCS) for the International Telephone Service - Series D: General Tariff Principles - General Tariff Principles - Charging and Accounting in the
• ITU-T M.1375-1998 Maintenance of International Data Transmission Systems - Series M: TMN and Network Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits - International Data Transmission Study Group 4; 16 pp
• ITU-T D. 500R-1993 Accounting Rates Applicable to Telephone Relations between Countries in Asia and Oceania - Charging and Accounting in International Telecommunication Service (Includes Addendum 01-95) 11 pp
• ITU-T G.102-1988 Transmission Performance Objectives and Recommendations - General Characteristics of International Telephone Connections and Circuits Study Groups 12 and 15
• ITU-T G.101-1993 (WITHDRAWN) Transmission Plan - Transmission Systems and Media - General Characteristics of International Telephone Connections and International Telephone Circuits Study Group 12
• ITU-T F.1 AMD 1 FRENCH-2007 SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Telegraph service Operating methods for the international public telegram service Operational provisions for the international public telegram service Amendment 1 Study Group 2
• ITU-T F.1 AMD 1 SPANISH-2007 SERIES F: NON-TELEPHONE TELECOMMUNICATION SERVICES Telegraph service Operating methods for the international public telegram service Operational provisions for the international public telegram service Amendment 1 Study Group 2
• ITU-T M.1030-1988 CHARACTERISTICS OF ORDINARY QUALITY INTERNATIONAL LEASED CIRCUITS FORMING PART OF PRIVATE SWITCHED TELEPHONE NETWORKS
• ITU-T M.800-1989 Use of Circuits for Voice-Frequency Telegraphy - Maintenance of International Telegraph, Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Systems Stud
• ITU-T E.175-1988 Models for International Network Planning - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service (Study Group II) 3 pp
• ITU-T M.120-1988 ACCESS POINTS FOR MAINTENANCE
• ITU-T M.1340 CORR 1 FRENCH-2001 Performance Objectives Allocations and Limits for International PDH Leased Circuits and Supporting Data Transmission Links and Systems Series M: TMN and Network Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Le
• ITU-T E.112-1988 Arrangements to Be Made for Controlling the Telephone Services between Two Countries - Telephone Network and ISDN - Operation, Numbering, Routing and Mobile Service Study Group II; 1 pp
• ITU-T RESOLUTION 1-2008 Rules of procedure of the ITU Telecommunication Standardization Sector (ITU-T)
• ITU-T M.630-1989 Maintenance of Circuits Using Control Chart Methods - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T M.670-1989 Maintenance of a Circuit Fitted with a Compandor - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits Study Group IV; 2 pp
• ITU-T M.35-1988 PRINCIPLES CONCERNING LINE-UP AND MAINTENANCE LIMITS
• ITU-T M.1535-1996 Principles for Maintenance Information to be Exchanged at Customer Contact Point (MICC) - Series M: Maintenance: International Transmission Systems Telephone Circuits Telegraphy Facsimile and Leased Circuits; Designations and Information Exchange Study Gr
• ITU-T E.113-1993 (WITHDRAWN) Validation Procedures for the International Telecommunications Charge Card Service - Telephone Network and ISDN; Operation, Numbering, Routing and Mobile Service (Study Group I) 9 pp
• ITU-T D.117-1999 Charging and Accounting Principles for the International Premium Rate Service (IPRS) - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service Study Group 3; 9 pp
• ITU-T E.195-2000 ITU-T International Numbering Resource Administration Series E: Overall Network Operation Telephone Service Service Operation and Human Factors International Operation - Numbering Plan of the International Telephone Service Study Group 2; 16 pp
• ITU-T G.105-1988 Hypothetical Reference Connection for Crosstalk Studies - General Characteristics of International Telephone Connections and Circuits Study Groups 12 and 15
• ITU-T E.123 AMD 1 FRENCH-2008 Notation for national and international telephone numbers e-mail addresses and Web addresses Amendment 1 Study Group 2
• ITU-T E.123 AMD 1 SPANISH-2008 Notation for national and international telephone numbers e-mail addresses and Web addresses Amendment 1 Study Group 2

ITU-T - International Telecommunication Union/ITU Telcommunication Sector, International Calling Rules

• ITU-T M.70-1988 GUIDING PRINCIPLES ON THE GENERAL MAINTENANCE ORGANIZATION FOR TELEPHONE - TYPE INTERNATIONAL CIRCUITS
• ITU-T M.565-1988 Access Points for International Telephone Circuits - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV)
• HDBK IIT-1993 Instructions for the International Telephone Service
• ITU-T E.110-1993 Organization of the International Telephone Network
• ITU-T D.140-2000 Accounting Rate Principles for International Telephone Service Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service (Study Group 3)
• ITU-T E.171-1993 International Telephone Routing Plan (Study Group II)
• ITU-T E.120-1993 Instructions for Users of the International Telephone Service
• ITU-T D.151 NOTE-1990 OLD SYSTEM FOR ACCOUNTING IN INTERNATIONAL TELEPHONY
• ITU-T D.150-1996 New System for Accounting in International Telephony - Series D: General Tariff Principles - Charging and Accounting in the International Telephone Service (Study Group 3; 22 pp)
• ITU-T D.140-1995 Accounting Rate Principles for International Telephone Services - Charging and Accounting in International Telecommunication Services (Study Group 3) 8 pp
• ITU-T D.140-1992 Accounting Rate Principles for International Telephone Services (Study Group III) 6 pp
• ITU-T D.115-1996 Tariff Principles and Accounting for the International Freephone Service (IFS) - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service (Study Group 3; 10 pp)
• ITU-T E.125-1998 Inquiries Among Users of the International Telephone Service
• ITU-T D.150-1989 New System for Accounting in International Telephony - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 12 pp
• ITU-T M.1230-1989 Assessment of the Performance of the International Telephone Network - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Tran
• ITU-T D.115-1989 Tariff Principles and Accounting for the International Freephone Service (IFS) - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T M.93-1989 Exchange of Contact Point Information for the Maintenance of International Services and the International Network - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 9 pp
• SERIES G.100 SUPP 29-1993 Planning of Mixed Ananlogue - Digital Circuits (Chains@ Connections) - Transmission Systems and Media - General Characteristics of International Telephone Connections and International Telephone Circuits (Supplement 29)
• ITU-T D.101-1989 Charging in Automatic International Telephone Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III; 2 pp; Cancelled)
• ITU-T G.113-1996 Transmission Impairments - Transmission Systems and Media General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 33 pp
• ITU-T G.114-1996 One-Way Transmission Time - Transmission Systems and Media General Characteristics of International Telephone Connections and International Telephone Circuits (Study Group 12) 17 pp
• ITU-T E.140-1989 Principles for the Operation of International Telephone Services - Telephone Network and ISDN - Operation@ Numbering@ Routing and Mobile Service (Study Group II) 3 pp
• ITU-T D.170-1993 Monthly Telephone and Telex Accounts - Charging and Accounting in International Telecommunication Services - Drawing up and Exchange of International Telephone and Telex Accounts (Study Group III) 12 pp
• ITU-T D.170-1998 Monthly Telephone and Telex Accounts - Series D: General Tariff Principles - General Tariff Principles - Drawing up and Exchange of International Telephone and Telex Accounts (Study Group 3; 15 pp)
• ITU-T G.471-1989 Conditions Necessary for Interconnection of Mobile Radiotelephone Stations and International Telephone Lines - International Analogue Carrier Systems (Study Group XV; 1 pp; Cancelled)
• ITU-T D.150-1992 New System for Accounting in International Telephony (Study Group III) 14 pp
• RESOLUTION 1-2008 Rules of procedure of the ITU Telecommunication Standardization Sector (ITU-T)
• ITU-T D.390R-1989 Accounting System in the International Automatic Telephone Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III; 2 pp; Cancelled)
• ITU-T M.555-1989 Bringing International Digital Blocks@ Paths and Sections into Service - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 5 pp
• ITU-T D.305R-1989 Remuneration for Facilities Used for the Switched-Transit Handling of Intercontinental Telephone Traffic in a Country in Europe or the Mediterranean Basin - General Tariff Principles - Charging and Accounting in International Telecommunications Services (
• ITU-T D.116-1996 Charging and Accounting Principles Relating to the Home Country Direct Telephone Service - Series D: General Tariff Principles General Tariff Principles - Charging and Accounting in the International Telephone Service (Study Group 3; 10 pp)
• ITU-T D.155-1989 Guiding Principles Governing the Apportionment of Accounting Rates in Intercontinental Telephone Relations - General Tariff Principles - Charging and Accounting in Intl Telecommunications Services (Study Group III) 2 pp
• ITU-T M.1045-1989 Preliminary Exchange of Information for the Provision of International Leased Circuits - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satel
• ITU-T E.169-1996 Application of Recommendation E.164 Numbering Plan for Universal International Freephone Numbers for International Freephone Service - Telephone Network and ISDN Operation@ Numbering@ Routing and Mobile Service (Study Group 2) 19 pp
• ITU-T M.711-1989 Escalation Procedure - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 1 pp
• ITU-T M.1020-1989 Characteristics of Special Quality International Leased Circuits with Special Bandwidth Conditioning - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of
• ITU-T G.111-1989 Loudness Ratings (LRs) in an International Connection - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 22 pp
• ITU-T M.1120-1989 Functions@ Maintenance Responsibilities and Maintenance Facilities of a Coast Earth Station for Telephony Services - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - M
• ITU-T G.131-1996 Control of Talker Echo - Series G: Transmission Systems and Media International Telephone Connections and Circuits - General Characteristics of the 4-Wire Chain Formed by the International Circuits and National Extension Circuits (Study Group 12)
• ITU-T D.1-1989 General Principles for the Lease of International (Continental and Intercontinental) Private Telecommunication Circuits - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 8 pp
• ITU-T M.1025-1989 Characteristics of Special Quality International Leased Circuits with Basic Bandwidth Conditioning - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Ma
• ITU-T D.170-1989 Monthly Telephone and Telex Accounts - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 9 pp
• ITU-T D.93-1989 Charging and Accounting in the International Land Mobile Telephone Service (Provided Via Cellular Radio Systems) - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 11 pp
• ITU-T G.122-1989 Influence of National Systems on Stability@ Talker Echo@ and Listener Echo in International Connections - General Characteristics of International Telephone Connections and Circuits (Study Groups 12 and 15)
• ITU-T E.169-1998 Application of Recommendation E.164 Numbering Plan for Universal International Freephone Numbers for International Freephone Service - Series E: Overall Network Operation@ Telephone Service@ Service Operation and Human Factors Operation@ Numbering@ Routin
• ITU-T G.162-1989 Characteristics of Compandors for Telephony - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 8 pp
• ITU-T M.1050-1989 Lining up an International Point-to- Point Leased Circuit - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission Sy
• ITU-T M.1340-1996 Performance Allocations and Limits for International Data Transmission Links and Systems - Series M: Maintenance: International Transmission Systems@ Telephone Circuits@ Telegraphy@ Facsimile and Leased Circuits; International Data Transmission Systems (S
• ITU-T D.50-1989 Tariff and International Accounting Principles for the International Teletex Service - Charging and Accounting in International Telecommunications Services (Study Group III; 4 pp; Cancelled)
• ITU-T D.6-1989 General Principles for the Provision of International Telecommunications Facilities to Organizations Formed to Meet the Specialized International Communication Needs of Their Members - General Tariff Principles - Charging and Accounting in International T
• ITU-T M.140-1989 Designations of International Circuits@ Groups@ Group and Line Links@ Digital Blocks@ Digital Paths@ Data Transmission Systems and Related Information - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circu
• ITU-T M.60-1989 Maintenance Terminology and Definitions - General Maintenance Principles - Maintenance of International Transmission Systems and Telephone Circuits (Study Group IV) 27 pp
• ITU-T D.110-1989 Charging and Accounting for Conference Calls - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T D.45-1989 Charging and Accounting Principles for the International Telemessage Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T M.1370-1989 Setting up and Lining up of International Data Transmission Systems Operating at 48 kbit/s and Above - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of
• ITU-T G.101-1989 Transmission Plan - General Characteristics of International Telephone Connections and Circuits (Study Groups 12)
• ITU-T G.153-1989 Characteristics Appropriate to International Circuits More Than 2500 km in Length - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 4 pp
• ITU-T D.73-1989 General Tariff and International Accounting Principles for Interworking between the International Bureaufax and Telefax Services - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T G.143-1989 Circuit Noise and the Use of Compandors - General Characteristics of International Telephone Connections and Circuits
• ITU-T D.400R-1989 Accounting Rates Applicable in Telephone Relations between Countries in Latin America - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 2 pp
• ITU-T G.114-2000 One-Way Transmission Time Series G: Transmission Systems and Media@ Digital Systems and Networks International Telephone Connections and Circuits - General Recommendations on the Transmission Quality for an Entire International Telephone Connection (Study
• ITU-T G.151-1989 General Performance Objectives Applicable to All Modern International Circuits and National Extension Circuits - General Characteristics of International Telephone Connections and Circuits (Study Groups XII and XV) 6 pp
• ITU-T M.1375-1989 Maintenance of International Data Transmission Systems Operating at 48 kbit/s and Above - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Sate
• ITU-T G.120-1989 Transmission Characteristics of National Networks - General Characteristics of International Telephone Connections and Circuits (Study Groups 12 and 15)
• ITU-T E.152-1996 International Freephone Service - Telephone Network and ISDN Operation@ Numbering@ Routing and Mobile Service (Study Group 1) 29 pp
• ITU-T E.141-1989 Instructions for the International Telephone Service - Telephone Network and ISDN - Operation@ Numbering@ Routing and Mobile Service (Study Group II) 1 pp
• ITU-T D.170-1995 Monthly Telephone and Telex Accounts - Charging and Accounting in International Telecommunication Services (Study Group 3)
• ITU-T E.118-2001 The International Telecommunication Charge Card Series E: Overall Network Operation@ Telephone Service@ Service Operation and Human Factors International Operation - General Provisions Concerning Administrations (Study Group 2)
• ITU-T D.35-1989 General Charging and Accounting Principles in the International Public Interpersonal Messaging (IPM) Service - General Tariff Principles - Charging and Accounting in International Telecommunications Services (Study Group III) 1 pp
• ITU-T M.1110-1989 Maintenance Organization for the Maritime Satellite Service - Maintenance of International Telegraph@ Phototelegraph and Leased Circuits - Maintenance of the International Public Telephone Network - Maintenance of Maritime Satellite and Data Transmission
• ITU-T E.251-1989 Old System for Accounting in International Telephony - Telephone Network and ISDN - Operation@ Numbering@ Routing and Mobile Service (Study Group II) 1 pp (Same as Recmn D.151)

CEPT - Conference Europeenne des Administrations des Postes et des Telecommunications, International Calling Rules

• CEPT T/TPH 24 E-1990 International Telephone Enquiry Service in CEPT Member Countries
• CEPT T/N 33-01 E-1987 International Digital Audiographic Teleconferencing
• CEPT T/TR 01-01-1982 Interconnexion Internationale A 2048 Kbit/s Pour Le Service Visiophonique Service
• CEPT T/TPH 32 E-1980 Admission of Station-to-Station Telephone Calls in International Relations Operating Automatic Service
• CEPT T/TPH 21-1981 Principes De Retablissement De Services Internationaux De Telecommunications Interrompas

Korean Agency for Technology and Standards (KATS), International Calling Rules

• KS C IEC 60050-722:2020 International Electrotechnical Vocabulary－Chapter 722：Telephony
• KS C IEC 60050-722:2009 International Electrotechnical Vocabulary-Chapter 722:Telephony
• KS B ISO TR 14600-2003(2008) Gas cylinders－International quality conformance system－Basic rules

KR-KS, International Calling Rules

• KS C IEC 60050-722-2020 International Electrotechnical Vocabulary－Chapter 722：Telephony

International Electrotechnical Commission (IEC), International Calling Rules

• IEC 60050-722:1992 International Electrotechnical Vocabulary: chapter 722: telephony
• IEC 60050-55:1970 International Electrotechnical Vocabulary. Part 55 : Telegraphy and telephony
• IEC 60050-722:1992/AMD1:2017 Amendment 1 - International electrotechnical vocabulary - Part 722: Telephony
• IEC 60050-601:1985 International Electrotechnical Vocabulary. Part 601 : Chapter 601 : Generation, transmission and distribution of electricity - General
• IEC 60050-601:1985/AMD1:1998 International Electrotechnical Vocabulary - Chapter 601: Generation, transmission and distribution of electricity - General; Amendment 1

International Code Council, International Calling Rules

• ICC SUPPLEMENT-2004 Supplement to the International Codes

IEC - International Electrotechnical Commission, International Calling Rules

• IEC 60050 GROUP 55:1970 International Electrotechnical Vocabulary Group 55: Telegraphy and Telephony (Edition 2.0)
• IEC 60050 CHAP 601:1985 International Electrotechnical Vocabulary Chapter 601: Generation@ Transmission and Distribution of Electricity - General

National Metrological Technical Specifications of the People's Republic of China, International Calling Rules

• JJF 1868-2020 Rules for Adoption of International Metrological Specifications

RU-GOST R, International Calling Rules

• GOST R 53726-2009 Quality of service ?international telephone communication?. Quality indices
• GOST 1.3-2014 Interstate system for standardization. Standards interstate. Rules of development on the basis of the international and regional standards
• GOST R 56087.4-2014 System of national standards for quality of telecommunication services. Quality of services of local, long-distance and international telephone communication. Normative values for quality indices of telephone calls

Professional Standard - Post and Telecommunication, International Calling Rules

• YD/T 4213-2023 Technical Requirements for Monitoring and Intercepting International Fraudulent Calls

SG-SPRING SG, International Calling Rules

• SS 52-1971 RULES FOR THE USE OF UNITS OF THE INTERNATIONAL SYSTEM (SI)

NL-NEN, International Calling Rules

• NEN 1000-1993 Rules for the use of the International System of Units (SI)

IMO - International Maritime Organization, International Calling Rules

• IB904E-2005 Convention on the International Regulations for Preventing Collisions at Sea@ 1972 (Electronic edition: 2005)
• I240E-1991 International Code for the Safe Carriage of Grain in Bulk
• I155E-2001 International Code for Fire Safety Systems (FSS Code) (Resolution MSC.98(73))
• IMO-858E-1987 Guidelines on Surveys required by The 1978 SOLAS Protocol@ The International Bulk Chemical Code and The International Gas Carrier Code
• E185E-2005 2000 HSC Code INTERNATIONAL CODE OF SAFETY FOR HIGH-SPEED CRAFT@ 2000 Resolution MSC.97(73)
• IE260E-2009 International maritime Solid Bulk Cargoes Code (Includes Supplement)
• I116E-2003 ISPS Code: International Ship and Port Facility Security Code and SOLAS Amendments
• IA155E-2007 FSS Code International Code for Fire Safety Systems (Resolution MSC.98(73); Second Edition)
• E904E-2003 COLREG: Convention on the International Regulations for Preventing Collisions at Sea@ 1972 (Fourth Edition)

Taiwan Provincial Standard of the People's Republic of China, International Calling Rules

• CNS 13484-1995 Allocation of Loudness Ratings for International Telephone Connection

Association Francaise de Normalisation, International Calling Rules

• NF Z65-160:1990 Ccitt high level language (chill). (CCITT recommandation Z.200).

VE-FONDONORMA, International Calling Rules

• COVENIN 735-1974

International Organization for Standardization (ISO), International Calling Rules

• ISO/IEC 9496:1989 CCITT high level language (CHILL)
• ISO/IEC Directives Part 2:2011 Rules for the structure and drafting of International Standards
• ISO/TR 14600:2000 Gas cylinders - International quality conformance system - Basic rules

Standard Association of Australia （SAA）, International Calling Rules

• AS 1852.601:1988 International electrotechnical vocabulary - Generation, transmission and distribution of electricity - General
• AS/NZS 3829:1998 Wool - IWTO Staple Test Regulations

International Maritime Organization (IMO), International Calling Rules

• IMO IB904E-2005 Convention on the International Regulations for Preventing Collisions at Sea, 1972 (Electronic edition: 2005)
• IMO I240E-1991 International Code for the Safe Carriage of Grain in Bulk
• IMO 858E-1987 Guidelines on surveys required by the 1978 solas protocol, the international bulk chemical code and the international gas carrier code
• IMO IA185E-2008 2000 HSC Code INTERNATIONAL CODE OF SAFETY FOR HIGH-SPEED CRAFT, 2000 2008 Edition
• IMO IA155E-2007 FSS Code International Code for Fire Safety Systems (Resolution MSC.98(73); Second Edition)

Professional Standard - Postal Service, International Calling Rules

• YZ/T 0054-2001 Rules of Coding for International Postal Receptacles
• YZ/T 0057-2001 Rules of coding for international postal despatches
• YZ/T 0055-2001 Rules for Compilation of International Mail Codes
• YZ/T 0056-2001 International mail consignment unit coding rules

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China, International Calling Rules

• GB/T 16963-2010 Drafting rules for international trade contract codes
• GB/T 17298-2009 Drafting rules of the standards for international trade document form
• GB/T 28833-2012 Insuring and claiming procedures for international logistics legal liability insurance
• GB/T 26319-2010(英文版) Coding rules for international freight forwarding documents’ identifier
• GB/T 26319-2010 Coding rules for international freight forwarding documents' identifier
• GB/T 30058-2013 Rules for record filling and enquiry of international multimodal transportation documents

Institute of Electrical and Electronics Engineers (IEEE), International Calling Rules

• IEEE/IEC 63198-2775-2023 IEC/IEEE International Technical Guidelines for Smart Hydroelectric Power Plant
• IEEE 322-1971 IEEE Recommended Practice: Rules for the Use of Units of the International System of Units
• IEEE Std 322-1971*ANSI Z210.2-1972 IEEE Recommended Practice: Rules for the Use of Units of the International System of Units

ETSI - European Telecommunications Standards Institute, International Calling Rules

• PRI-ETS 300 101-1992 Integrated Services Digital Network (ISDN); International Digital Audiographic Teleconference
• I-ETS 300 101-1993 Integrated Services Digital Network (ISDN); International Digital Audiographic Teleconference
• PRETS 300 101-1990 Integrated Services Digital Network (ISDN) International Digital Audiographic Teleconference (T/N 33- 01)

IX-UIC, International Calling Rules

• UIC OR 421-2012 Rules for the consist and braking of international freight trains
• UIC OR 421-2006 Regulations for the consist and braking of international freight trains

Danish Standards Foundation, International Calling Rules

• DS/ISO 6936:1989 Information processing. Conversion between the two coded character sets of ISO 646 and ISO 6937-2 and the CCITT international telegraph alphabet No. 2 (ITA 2)
• DS/I-ETS 300101:1993 Integrated Services Digital Network (ISDN); International digital audiographic teleconference

国家市场监督管理总局、中国国家标准化管理委员会, International Calling Rules

• GB/T 36596-2018 Drafting rules for international trade commercial invoice identifier

Lithuanian Standards Office , International Calling Rules

• LST 1402-2-1995/1K-2004 International rules for seed testing. Sampling, definitions, methods
• LST 1402-2-1995 International rules for seed testing. Sampling, definitions, methods

IEEE - The Institute of Electrical and Electronics Engineers@ Inc., International Calling Rules

• IEEE 322-1972 Recommended Practice: Rules for the Use of Units of the International System of Units

Group Standards of the People's Republic of China, International Calling Rules

• T/CQILPA 0002-2023 Coding Rules for International Logistics

PL-PKN, International Calling Rules

• PN T01104-1990 Zasady podstawowe systemu IECzapewnienia jako?ci podzespo?ów elektronicznych (IECQ)

CH-SNV, International Calling Rules

• SN 181 129-1980 Mineral oil testsPotentiometrie Determination of the Total Acid Number (TAN)

CZ-CSN, International Calling Rules

• CSN 33 0050-601-1994 International Electrotechnical Vocabulary: Chapter 601: Generation, transmission and distribution of electricity — General

German Institute for Standardization, International Calling Rules

• DIN ISO 6936:2000 Information processing - Conversion between the two coded character sets of ISO 646 and ISO 6937-2 and the CCITT international telegraph alphabet No. 2 (ITA 2) (ISO 6936:1988)

British Standards Institution (BSI), International Calling Rules

• BS 6317:1982 Specification for simple telephones for connection to public switched telephone networks run by certain public telecommunication operators

TIA - Telecommunications Industry Association, International Calling Rules

• TSB29-A-1992 International Implementation of Cellular Radiotelephone Systems Compliant with ANSI/EIA/TIA-553

Others:   International Coding Rules, International conference call, International Coding Rules, International conference call, International Calling Rules, Symbols for national and international phone numbers, emails and web addresses, High Frequency Telephone Rules.