We offers a broad range of engineering and technical standards, specifications, codes in PDF for personal education purpose with affortable price. Any requirements please contact fdcrw@qq.com.

STANDARD SEARCH->ITU STANDARD LIST:

Total count:22354 records, Page:1 |2 |3 |4 |5 |6 |7 |8 |9 |10 |11 |12 |13 |14 |15 |16 |17 |18 |19 |20 |21 |22 |23 |24 |25 |26 |27 |28 |29 |30 |31 |32 |33 |34 |35 |36 |37 |38 |39 |40 |41 |42 |43 |44 |45 |

Pos standard Number publication date Language Description 1 ITU-T J.34 SPANISH-1988 1988-11-01 Spanish CHARACTERISTICS OF EQUIPMENT USED FOR SETTING UP 7 kHz TYPE SOUND-PROGRAMME CIRCUITS 2 ITU-T J.34 FRENCH-1988 1988-11-01 French CHARACTERISTICS OF EQUIPMENT USED FOR SETTING UP 7 kHz TYPE SOUND-PROGRAMME CIRCUITS 3 ITU-T J.34-1988 1988-11-01 English CHARACTERISTICS OF EQUIPMENT USED FOR SETTING UP 7 kHz TYPE SOUND-PROGRAMME CIRCUITS 4 ITU-T J.33 SPANISH-1988 1988-11-01 Spanish CHARACTERISTICS OF EQUIPMENT AND LINES USED FOR SETTING UP 6.4 kHz TYPE SOUND - PROGRAMME CIRCUITS 5 ITU-T J.33 FRENCH-1988 1988-11-01 French CHARACTERISTICS OF EQUIPMENT AND LINES USED FOR SETTING UP 6.4 kHz TYPE SOUND - PROGRAMME CIRCUITS 6 ITU-T J.33-1988 1988-11-01 English CHARACTERISTICS OF EQUIPMENT AND LINES USED FOR SETTING UP 6.4 kHz TYPE SOUND - PROGRAMME CIRCUITS 7 ITU-T J.31-1988 1988-11-01 English CHARACTERISTICS OF EQUIPMENT AND LINES USED FOR SETTING UP 15 kHz TYPE SOUND - PROGRAMME CIRCUITS 8 ITU-T J.23 SPANISH-1988 1988-11-01 Spanish PERFORMANCE CHARACTERISTICS OF 7 kHz TYPE (NARROW-BANDWIDTH) SOUND - PROGRAMME CIRCUITS 9 ITU-T J.23 FRENCH-1988 1988-11-01 French PERFORMANCE CHARACTERISTICS OF 7 kHz TYPE (NARROW-BANDWIDTH) SOUND - PROGRAMME CIRCUITS 10 ITU-T J.23-1988 1988-11-01 English PERFORMANCE CHARACTERISTICS OF 7 kHz TYPE (NARROW-BANDWIDTH) SOUND - PROGRAMME CIRCUITS 11 ITU-T S.12-1988 1988-11-01 English CONDITIONS THAT MUST BE SATISFIED BY SYNCHRONOUS SYSTEMS OPERATING IN CONNECTION WITH STANDARD 50-BAUD TELEPRINTER CIRCUITS 12 ITU-T S.11 SPANISH-1988 1988-11-01 Spanish USE OF START-STOP REPERFORATING EQUIPMENT FOR PERFORATED TAPE RETRANSMISSION 13 ITU-T S.11 FRENCH-1988 1988-11-01 French USE OF START-STOP REPERFORATING EQUIPMENT FOR PERFORATED TAPE RETRANSMISSION 14 ITU-T J.19 SPANISH-1988 1988-11-01 Spanish A CONVENTIONAL TEST SIGNAL SIMULATING SOUND - PROGRAMME SIGNALS FOR MEASURING INTERFERENCE IN OTHER CHANNELS 15 ITU-T J.19 FRENCH-1988 1988-11-01 French A CONVENTIONAL TEST SIGNAL SIMULATING SOUND - PROGRAMME SIGNALS FOR MEASURING INTERFERENCE IN OTHER CHANNELS 16 ITU-T J.19-1988 1988-11-01 English A CONVENTIONAL TEST SIGNAL SIMULATING SOUND - PROGRAMME SIGNALS FOR MEASURING INTERFERENCE IN OTHER CHANNELS 17 ITU-T J.18 SPANISH-1988 1988-11-01 Spanish CROSSTALK IN SOUND - PROGRAMME CIRCUITS SET UP ON CARRIER SYSTEMS 18 ITU-T J.18 FRENCH-1988 1988-11-01 French CROSSTALK IN SOUND - PROGRAMME CIRCUITS SET UP ON CARRIER SYSTEMS 19 ITU-T J.18-1988 1988-11-01 English CROSSTALK IN SOUND - PROGRAMME CIRCUITS SET UP ON CARRIER SYSTEMS 20 ITU-T J.17 SPANISH-1988 1988-11-01 Spanish PRE - EMPHASIS USED ON SOUND - PROGRAMME CIRCUITS 21 ITU-T J.17 FRENCH-1988 1988-11-01 French PRE - EMPHASIS USED ON SOUND - PROGRAMME CIRCUITS 22 ITU-T J.17-1988 1988-11-01 English PRE - EMPHASIS USED ON SOUND - PROGRAMME CIRCUITS 23 ITU-T J.16 SPANISH-1988 1988-11-01 Spanish Measurement of Weighted Noise in Sound - Programme Circuits 24 ITU-T J.16 FRENCH-1988 1988-11-01 French Measurement of Weighted Noise in Sound - Programme Circuits 25 ITU-T J.16-1988 1988-11-01 English Measurement of Weighted Noise in Sound - Programme Circuits 26 ITU-T J.15 FRENCH-1988 1988-11-01 French Lining - up and Monitoring an International Sound - Programme Connection 27 ITU-T J.15-1988 1988-11-01 English Lining - up and Monitoring an International Sound - Programme Connection 28 ITU-T J.14 SPANISH-1988 1988-11-01 Spanish RELATIVE LEVELS AND IMPEDANCES ON AN INTERNATIONAL SOUND - PROGRAMME CONNECTION 29 ITU-T J.14 FRENCH-1988 1988-11-01 French RELATIVE LEVELS AND IMPEDANCES ON AN INTERNATIONAL SOUND - PROGRAMME CONNECTION 30 ITU-T J.14-1988 1988-11-01 English RELATIVE LEVELS AND IMPEDANCES ON AN INTERNATIONAL SOUND - PROGRAMME CONNECTION 31 ITU-T J.12 SPANISH-1988 1988-11-01 Spanish TYPES OF SOUND-PROGRAMME CIRCUITS ESTABLISHED OVER THE INTERNATIONAL TELEPHONE NETWORK 32 ITU-T J.12 FRENCH-1988 1988-11-01 French TYPES OF SOUND-PROGRAMME CIRCUITS ESTABLISHED OVER THE INTERNATIONAL TELEPHONE NETWORK 33 ITU-T J.12-1988 1988-11-01 English TYPES OF SOUND-PROGRAMME CIRCUITS ESTABLISHED OVER THE INTERNATIONAL TELEPHONE NETWORK 34 ITU-T J.11 SPANISH-1988 1988-11-01 Spanish HYPOTHETICAL REFERENCE CIRCUITS FOR SOUND-PROGRAMME TRANSMISSIONS 35 ITU-T J.11 FRENCH-1988 1988-11-01 French HYPOTHETICAL REFERENCE CIRCUITS FOR SOUND-PROGRAMME TRANSMISSIONS 36 ITU-T J.11-1988 1988-11-01 English HYPOTHETICAL REFERENCE CIRCUITS FOR SOUND-PROGRAMME TRANSMISSIONS 37 ITU-T S.11-1988 1988-11-01 English USE OF START - STOP REPERFORATING EQUIPMENT FOR PERFORATED TAPE RETRANSMISSION 38 ITU-T S.10 SPANISH-1988 1988-11-01 Spanish TRANSMISSION AT REDUCED CHARACTER TRANSFER RATE OVER A STANDARDIZED 50-BAUD TELEGRAPH CHANNEL 39 ITU-T S.10 FRENCH-1988 1988-11-01 French TRANSMISSION AT REDUCED CHARACTER TRANSFER RATE OVER A STANDARDIZED 50-BAUD TELEGRAPH CHANNEL 40 ITU-T S.10-1988 1988-11-01 English TRANSMISSION AT REDUCED CHARACTER TRANSFER RATE OVER A STANDARDIZED 50-BAUD TELEGRAPH CHANNEL 41 ITU-T S.9 SPANISH-1988 1988-11-01 Spanish SWITCHING EQUIPMENT OF START - STOP APPARATUS 42 ITU-T S.9 FRENCH-1988 1988-11-01 French SWITCHING EQUIPMENT OF START - STOP APPARATUS 43 ITU-T I.605 SPANISH-1988 1988-11-01 Spanish Application of maintenance principles to static multiplexed ISDN basic accesses 44 ITU-T I.605 FRENCH-1988 1988-11-01 French Application of maintenance principles to static multiplexed ISDN basic accesses 45 ITU-T I.605-1988 1988-11-01 English Application of maintenance principles to static multiplexed ISDN basic accesses 46 ITU-T I.604 SPANISH-1988 1988-11-01 Spanish Application of maintenance principles to ISDN primary rate accesses 47 ITU-T I.604 FRENCH-1988 1988-11-01 French Application of maintenance principles to ISDN primary rate accesses 48 ITU-T I.604-1988 1988-11-01 English Application of maintenance principles to ISDN primary rate accesses 49 ITU-T I.603 SPANISH-1988 1988-11-01 Spanish Application of maintenance principles to ISDN basic accesses 50 ITU-T I.603 FRENCH-1988 1988-11-01 French Application of maintenance principles to ISDN basic accesses 51 ITU-T I.603-1988 1988-11-01 English Application of maintenance principles to ISDN basic accesses 52 ITU-T I.602 SPANISH-1988 1988-11-01 Spanish Application of maintenance principles to ISDN subscriber installations 53 ITU-T I.602 FRENCH-1988 1988-11-01 French Application of maintenance principles to ISDN subscriber installations 54 ITU-T I.602-1988 1988-11-01 English Application of maintenance principles to ISDN subscriber installations 55 ITU-T I.601 SPANISH-1988 1988-11-01 Spanish GENERAL MAINTENANCE PRINCIPLES OF ISDN SUBSCRIBER ACCESS AND SUBSCRIBER INSTALLATION 56 ITU-T I.601 FRENCH-1988 1988-11-01 French GENERAL MAINTENANCE PRINCIPLES OF ISDN SUBSCRIBER ACCESS AND SUBSCRIBER INSTALLATION 57 ITU-T I.601-1988 1988-11-01 English General Maintenance Principles of ISDN Subscriber Access and Subscriber Installation - Integrated Services Digital Network (ISDN) Maintenance Principles - 14 pp 58 ITU-T S.9-1988 1988-11-01 English SWITCHING EQUIPMENT OF START - STOP APPARATUS 59 ITU-T S.7 SPANISH-1988 1988-11-01 Spanish CONTROL OF TELEPRINTER MOTORS 60 ITU-T S.7 FRENCH-1988 1988-11-01 French CONTROL OF TELEPRINTER MOTORS 61 ITU-T S.7-1988 1988-11-01 English CONTROL OF TELEPRINTER MOTORS 62 ITU-T S.6 SPANISH-1988 1988-11-01 Spanish CHARACTERISTICS OF ANSWERBACK UNITS (ITA2) 63 ITU-T I.130 SPANISH-1988 1988-11-01 Spanish METHOD FOR THE CHARACTERIZATION OF TELECOMMUNICATION SERVICES SUPPORTED BY AN ISDN AND NETWORK CAPABILITIES OF AN ISDN 64 ITU-T M.665-1988 1988-11-01 English TESTING OF ECHO CANCELLERS 65 ITU-T N.3-1988 1988-11-01 English CONTROL CIRCUITS 66 ITU-T I.130 FRENCH-1988 1988-11-01 French METHOD FOR THE CHARACTERIZATION OF TELECOMMUNICATION SERVICES SUPPORTED BY AN ISDN AND NETWORK CAPABILITIES OF AN ISDN 67 ITU-T R.2-1988 1988-11-01 English Element Error Rate 68 ITU-T V.41-1988 1988-11-01 English CODE-INDEPENDENT ERROR-CONTROL SYSTEM 69 ITU-T I.130-1988 1988-11-01 English METHOD FOR THE CHARACTERIZATION OF TELECOMMUNICATION SERVICES SUPPORTED BY AN ISDN AND NETWORK CAPABILITIES OF AN ISDN 70 ITU-T R.150 SPANISH-1988 1988-11-01 Spanish AUTOMATIC PROTECTION SWITCHING OF DUAL DIVERSITY BEARERS 71 ITU-T S.6 FRENCH-1988 1988-11-01 French CHARACTERISTICS OF ANSWERBACK UNITS (ITA2) 72 ITU-T S.6-1988 1988-11-01 English CHARACTERISTICS OF ANSWERBACK UNITS (ITA2) 73 ITU-T S.5 SPANISH-1988 1988-11-01 Spanish STANDARDIZATION OF PAGE - PRINTING START - STOP EQUIPMENT AND COOPERATION BETWEEN PAGE - PRINTING AND TAPE - PRINTING START - STOP EQUIPMENT (ITA2) 74 ITU-T R.140-1988 1988-11-01 English DEFINITIONS OF ESSENTIAL TECHNICAL TERMS IN THE FIELD OF TELEGRAPH TRANSMISSION 75 ITU-T I.511 SPANISH-1988 1988-11-01 Spanish ISDN-TO-ISDN LAYER 1 INTERNETWORK INTERFACE 76 ITU-T I.511 FRENCH-1988 1988-11-01 French ISDN-TO-ISDN LAYER 1 INTERNETWORK INTERFACE 77 ITU-T I.511-1988 1988-11-01 English ISDN-TO-ISDN LAYER 1 INTERNETWORK INTERFACE 78 ITU-T R.122 SPANISH-1988 1988-11-01 Spanish SUMMARY OF TRANSMISSION PLANS FOR RATES UP TO 300 BAUDS 79 ITU-T R.122 FRENCH-1988 1988-11-01 French SUMMARY OF TRANSMISSION PLANS FOR RATES UP TO 300 BAUDS 80 ITU-T R.122-1988 1988-11-01 English SUMMARY OF TRANSMISSION PLANS FOR RATES UP TO 300 BAUDS 81 ITU-T R.121 SPANISH-1988 1988-11-01 Spanish STANDARD LIMITS OF TRANSMISSION QUALITY FOR START-STOP USER CLASSES OF SERVICE 1 AND 2 ON ANISOCHRONOUS DATA NETWORKS 82 ITU-T R.121 FRENCH-1988 1988-11-01 French STANDARD LIMITS OF TRANSMISSION QUALITY FOR START - STOP USER CLASSES OF SERVICE 1 AND 2 ON ANISOCHRONOUS DATA NETWORKS 83 ITU-T I.470 SPANISH-1988 1988-11-01 Spanish RELATIONSHIP OF TERMINAL FUNCTIONS TO ISDN 84 ITU-T I.470 FRENCH-1988 1988-11-01 French RELATIONSHIP OF TERMINAL FUNCTIONS TO ISDN 85 ITU-T I.470-1988 1988-11-01 English RELATIONSHIP OF TERMINAL FUNCTIONS TO ISDN 86 ITU-T R.103-1988 1988-11-01 English CODE AND SPEED-DEPENDANT TDM 600 BIT/S SYSTEM FOR USE IN POINT-TO-POINT OR BRANCH-LINE MULDEX CONFIGURATIONS 87 ITU-T R.121-1988 1988-11-01 English STANDARD LIMITS OF TRANSMISSION QUALITY FOR START-STOP USER CLASSES OF SERVICE 1 AND 2 ON ANISOCHRONOUS DATA NETWORKS 88 ITU-T S.5 FRENCH-1988 1988-11-01 French STANDARDIZATION OF PAGE - PRINTING START - STOP EQUIPMENT AND COOPERATION BETWEEN PAGE - PRINTING AND TAPE - PRINTING START - STOP EQUIPMENT (ITA2) 89 ITU-T S.5-1988 1988-11-01 English STANDARDIZATION OF PAGE - PRINTING START - STOP EQUIPMENT AND COOPERATION BETWEEN PAGE - PRINTING AND TAPE - PRINTING START - STOP EQUIPMENT (ITA2) 90 ITU-T S.3 SPANISH-1988 1988-11-01 Spanish TRANSMISSION CHARACTERISTICS OF THE LOCAL END WITH ITS TERMINATION (ITA2) 91 ITU-T R.120 SPANISH-1988 1988-11-01 Spanish TOLERABLE LIMITS FOR THE DEGREE OF ISOCHRONOUS DISTORTION OF CODE - INDEPENDENT TELEGRAPH CIRCUITS OPERATING AT MODULATION RATES OF 75, 100 AND 200 BAUDS 92 ITU-T R.120 FRENCH-1988 1988-11-01 French TOLERABLE LIMITS FOR THE DEGREE OF ISOCHRONOUS DISTORTION OF CODE-INDEPENDENT TELEGRAPH CIRCUITS OPERATING AT MODULATION RATES OF 75, 100 AND 200 BAUDS 93 ITU-T S.3 FRENCH-1988 1988-11-01 French TRANSMISSION CHARACTERISTICS OF THE LOCAL END WITH ITS TERMINATION (ITA2) 94 ITU-T S.3-1988 1988-11-01 English TRANSMISSION CHARACTERISTICS OF THE LOCAL END WITH ITS TERMINATION (ITA2) 95 ITU-T I.110-1988 1988-11-01 English Preamble and General Structure of the I- Series Recommendations for the Integrated Services Digital Network (ISDN) - Integrated Services Digital Network (ISDN) - General Structure and Service Capabilities - Study Group XVIII; 7 pp; Cancelled 96 ITU-T S.2 SPANISH-1988 1988-11-01 Spanish CODING SCHEME USING INTERNATIONAL TELEGRAPH ALPHABET No. 2 (ITA2) TO ALLOW THE TRANSMISSION OF CAPITAL AND SMALL LETTERS 97 ITU-T S.2 FRENCH-1988 1988-11-01 French CODING SCHEME USING INTERNATIONAL TELEGRAPH ALPHABET No. 2 (ITA2) TO ALLOW THE TRANSMISSION OF CAPITAL AND SMALL LETTERS 98 ITU-T S.2-1988 1988-11-01 English CODING SCHEME USING INTERNATIONAL TELEGRAPH ALPHABET No. 2 (ITA2) TO ALLOW THE TRANSMISSION OF CAPITAL AND SMALL LETTERS 99 ITU-T I.421 SPANISH-1988 1988-11-01 Spanish PRIMARY RATE USER-NETWORK INTERFACE 100 ITU-T I.421 FRENCH-1988 1988-11-01 French PRIMARY RATE USER-NETWORK INTERFACE 101 ITU-T I.421-1988 1988-11-01 English PRIMARY RATE USER-NETWORK INTERFACE 102 ITU-T I.420 SPANISH-1988 1988-11-01 Spanish BASIC USER-NETWORK INTERFACE 103 ITU-T I.420 FRENCH-1988 1988-11-01 French BASIC USER-NETWORK INTERFACE 104 ITU-T I.420-1988 1988-11-01 English BASIC USER-NETWORK INTERFACE 105 ITU-T I.412 SPANISH-1988 1988-11-01 Spanish ISDN USER-NETWORK INTERFACES INTERFACE STRUCTURES AND ACCESS CAPABILITIES 106 ITU-T I.412 FRENCH-1988 1988-11-01 French ISDN USER-NETWORK INTERFACES INTERFACE STRUCTURES AND ACCESS CAPABILITIES 107 ITU-T I.412-1988 1988-11-01 English ISDN USER-NETWORK INTERFACES INTERFACE STRUCTURES AND ACCESS CAPABILITIES 108 ITU-T R.103 FRENCH-1988 1988-11-01 French CODE AND SPEED-DEPENDANT TDM 600 BIT/S SYSTEM FOR USE IN POINT-TO-POINT OR BRANCH-LINE MULDEX CONFIGURATIONS 109 ITU-T R.103 SPANISH-1988 1988-11-01 Spanish CODE AND SPEED-DEPENDANT TDM 600 BIT/S SYSTEM FOR USE IN POINT-TO-POINT OR BRANCH-LINE MULDEX CONFIGURATIONS 110 ITU-T I.410 SPANISH-1988 1988-11-01 Spanish GENERAL ASPECTS AND PRINCIPLES RELATING TO RECOMMENDATIONS ON ISDN USER-NETWORK INTERFACES 111 ITU-T I.410 FRENCH-1988 1988-11-01 French GENERAL ASPECTS AND PRINCIPLES RELATING TO RECOMMENDATIONS ON ISDN USER-NETWORK INTERFACES 112 ITU-T I.410-1988 1988-11-01 English GENERAL ASPECTS AND PRINCIPLES RELATING TO RECOMMENDATIONS ON ISDN USER-NETWORK INTERFACES 113 ITU-T R.49 FRENCH-1988 1988-11-01 French INTERBAND TELEGRAPHY OVER OPEN - WIRE 3-CHANNEL CARRIER SYSTEMS 114 ITU-T R.49 SPANISH-1988 1988-11-01 Spanish INTERBAND TELEGRAPHY OVER OPEN - WIRE 3-CHANNEL CARRIER SYSTEMS 115 ITU-T R.50-1988 1988-11-01 English TOLERABLE LIMITS FOR THE DEGREE OF ISOCHRONOUS DISTORTION OF CODE - INDEPENDENT 50-BAUD TELEGRAPH CIRCUITS 116 ITU-T R.50 FRENCH-1988 1988-11-01 French TOLERABLE LIMITS FOR THE DEGREE OF ISOCHRONOUS DISTORTION OF CODE - INDEPENDENT 50-BAUD TELEGRAPH CIRCUITS 117 ITU-T R.50 SPANISH-1988 1988-11-01 Spanish TOLERABLE LIMITS FOR THE DEGREE OF ISOCHRONOUS DISTORTION OF CODE - INDEPENDENT 50-BAUD TELEGRAPH CIRCUITS 118 ITU-T R.51-1988 1988-11-01 English STANDARDIZED TEXT FOR DISTORTION TESTING OF THE CODE - INDEPENDENT ELEMENTS OF A COMPLETE CIRCUIT 119 ITU-T R.51 BIS-1988 1988-11-01 English STANDARDIZED TEXT FOR TESTING THE ELEMENTS OF A COMPLETE CIRCUIT 120 ITU-T R.51 BIS FRENCH-1988 1988-11-01 French STANDARDIZED TEXT FOR TESTING THE ELEMENTS OF A COMPLETE CIRCUIT 121 ITU-T R.51 BIS SPANISH-1988 1988-11-01 Spanish STANDARDIZED TEXT FOR TESTING THE ELEMENTS OF A COMPLETE CIRCUIT 122 ITU-T R.51 FRENCH-1988 1988-11-01 French STANDARDIZED TEXT FOR DISTORTION TESTING OF THE CODE - INDEPENDENT ELEMENTS OF A COMPLETE CIRCUIT 123 ITU-T R.51 SPANISH-1988 1988-11-01 Spanish STANDARDIZED TEXT FOR DISTORTION TESTING OF THE CODE - INDEPENDENT ELEMENTS OF A COMPLETE CIRCUIT 124 ITU-T R.52-1988 1988-11-01 English STANDARDIZATION OF INTERNATIONAL TEXTS FOR THE MEASUREMENT OF THE MARGIN OF START - STOP EQUIPMENT 125 ITU-T R.52 FRENCH-1988 1988-11-01 French STANDARDIZATION OF INTERNATIONAL TEXTS FOR THE MEASUREMENT OF THE MARGIN OF START - STOP EQUIPMENT 126 ITU-T R.52 SPANISH-1988 1988-11-01 Spanish STANDARDIZATION OF INTERNATIONAL TEXTS FOR THE MEASUREMENT OF THE MARGIN OF START - STOP EQUIPMENT 127 ITU-T R.53-1988 1988-11-01 English PERMISSIBLE LIMITS FOR THE DEGREE OF DISTORTION ON AN INTERNATIONAL 50-BAUD/120-HZ VFT CHANNEL (FREQUENCY AND AMPLITUDE MODULATION) 128 ITU-T R.53 FRENCH-1988 1988-11-01 French PERMISSIBLE LIMITS FOR THE DEGREE OF DISTORTION ON AN INTERNATIONAL 50-BAUD/120-HZ VFT CHANNEL (FREQUENCY AND AMPLITUDE MODULATION) 129 ITU-T R.53 SPANISH-1988 1988-11-01 Spanish PERMISSIBLE LIMITS FOR THE DEGREE OF DISTORTION ON AN INTERNATIONAL 50-BAUD/120-HZ VFT CHANNEL (FREQUENCY AND AMPLITUDE MODULATION) 130 ITU-T R.57-1988 1988-11-01 English STANDARD LIMITS OF TRANSMISSION QUALITY FOR PLANNING CODE - INDEPENDENT INTERNATIONAL POINT-TO-POINT TELEGRAPH COMMUNICATIONS AND SWITCHED NETWORKS USING 50-BAUD START-STOP EQUIPMENT 131 ITU-T R.57 FRENCH-1988 1988-11-01 French STANDARD LIMITS OF TRANSMISSION QUALITY FOR PLANNING CODE - INDEPENDENT INTERNATIONAL POINT-TO-POINT TELEGRAPH COMMUNICATIONS AND SWITCHED NETWORKS USING 50-BAUD START-STOP EQUIPMENT 132 ITU-T R.57 SPANISH-1988 1988-11-01 Spanish STANDARD LIMITS OF TRANSMISSION QUALITY FOR PLANNING CODE - INDEPENDENT INTERNATIONAL POINT-TO-POINT TELEGRAPH COMMUNICATIONS AND SWITCHED NETWORKS USING 50-BAUD START-STOP EQUIPMENT 133 ITU-T R.58-1988 1988-11-01 English STANDARD LIMITS OF TRANSMISSION QUALITY FOR THE GENTEX AND TELEX NETWORKS 134 ITU-T R.58 BIS-1988 1988-11-01 English LIMITS ON SIGNAL TRANSFER DELAY FOR TELEGRAPH, TELEX AND GENTEX NETWORKS 135 ITU-T R.58 BIS FRENCH-1988 1988-11-01 French LIMITS ON SIGNAL TRANSFER DELAY FOR TELEGRAPH, TELEX AND GENTEX NETWORKS 136 ITU-T R.58 BIS SPANISH-1988 1988-11-01 Spanish LIMITS ON SIGNAL TRANSFER DELAY FOR TELEGRAPH, TELEX AND GENTEX NETWORKS 137 ITU-T R.59-1988 1988-11-01 English Interface Requirements for 50-Baud Start-Stop Telegraph Transmission in the Maritime Mobile Satellite Service - Telegraph Transmission (Study Group IX) 2 pp 138 ITU-T R.60-1988 1988-11-01 English CONDITIONS TO BE FULFILLED BY REGENERATIVE REPEATERS FOR START-STOP SIGNALS OF INTERNATIONAL TELEGRAPH ALPHABET No. 2 139 ITU-T I.340 SPANISH-1988 1988-11-01 Spanish ISDN Connection Types 140 ITU-T I.340 FRENCH-1988 1988-11-01 French ISDN Connection Types 141 ITU-T I.340-1988 1988-11-01 English ISDN Connection Types 142 ITU-T X.51-1988 1988-11-01 English FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING 10-bit ENVELOPE STRUCTURE 143 ITU-T X.51 BIS FRENCH-1988 1988-11-01 French 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 144 ITU-T X.51 BIS SPANISH-1988 1988-11-01 Spanish 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 145 ITU-T X.51 FRENCH-1988 1988-11-01 French FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING 10-bit ENVELOPE STRUCTURE 146 ITU-T X.51 SPANISH-1988 1988-11-01 Spanish FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING 10-bit ENVELOPE STRUCTURE 147 ITU-T X.52 FRENCH-1988 1988-11-01 French METHOD OF ENCODING ANISOCHRONOUS SIGNALS INTO A SYNCHRONOUS USER BEARER 148 ITU-T X.52-1988 1988-11-01 English METHOD OF ENCODING ANISOCHRONOUS SIGNALS INTO A SYNCHRONOUS USER BEARER 149 ITU-T X.52 SPANISH-1988 1988-11-01 Spanish METHOD OF ENCODING ANISOCHRONOUS SIGNALS INTO A SYNCHRONOUS USER BEARER 150 ITU-T R.80 FRENCH-1988 1988-11-01 French CAUSES OF DISTURBANCES TO SIGNALS IN VFT CHANNELS AND THEIR EFFECT ON TELEGRAPH DISTORTION 151 ITU-T R.80 SPANISH-1988 1988-11-01 Spanish CAUSES OF DISTURBANCES TO SIGNALS IN VFT CHANNELS AND THEIR EFFECT ON TELEGRAPH DISTORTION 152 ITU-T X.54-1988 1988-11-01 English ALLOCATION OF CHANNELS ON INTERNATIONAL MULTIPLEX LINKS AT 64 kbit/s 153 ITU-T X.54 FRENCH-1988 1988-11-01 French ALLOCATION OF CHANNELS ON INTERNATIONAL MULTIPLEX LINKS AT 64 kbit/s 154 ITU-T X.54 SPANISH-1988 1988-11-01 Spanish ALLOCATION OF CHANNELS ON INTERNATIONAL MULTIPLEX LINKS AT 64 kbit/s 155 ITU-T X.55-1988 1988-11-01 English INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING A 6 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 156 ITU-T X.55 FRENCH-1988 1988-11-01 French INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING A 6 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 157 ITU-T X.55 SPANISH-1988 1988-11-01 Spanish INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING A 6 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 158 ITU-T X.56-1988 1988-11-01 English INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING AN 8 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 159 ITU-T X.56 FRENCH-1988 1988-11-01 French INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING AN 8 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 160 ITU-T X.56 SPANISH-1988 1988-11-01 Spanish INTERFACE BETWEEN SYNCHRONOUS DATA NETWORKS USING AN 8 + 2 ENVELOPE STRUCTURE AND SINGLE CHANNEL PER CARRIER (SCPC) SATELLITE CHANNELS 161 ITU-T X.57-1988 1988-11-01 English METHOD OF TRANSMITTING A SINGLE LOWER SPEED DATA CHANNEL ON A 64 kbit/s DATA STREAM 162 ITU-T X.57 FRENCH-1988 1988-11-01 French METHOD OF TRANSMITTING A SINGLE LOWER SPEED DATA CHANNEL ON A 64 kbit/s DATA STREAM 163 ITU-T X.57 SPANISH-1988 1988-11-01 Spanish METHOD OF TRANSMITTING A SINGLE LOWER SPEED DATA CHANNEL ON A 64 kbit/s DATA STREAM 164 ITU-T X.58-1988 1988-11-01 English FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS NON-SWITCHED DATA NETWORKS USING NO ENVELOPE STRUCTURE 165 ITU-T X.58 FRENCH-1988 1988-11-01 French FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS NON-SWITCHED DATA NETWORKS USING NO ENVELOPE STRUCTURE 166 ITU-T X.58 SPANISH-1988 1988-11-01 Spanish FUNDAMENTAL PARAMETERS OF A MULTIPLEXING SCHEME FOR THE INTERNATIONAL INTERFACE BETWEEN SYNCHRONOUS NON-SWITCHED DATA NETWORKS USING NO ENVELOPE STRUCTURE 167 ITU-T X.60-1988 1988-11-01 English COMMON CHANNEL SIGNALLING FOR CIRCUIT SWITCHED DATA APPLICATIONS 168 ITU-T X.60 FRENCH-1988 1988-11-01 French COMMON CHANNEL SIGNALLING FOR CIRCUIT SWITCHED DATA APPLICATIONS 169 ITU-T X.60 SPANISH-1988 1988-11-01 Spanish COMMON CHANNEL SIGNALLING FOR CIRCUIT SWITCHED DATA APPLICATIONS 170 ITU-T X.61-1988 1988-11-01 English SIGNALLING SYSTEM No. 7 - DATA USER PART 171 ITU-T X.61 FRENCH-1988 1988-11-01 French SIGNALLING SYSTEM No. 7 - DATA USER PART 172 ITU-T X.61 SPANISH-1988 1988-11-01 Spanish SIGNALLING SYSTEM No. 7 - DATA USER PART 173 ITU-T X.70 FRENCH-1988 1988-11-01 French TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM FOR START-STOP SERVICES ON INTERNATIONAL CIRCUITS BETWEEN ANISOCHRONOUS DATA NETWORKS 174 ITU-T X.70-1988 1988-11-01 English TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM FOR START - STOP SERVICES ON INTERNATIONAL CIRCUITS BETWEEN ANISOCHRONOUS DATA NETWORKS 175 ITU-T X.70 SPANISH-1988 1988-11-01 Spanish TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM FOR START-STOP SERVICES ON INTERNATIONAL CIRCUITS BETWEEN ANISOCHRONOUS DATA NETWORKS 176 ITU-T X.71-1988 1988-11-01 English DECENTRALIZED TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM ON INTERNATIONAL CIRCUITS BETWEEN SYNCHRONOUS DATA NETWORKS 177 ITU-T X.71 FRENCH-1988 1988-11-01 French DECENTRALIZED TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM ON INTERNATIONAL CIRCUITS BETWEEN SYNCHRONOUS DATA NETWORKS 178 ITU-T X.71SPANISH-1988 1988-11-01 Spanish DECENTRALIZED TERMINAL AND TRANSIT CONTROL SIGNALLING SYSTEM ON INTERNATIONAL CIRCUITS BETWEEN SYNCHRONOUS DATA NETWORKS 179 ITU-T V.21 SPANISH-1988 1988-11-01 Spanish 300 BITS PER SECOND DUPLEX MODEM STANDARDIZED FOR USE IN THE GENERAL SWITCHED TELEPHONE NETWORK 180 ITU-T Q.603 SPANISH-1988 1988-11-01 Spanish INTERWORKING OF SIGNALLING SYSTEMS - EVENTS 181 ITU-T V.21 FRENCH-1988 1988-11-01 French 300 BITS PER SECOND DUPLEX MODEM STANDARDIZED FOR USE IN THE GENERAL SWITCHED TELEPHONE NETWORK 182 ITU-T Q.603 FRENCH-1988 1988-11-01 French INTERWORKING OF SIGNALLING SYSTEMS - EVENTS 183 ITU-T V.21-1988 1988-11-01 English 300 BITS PER SECOND DUPLEX MODEM STANDARDIZED FOR USE IN THE GENERAL SWITCHED TELEPHONE NETWORK 184 ITU-T Q.603-1988 1988-11-01 English INTERWORKING OF SIGNALLING SYSTEMS - EVENTS 185 ITU-T V.19 SPANISH-1988 1988-11-01 Spanish MODEMS FOR PARALLEL DATA TRANSMISSION USING TELEPHONE SIGNALLING FREQUENCIES 186 ITU-T V.19 FRENCH-1988 1988-11-01 French MODEMS FOR PARALLEL DATA TRANSMISSION USING TELEPHONE SIGNALLING FREQUENCIES 187 ITU-T X.80-1988 1988-11-01 English INTERWORKING OF INTEREXCHANGE SIGNALLING SYSTEMS FOR CIRCUIT SWITCHED DATA SERVICES 188 ITU-T X.80 FRENCH-1988 1988-11-01 French INTERWORKING OF INTEREXCHANGE SIGNALLING SYSTEMS FOR CIRCUIT SWITCHED DATA SERVICES 189 ITU-T X.80 SPANISH-1988 1988-11-01 Spanish INTERWORKING OF INTEREXCHANGE SIGNALLING SYSTEMS FOR CIRCUIT SWITCHED DATA SERVICES 190 ITU-T X.81-1988 1988-11-01 English INTERWORKING BETWEEN AN ISDN CIRCUIT-SWITCHED AND A CIRCUIT-SWITCHED PUBLIC DATA NETWORK (CSPDN) 191 ITU-T X.81 FRENCH-1988 1988-11-01 French INTERWORKING BETWEEN AN ISDN CIRCUIT-SWITCHED AND A CIRCUIT-SWITCHED PUBLIC DATA NETWORK (CSPDN) 192 ITU-T X.81 SPANISH-1988 1988-11-01 Spanish INTERWORKING BETWEEN AN ISDN CIRCUIT-SWITCHED AND A CIRCUIT-SWITCHED PUBLIC DATA NETWORK (CSPDN) 193 ITU-T X.82-1988 1988-11-01 English DETAILED ARRANGEMENTS FOR INTERWORKING BETWEEN CSPDNS AND PSPDNS BASED ON RECOMMENDATION T.70 194 ITU-T X.82 FRENCH-1988 1988-11-01 French DETAILED ARRANGEMENTS FOR INTERWORKING BETWEEN CSPDNS AND PSPDNS BASED ON RECOMMENDATION T.70 195 ITU-T X.82 SPANISH-1988 1988-11-01 Spanish DETAILED ARRANGEMENTS FOR INTERWORKING BETWEEN CSPDNS AND PSPDNS BASED ON RECOMMENDATION T.70 196 ITU-T Q.702-1988 1988-11-01 English SIGNALLING DATA LINK 197 ITU-T Q.544 FRENCH-1988 1988-11-01 French DIGITAL EXCHANGE MEASUREMENTS 198 ITU-T Q.544 SPANISH-1988 1988-11-01 Spanish DIGITAL EXCHANGE MEASUREMENTS 199 ITU-T Q.544-1988 1988-11-01 English DIGITAL EXCHANGE MEASUREMENTS 200 ITU-T X.92-1988 1988-11-01 English HYPOTHETICAL REFERENCE CONNECTIONS FOR PUBLIC SYNCHRONOUS DATA NETWORKS 201 ITU-T X.92 FRENCH-1988 1988-11-01 French HYPOTHETICAL REFERENCE CONNECTIONS FOR PUBLIC SYNCHRONOUS DATA NETWORKS 202 ITU-T X.92 SPANISH-1988 1988-11-01 Spanish HYPOTHETICAL REFERENCE CONNECTIONS FOR PUBLIC SYNCHRONOUS DATA NETWORKS 203 ITU-T R.81-1988 1988-11-01 English MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES 204 ITU-T R.81 FRENCH-1988 1988-11-01 French MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES 205 ITU-T Q.522 SPANISH-1988 1988-11-01 Spanish DIGITAL EXCHANGE CONNECTIONS, SIGNALLING AND ANCILLARY FUNCTIONS 206 ITU-T Q.522 FRENCH-1988 1988-11-01 French DIGITAL EXCHANGE CONNECTIONS, SIGNALLING AND ANCILLARY FUNCTIONS 207 ITU-T Q.522-1988 1988-11-01 English DIGITAL EXCHANGE CONNECTIONS, SIGNALLING AND ANCILLARY FUNCTIONS 208 ITU-T R.81 SPANISH-1988 1988-11-01 Spanish MAXIMUM ACCEPTABLE LIMIT FOR THE DURATION OF INTERRUPTION OF TELEGRAPH CHANNELS ARISING FROM FAILURE OF THE NORMAL POWER SUPPLIES 209 ITU-T V.16 SPANISH-1988 1988-11-01 Spanish MEDICAL ANALOGUE DATA TRANSMISSION MODEMS 210 ITU-T V.16 FRENCH-1988 1988-11-01 French MEDICAL ANALOGUE DATA TRANSMISSION MODEMS 211 ITU-T V.16-1988 1988-11-01 English MEDICAL ANALOGUE DATA TRANSMISSION MODEMS 212 ITU-T V.15 SPANISH-1988 1988-11-01 Spanish USE OF ACOUSTIC COUPLING FOR DATA TRANSMISSION 213 ITU-T V.15 FRENCH-1988 1988-11-01 French USE OF ACOUSTIC COUPLING FOR DATA TRANSMISSION 214 ITU-T V.15-1988 1988-11-01 English USE OF ACOUSTIC COUPLING FOR DATA TRANSMISSION 215 ITU-T Q.707-1988 1988-11-01 English TESTING AND MAINTENANCE 216 ITU-T Q.707 FRENCH-1988 1988-11-01 French TESTING AND MAINTENANCE 217 ITU-T Q.707 SPANISH-1988 1988-11-01 Spanish TESTING AND MAINTENANCE 218 ITU-T V.7 SPANISH-1988 1988-11-01 Spanish DEFINITIONS OF TERMS CONCERNING DATA COMMUNICATION OVER THE TELEPHONE NETWORK 219 ITU-T V.7 FRENCH-1988 1988-11-01 French DEFINITIONS OF TERMS CONCERNING DATA COMMUNICATION OVER THE TELEPHONE NETWORK 220 ITU-T V.7-1988 1988-11-01 English DEFINITIONS OF TERMS CONCERNING DATA COMMUNICATION OVER THE TELEPHONE NETWORK 221 ITU-T Q.511 SPANISH-1988 1988-11-01 Spanish EXCHANGE INTERFACES TOWARDS OTHER EXCHANGES 222 ITU-T Q.511 FRENCH-1988 1988-11-01 French EXCHANGE INTERFACES TOWARDS OTHER EXCHANGES 223 ITU-T Q.511-1988 1988-11-01 English EXCHANGE INTERFACES TOWARDS OTHER EXCHANGES 224 ITU-T Q.500 SPANISH-1988 1988-11-01 Spanish DIGITAL LOCAL, COMBINED, TRANSIT AND INTERNATIONAL EXCHANGES - INTRODUCTION AND FIELD OF APPLICATION 225 ITU-T Q.500 FRENCH-1988 1988-11-01 French DIGITAL LOCAL, COMBINED, TRANSIT AND INTERNATIONAL EXCHANGES - INTRODUCTION AND FIELD OF APPLICATION 226 ITU-T X.130-1988 1988-11-01 English CALL PROCESSING DELAYS IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 227 ITU-T X.130 FRENCH-1988 1988-11-01 French CALL PROCESSING DELAYS IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 228 ITU-T X.130 SPANISH-1988 1988-11-01 Spanish CALL PROCESSING DELAYS IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 229 ITU-T X.131 FRENCH-1988 1988-11-01 French CALL BLOCKING IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 230 ITU-T X.131-1988 1988-11-01 English CALL BLOCKING IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 231 ITU-T X.131 SPANISH-1988 1988-11-01 Spanish CALL BLOCKING IN PUBLIC DATA NETWORKS WHEN PROVIDING INTERNATIONAL SYNCHRONOUS CIRCUIT-SWITCHED DATA SERVICES 232 ITU-T V.4 SPANISH-1988 1988-11-01 Spanish GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC TELEPHONE NETWORKS 233 ITU-T V.4 FRENCH-1988 1988-11-01 French GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC TELEPHONE NETWORKS 234 ITU-T V.4-1988 1988-11-01 English GENERAL STRUCTURE OF SIGNALS OF INTERNATIONAL ALPHABET No. 5 CODE FOR CHARACTER ORIENTED DATA TRANSMISSION OVER PUBLIC TELEPHONE NETWORKS 235 ITU-T V.2 SPANISH-1988 1988-11-01 Spanish POWER LEVELS FOR DATA TRANSMISSION OVER TELEPHONE LINES 236 ITU-T V.2 FRENCH-1988 1988-11-01 French POWER LEVELS FOR DATA TRANSMISSION OVER TELEPHONE LINES 237 ITU-T V.2-1988 1988-11-01 English POWER LEVELS FOR DATA TRANSMISSION OVER TELEPHONE LINES 238 ITU-T V.1 SPANISH-1988 1988-11-01 Spanish EQUIVALENCE BETWEEN BINARY NOTATION SYMBOLS AND THE SIGNIFICANT CONDITIONS OF A TWO - CONDITION CODE 239 ITU-T V.1 FRENCH-1988 1988-11-01 French EQUIVALENCE BETWEEN BINARY NOTATION SYMBOLS AND THE SIGNIFICANT CONDITIONS OF A TWO - CONDITION CODE 240 ITU-T V.1-1988 1988-11-01 English EQUIVALENCE BETWEEN BINARY NOTATION SYMBOLS AND THE SIGNIFICANT CONDITIONS OF A TWO - CONDITION CODE 241 ITU-T Q.710-1988 1988-11-01 English SIMPLIFIED MTP VERSION FOR SMALL SYSTEMS 242 ITU-T X.141-1988 1988-11-01 English GENERAL PRINCIPLES FOR THE DETECTION AND CORRECTION OF ERRORS IN PUBLIC DATA NETWORKS 243 ITU-T X.141 FRENCH-1988 1988-11-01 French GENERAL PRINCIPLES FOR THE DETECTION AND CORRECTION OF ERRORS IN PUBLIC DATA NETWORKS 244 ITU-T X.141 SPANISH-1988 1988-11-01 Spanish GENERAL PRINCIPLES FOR THE DETECTION AND CORRECTION OF ERRORS IN PUBLIC DATA NETWORKS 245 ITU-T Q.500-1988 1988-11-01 English DIGITAL LOCAL, COMBINED, TRANSIT AND INTERNATIONAL EXCHANGES - INTRODUCTION AND FIELD OF APPLICATION 246 ITU-T Q.490-1988 1988-11-01 English Testing and Maintenance - Specifications of Signalling Systems R1 and R2 (Study Group XI) 5 pp 247 ITU-T Q.613 SPANISH-1988 1988-11-01 Spanish LOGIC PROCEDURES FOR INCOMING SIGNALLING SYSTEM NO. 6 248 ITU-T X.150-1988 1988-11-01 English PRINCIPLES OF MAINTENANCE TESTING FOR PUBLIC DATA NETWORKS USING DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) TEST LOOPS 249 ITU-T X.150 FRENCH-1988 1988-11-01 French PRINCIPLES OF MAINTENANCE TESTING FOR PUBLIC DATA NETWORKS USING DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) TEST LOOPS 250 ITU-T X.150 SPANISH-1988 1988-11-01 Spanish PRINCIPLES OF MAINTENANCE TESTING FOR PUBLIC DATA NETWORKS USING DATA TERMINAL EQUIPMENT (DTE) AND DATA CIRCUIT-TERMINATING EQUIPMENT (DCE) TEST LOOPS 251 ITU-T U.140 SPANISH-1988 1988-11-01 Spanish DEFINITIONS OF ESSENTIAL TECHNICAL TERMS RELATING TO TELEGRAPH SWITCHING AND SIGNALLING 252 ITU-T U.140 FRENCH-1988 1988-11-01 French DEFINITIONS OF ESSENTIAL TECHNICAL TERMS RELATING TO TELEGRAPH SWITCHING AND SIGNALLING 253 ITU-T Q.430-1988 1988-11-01 English Line Signalling, Digital Version - Conversion between Analogue and Digital Versions of System R2 Line Signalling - Specifications of Signalling Systems R1 and R2 (Study Group XI) 21 pp 254 ITU-T U.140-1988 1988-11-01 English DEFINITIONS OF ESSENTIAL TECHNICAL TERMS RELATING TO TELEGRAPH SWITCHING AND SIGNALLING 255 ITU-T Q.710 FRENCH-1988 1988-11-01 French SIMPLIFIED MTP VERSION FOR SMALL SYSTEMS 256 ITU-T Q.422-1988 1988-11-01 English Line Signalling, Digital Version - Clauses for Exchange Line Signalling Equipment - Specifications of Signalling Systems R1 and R2 (Study Group XI) 6 pp 257 ITU-T Q.421-1988 1988-11-01 English Line Signalling, Digital Version - Digital Line Signalling Code - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp 258 ITU-T X.180 FRENCH-1988 1988-11-01 French ADMINISTRATIVE ARRANGEMENTS FOR INTERNATIONAL CLOSED USER GROUPS (CUGs) 259 ITU-T X.180 SPANISH-1988 1988-11-01 Spanish ADMINISTRATIVE ARRANGEMENTS FOR INTERNATIONAL CLOSED USER GROUPS (CUGs) 260 ITU-T X.181-1988 1988-11-01 English ADMINISTRATIVE ARRANGEMENTS FOR THE PROVISION OF INTERNATIONAL PERMANENT VIRTUAL CIRCUITS (PVCs) 261 ITU-T X.181 FRENCH-1988 1988-11-01 French ADMINISTRATIVE ARRANGEMENTS FOR THE PROVISION OF INTERNATIONAL PERMANENT VIRTUAL CIRCUITS (PVCs) 262 ITU-T X.181 SPANISH-1988 1988-11-01 Spanish ADMINISTRATIVE ARRANGEMENTS FOR THE PROVISION OF INTERNATIONAL PERMANENT VIRTUAL CIRCUITS (PVCs) 263 ITU-T U.82 SPANISH-1988 1988-11-01 Spanish INTERNATIONAL TELEX STORE AND FORWARD 鈥?INTERCONNECTION OF TELEX STORE AND FORWARD UNITS 264 ITU-T U.82 FRENCH-1988 1988-11-01 French INTERNATIONAL TELEX STORE AND FORWARD 鈥?INTERCONNECTION OF TELEX STORE AND FORWARD UNITS 265 ITU-T U.82-1988 1988-11-01 English INTERNATIONAL TELEX STORE AND FORWARD 鈥?INTERCONNECTION OF TELEX STORE AND FORWARD UNITS 266 ITU-T X.208-1988 1988-11-01 English SPECIFICATION OF ABSTRACT SYNTAX NOTATION ONE (ASN.1) 267 ITU-T X.208 FRENCH-1988 1988-11-01 French SPECIFICATION OF ABSTRACT SYNTAX NOTATION ONE (ASN.1) 268 ITU-T X.208 SPANISH-1988 1988-11-01 Spanish SPECIFICATION OF ABSTRACT SYNTAX NOTATION ONE (ASN.1) 269 ITU-T X.209-1988 1988-11-01 English SPECIFICATION OF BASIC ENCODING RULES FOR ABSTRACT SYNTAX NOTATION ONE (ASN.1) 270 ITU-T X.209 FRENCH-1988 1988-11-01 French SPECIFICATION OF BASIC ENCODING RULES FOR ABSTRACT SYNTAX NOTATION ONE (ASN.1) 271 ITU-T U.74 SPANISH-1988 1988-11-01 Spanish EXTRACTION OF TELEX SELECTION INFORMATION FROM A CALLING TELEX ANSWERBACK 272 ITU-T U.74 FRENCH-1988 1988-11-01 French EXTRACTION OF TELEX SELECTION INFORMATION FROM A CALLING TELEX ANSWERBACK 273 ITU-T U.74-1988 1988-11-01 English EXTRACTION OF TELEX SELECTION INFORMATION FROM A CALLING TELEX ANSWERBACK 274 ITU-T U.70 SPANISH-1988 1988-11-01 Spanish TELEX SERVICE SIGNALS FOR TELEX TO TELETEX INTERWORKING 275 ITU-T U.70 FRENCH-1988 1988-11-01 French TELEX SERVICE SIGNALS FOR TELEX TO TELETEX INTERWORKING 276 ITU-T U.70-1988 1988-11-01 English TELEX SERVICE SIGNALS FOR TELEX TO TELETEX INTERWORKING 277 ITU-T U.63 SPANISH-1988 1988-11-01 Spanish GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME 鈥淒IRECT PRINTING鈥?SYSTEM 278 ITU-T U.63 FRENCH-1988 1988-11-01 French GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME 鈥淒IRECT PRINTING鈥?SYSTEM 279 ITU-T Q.411-1988 1988-11-01 English Line Signalling, Analogue Version-Line Signalling Code - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp 280 ITU-T Q.400-Q.490 SPANISH-1988 1988-11-01 Spanish Specifications of Signalling System R2 281 ITU-T U.63-1988 1988-11-01 English GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME 鈥淒IRECT PRINTING鈥?SYSTEM 282 ITU-T Q.400-Q.490 FRENCH-1988 1988-11-01 French Specifications of Signalling System R2 283 ITU-T Q.400-Q.490-1988 1988-11-01 English Specifications of Signalling System R2 - Study Group XI 284 ITU-T U.60 SPANISH-1988 1988-11-01 Spanish GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME SATELLITE SYSTEMS 285 ITU-T U.60 FRENCH-1988 1988-11-01 French GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME SATELLITE SYSTEMS 286 ITU-T U.60-1988 1988-11-01 English GENERAL REQUIREMENTS TO BE MET IN INTERFACING THE INTERNATIONAL TELEX NETWORK WITH THE MARITIME SATELLITE SYSTEMS 287 ITU-T Q.332-1988 1988-11-01 English Interworking of Signalling System R1 with Other Standardized Systems - Interworking - Specifications of Signalling Systems R1 and R2 - Study Group XI; 1 pp 288 ITU-T U.44 SPANISH-1988 1988-11-01 Spanish MULTI-ADDRESS CALLS IN REAL TIME FOR BROADCAST PURPOSES IN THE INTERNATIONAL TELEX SERVICE 289 ITU-T V.19-1988 1988-11-01 English MODEMS FOR PARALLEL DATA TRANSMISSION USING TELEPHONE SIGNALLING FREQUENCIES 290 ITU-T U.44 FRENCH-1988 1988-11-01 French MULTI-ADDRESS CALLS IN REAL TIME FOR BROADCAST PURPOSES IN THE INTERNATIONAL TELEX SERVICE 291 ITU-T U.44-1988 1988-11-01 English MULTI-ADDRESS CALLS IN REAL TIME FOR BROADCAST PURPOSES IN THE INTERNATIONAL TELEX SERVICE 292 ITU-T U.43 SPANISH-1988 1988-11-01 Spanish FOLLOW-ON CALLS 293 ITU-T U.43 FRENCH-1988 1988-11-01 French FOLLOW-ON CALLS 294 ITU-T U.43-1988 1988-11-01 English FOLLOW-ON CALLS 295 ITU-T U.41 SPANISH-1988 1988-11-01 Spanish CHANGED ADDRESS INTERCEPTION AND CALL REDIRECTION IN THE TELEX SERVICE 296 ITU-T U.41 FRENCH-1988 1988-11-01 French CHANGED ADDRESS INTERCEPTION AND CALL REDIRECTION IN THE TELEX SERVICE 297 ITU-T U.41-1988 1988-11-01 English CHANGED ADDRESS INTERCEPTION AND CALL REDIRECTION IN THE TELEX SERVICE 298 ITU-T U.31 SPANISH-1988 1988-11-01 Spanish PREVENTION OF CONNECTION TO FAULTY STATIONS AND/OR STATION LINES IN THE GENTEX SERVICE 299 ITU-T U.31 FRENCH-1988 1988-11-01 French PREVENTION OF CONNECTION TO FAULTY STATIONS AND/OR STATION LINES IN THE GENTEX SERVICE 300 ITU-T U.31-1988 1988-11-01 English PREVENTION OF CONNECTION TO FAULTY STATIONS AND/OR STATION LINES IN THE GENTEX SERVICE 301 ITU-T U.30 SPANISH-1988 1988-11-01 Spanish SIGNALLING CONDITIONS FOR USE IN THE INTERNATIONAL GENTEX NETWORK 302 ITU-T U.30 FRENCH-1988 1988-11-01 French SIGNALLING CONDITIONS FOR USE IN THE INTERNATIONAL GENTEX NETWORK 303 ITU-T U.30-1988 1988-11-01 English SIGNALLING CONDITIONS FOR USE IN THE INTERNATIONAL GENTEX NETWORK 304 ITU-T U.25 SPANISH-1988 1988-11-01 Spanish REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY CODE - AND SPEED-DEPENDENT TDM SYSTEMS CONFORMING TO RECOMMENDATION R.101 305 ITU-T U.25 FRENCH-1988 1988-11-01 French REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY CODE - AND SPEED-DEPENDENT TDM SYSTEMS CONFORMING TO RECOMMENDATION R.101 306 ITU-T X.219-1988 1988-11-01 English REMOTE OPERATIONS: MODEL, NOTATION AND SERVICE DEFINITION 307 ITU-T X.219 FRENCH-1988 1988-11-01 French REMOTE OPERATIONS : MODEL, NOTATION AND SERVICE DEFINITION 308 ITU-T X.219 SPANISH-1988 1988-11-01 Spanish REMOTE OPERATIONS : MODEL, NOTATION AND SERVICE DEFINITION 309 ITU-T U.25-1988 1988-11-01 English REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY CODE - AND SPEED-DEPENDENT TDM SYSTEMS CONFORMING TO RECOMMENDATION R.101 310 ITU-T U.24 SPANISH-1988 1988-11-01 Spanish REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY SYNCHRONOUS MULTIPLEX EQUIPMENT DESCRIBED IN RECOMMENDATION R.44 311 ITU-T U.24 FRENCH-1988 1988-11-01 French REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY SYNCHRONOUS MULTIPLEX EQUIPMENT DESCRIBED IN RECOMMENDATION R.44 312 ITU-T U.24-1988 1988-11-01 English REQUIREMENTS FOR TELEX AND GENTEX OPERATION TO BE MET BY SYNCHRONOUS MULTIPLEX EQUIPMENT DESCRIBED IN RECOMMENDATION R.44 313 ITU-T U.23 SPANISH-1988 1988-11-01 Spanish USE OF RADIOTELEGRAPH CIRCUITS WITH ARQ EQUIPMENT FOR FULLY AUTOMATIC TELEX CALLS CHARGED ON THE BASIS OF ELAPSED TIME 314 ITU-T U.23 FRENCH-1988 1988-11-01 French USE OF RADIOTELEGRAPH CIRCUITS WITH ARQ EQUIPMENT FOR FULLY AUTOMATIC TELEX CALLS CHARGED ON THE BASIS OF ELAPSED TIME 315 ITU-T U.23-1988 1988-11-01 English USE OF RADIOTELEGRAPH CIRCUITS WITH ARQ EQUIPMENT FOR FULLY AUTOMATIC TELEX CALLS CHARGED ON THE BASIS OF ELAPSED TIME 316 ITU-T U.22 SPANISH-1988 1988-11-01 Spanish SIGNALS INDICATING DELAY IN TRANSMISSION ON CALLS SET UP BY MEANS OF SYNCHRONOUS SYSTEMS WITH AUTOMATIC ERROR CORRECTION BY REPETITION 317 ITU-T U.22 FRENCH-1988 1988-11-01 French SIGNALS INDICATING DELAY IN TRANSMISSION ON CALLS SET UP BY MEANS OF SYNCHRONOUS SYSTEMS WITH AUTOMATIC ERROR CORRECTION BY REPETITION 318 ITU-T U.22-1988 1988-11-01 English SIGNALS INDICATING DELAY IN TRANSMISSION ON CALLS SET UP BY MEANS OF SYNCHRONOUS SYSTEMS WITH AUTOMATIC ERROR CORRECTION BY REPETITION 319 ITU-T U.21 SPANISH-1988 1988-11-01 Spanish OPERATOR RECALL ON A TELEX CALL SET UP ON A RADIOTELEGRAPH CIRCUIT 320 ITU-T U.21 FRENCH-1988 1988-11-01 French OPERATOR RECALL ON A TELEX CALL SET UP ON A RADIOTELEGRAPH CIRCUIT 321 ITU-T U.21-1988 1988-11-01 English OPERATOR RECALL ON A TELEX CALL SET UP ON A RADIOTELEGRAPH CIRCUIT 322 ITU-T U.20 SPANISH-1988 1988-11-01 Spanish TELEX AND GENTEX SIGNALLING ON RADIO CHANNELS (SYNCHRONOUS 7-UNIT SYSTEMS AFFORDING ERROR CORRECTION BY AUTOMATIC REPETITION) 323 ITU-T U.20 FRENCH-1988 1988-11-01 French TELEX AND GENTEX SIGNALLING ON RADIO CHANNELS (SYNCHRONOUS 7-UNIT SYSTEMS AFFORDING ERROR CORRECTION BY AUTOMATIC REPETITION) 324 ITU-T U.20-1988 1988-11-01 English TELEX AND GENTEX SIGNALLING ON RADIO CHANNELS (SYNCHRONOUS 7-UNIT SYSTEMS AFFORDING ERROR CORRECTION BY AUTOMATIC REPETITION) 325 ITU-T U.8 SPANISH-1988 1988-11-01 Spanish HYPOTHETICAL REFERENCE CONNECTIONS FOR TELEX AND GENTEX NETWORKS 326 ITU-T U.8 FRENCH-1988 1988-11-01 French HYPOTHETICAL REFERENCE CONNECTIONS FOR TELEX AND GENTEX NETWORKS 327 ITU-T U.8-1988 1988-11-01 English HYPOTHETICAL REFERENCE CONNECTIONS FOR TELEX AND GENTEX NETWORKS 328 ITU-T U.6 SPANISH-1988 1988-11-01 Spanish PREVENTION OF FRAUDULENT TRANSIT TRAFFIC IN THE FULLY AUTOMATIC INTERNATIONAL TELEX SERVICE 329 ITU-T U.6 FRENCH-1988 1988-11-01 French PREVENTION OF FRAUDULENT TRANSIT TRAFFIC IN THE FULLY AUTOMATIC INTERNATIONAL TELEX SERVICE 330 ITU-T U.6-1988 1988-11-01 English PREVENTION OF FRAUDULENT TRANSIT TRAFFIC IN THE FULLY AUTOMATIC INTERNATIONAL TELEX SERVICE 331 ITU-T Q.319-1988 1988-11-01 English Speed of Switching in International Exchanges - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp 332 ITU-T U.5 SPANISH-1988 1988-11-01 Spanish REQUIREMENTS TO BE MET BY REGENERATIVE REPEATERS IN INTERNATIONAL CONNECTIONS 333 ITU-T U.5 FRENCH-1988 1988-11-01 French REQUIREMENTS TO BE MET BY REGENERATIVE REPEATERS IN INTERNATIONAL CONNECTIONS 334 ITU-T U.5-1988 1988-11-01 English REQUIREMENTS TO BE MET BY REGENERATIVE REPEATERS IN INTERNATIONAL CONNECTIONS 335 ITU-T U.4 SPANISH-1988 1988-11-01 Spanish EXCHANGE OF INFORMATION REGARDING SIGNALS DESTINED TO BE USED OVER INTERNATIONAL CIRCUITS CONCERNED WITH SWITCHED TELEPRINTER NETWORKS 336 ITU-T U.4 FRENCH-1988 1988-11-01 French EXCHANGE OF INFORMATION REGARDING SIGNALS DESTINED TO BE USED OVER INTERNATIONAL CIRCUITS CONCERNED WITH SWITCHED TELEPRINTER NETWORKS 337 ITU-T U.4-1988 1988-11-01 English EXCHANGE OF INFORMATION REGARDING SIGNALS DESTINED TO BE USED OVER INTERNATIONAL CIRCUITS CONCERNED WITH SWITCHED TELEPRINTER NETWORKS 338 ITU-T U.3 SPANISH-1988 1988-11-01 Spanish ARRANGEMENTS IN SWITCHING EQUIPMENT TO MINIMIZE THE EFFECTS OF FALSE CALLING SIGNALS 339 ITU-T U.3 FRENCH-1988 1988-11-01 French ARRANGEMENTS IN SWITCHING EQUIPMENT TO MINIMIZE THE EFFECTS OF FALSE CALLING SIGNALS 340 ITU-T U.3-1988 1988-11-01 English ARRANGEMENTS IN SWITCHING EQUIPMENT TO MINIMIZE THE EFFECTS OF FALSE CALLING SIGNALS 341 ITU-T U.2 SPANISH-1988 1988-11-01 Spanish STANDARDIZATION OF DIALS AND DIAL PULSE GENERATORS FOR THE INTERNATIONAL TELEX SERVICE 342 ITU-T U.2 FRENCH-1988 1988-11-01 French STANDARDIZATION OF DIALS AND DIAL PULSE GENERATORS FOR THE INTERNATIONAL TELEX SERVICE 343 ITU-T Q.318-1988 1988-11-01 English Double Seizing with Both-Way Operation - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp 344 ITU-T Q.317-1988 1988-11-01 English Further Specification Clauses Relative to Line Signalling - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp 345 ITU-T Q.316-1988 1988-11-01 English PCM Line Signal Receiver - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp 346 ITU-T Q.315-1988 1988-11-01 English PCM Line Signal Sender (Transmitter) - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp 347 ITU-T X.228 FRENCH-1988 1988-11-01 French RELIABLE TRANSFER: PROTOCOL SPECIFICATION 348 ITU-T Q.314-1988 1988-11-01 English PCM Line Signalling Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp 349 ITU-T X.228 SPANISH-1988 1988-11-01 Spanish RELIABLE TRANSFER: PROTOCOL SPECIFICATION 350 ITU-T X.229-1988 1988-11-01 English REMOTE OPERATIONS: PROTOCOL SPECIFICATION 351 ITU-T X.229 FRENCH-1988 1988-11-01 French REMOTE OPERATIONS: PROTOCOL SPECIFICATION 352 ITU-T X.229 SPANISH-1988 1988-11-01 Spanish REMOTE OPERATIONS: PROTOCOL SPECIFICATION 353 ITU-T U.2-1988 1988-11-01 English STANDARDIZATION OF DIALS AND DIAL PULSE GENERATORS FOR THE INTERNATIONAL TELEX SERVICE 354 ITU-T Q.710 SPANISH-1988 1988-11-01 Spanish SIMPLIFIED MTP VERSION FOR SMALL SYSTEMS 355 ITU-T Q.721-1988 1988-11-01 English FUNCTIONAL DESCRIPTION OF THE SIGNALLING SYSTEM No. 7 TELEPHONE USER PART (TUP) 356 ITU-T Q.721 FRENCH-1988 1988-11-01 French FUNCTIONAL DESCRIPTION OF THE SIGNALLING SYSTEM No. 7 TELEPHONE USER PART (TUP) 357 ITU-T Q.721 SPANISH-1988 1988-11-01 Spanish FUNCTIONAL DESCRIPTION OF THE SIGNALLING SYSTEM No. 7 TELEPHONE USER PART (TUP) 358 ITU-T Q.722-1988 1988-11-01 English GENERAL FUNCTION OF TELEPHONE MESSAGES AND SIGNALS 359 ITU-T Q.722 FRENCH-1988 1988-11-01 French GENERAL FUNCTION OF TELEPHONE MESSAGES AND SIGNALS 360 ITU-T Q.722 SPANISH-1988 1988-11-01 Spanish GENERAL FUNCTION OF TELEPHONE MESSAGES AND SIGNALS 361 ITU-T Q.313-1988 1988-11-01 English 2600 Hz Line Signal Receiving Equipment - Specifications of Signalling Systems R1 and R2 (Study Group XI) 3 pp 362 ITU-T Q.312-1988 1988-11-01 English Line Signalling-2600 Hz Line Signal Sender (Transmitter) - Specifications of Signalling Systems R1 and R2 (Study Group XI) 1 pp 363 ITU-T Q.311-1988 1988-11-01 English Line Signalling-2600 Hz Line Signalling - Specifications of Signalling Systems R1 and R2 (Study Group XI) 2 pp 364 ITU-T Q.310-Q.332 SPANISH-1988 1988-11-01 Spanish Specifications of Signalling System R1 365 ITU-T Q.310-Q.332 FRENCH-1988 1988-11-01 French Specifications of Signalling System R1 366 ITU-T Q.310-Q.332-1988 1988-11-01 English Specifications of Signalling System R1 - Study Group XI 367 ITU-T Q.300-1988 1988-11-01 English Interworking Between CCITT Signalling System No. 6 and National Common Channel Signalling Systems - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 368 ITU-T Q.297-1988 1988-11-01 English 10. Network Management - Specifications of Signalling System No. 6 (Study Group XI) 13 pp 369 ITU-T Q.296-1988 1988-11-01 English 9.6 Monitoring and Maintenance of the Common Signalling Channel - Specifications of Signalling System No. 6 (Study Group XI) 6 pp 370 ITU-T T.562 SPANISH-1988 1988-11-01 Spanish TERMINAL CHARACTERISTICS FOR TELETEX PROCESSABLE MODE PM.1 371 ITU-T T.562 FRENCH-1988 1988-11-01 French TERMINAL CHARACTERISTICS FOR TELETEX PROCESSABLE MODE PM.1 372 ITU-T Q.295-1988 1988-11-01 English 9.1 Overall Test of Signalling System No. 6 - Specifications of Signalling System No. 6 (Study Group XI) 5 pp 373 ITU-T Q.293-1988 1988-11-01 English 8.5 Intervals at Which Security Measures Are to Be Invoked - Specifications of Signalling System No. 6 (Study Group XI) 8 pp 374 ITU-T Q.292-1988 1988-11-01 English 8.4 Reserve Facilities Provided - Specifications of Signalling System No. 6 (Study Group XI) 3 pp 375 ITU-T T.562-1988 1988-11-01 English TERMINAL CHARACTERISTICS FOR TELETEX PROCESSABLE MODE PM.1 376 ITU-T T.561 SPANISH-1988 1988-11-01 Spanish TERMINAL CHARACTERISTICS FOR MIXED MODE OF OPERATION MM 377 ITU-T T.561 FRENCH-1988 1988-11-01 French TERMINAL CHARACTERISTICS FOR MIXED MODE OF OPERATION MM 378 ITU-T T.561-1988 1988-11-01 English TERMINAL CHARACTERISTICS FOR MIXED MODE OF OPERATION MM 379 ITU-T T.441 SPANISH-1988 1988-11-01 Spanish DOCUMENT TRANSFER AND MANIPULATION (DTAM) - OPERATIONAL STRUCTURE 380 ITU-T T.441 FRENCH-1988 1988-11-01 French DOCUMENT TRANSFER AND MANIPULATION (DTAM) - OPERATIONAL STRUCTURE 381 ITU-T T.441-1988 1988-11-01 English Document Transfer and Manipulation (DTAM) - Operational Structure - Terminal Equipment and Protocols for Telematic Services (Study Group VIII) 4 pp 382 ITU-T Q.783-1988 1988-11-01 English TUP TEST SPECIFICATION 383 ITU-T Q.291-1988 1988-11-01 English Security Arrangements - General. Basic Security Arrangements. Types of Failure, Recognition of Failure and Abnormal Error Rates - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 384 ITU-T Q.287-1988 1988-11-01 English 7.3 Signal Transfer Time Requirements - Specifications of Signalling System No. 6 (Study Group XI) 3 pp 385 ITU-T Q.286-1988 1988-11-01 English 7.2 Signalling Channel Loading and Queueing Delays - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 386 ITU-T Q.285-1988 1988-11-01 English Signal Priority Categories - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 387 ITU-T Q.279-1988 1988-11-01 English 6.9 Drift Compensation - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 388 ITU-T Q.278-1988 1988-11-01 English 6.8 Synchronization - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 389 ITU-T T.390 SPANISH-1988 1988-11-01 Spanish TELETEX REQUIREMENTS FOR INTERWORKING WITH THE TELEX SERVICE 390 ITU-T T.390 FRENCH-1988 1988-11-01 French TELETEX REQUIREMENTS FOR INTERWORKING WITH THE TELEX SERVICE 391 ITU-T T.390-1988 1988-11-01 English TELETEX REQUIREMENTS FOR INTERWORKING WITH THE TELEX SERVICE 392 ITU-T Q.277-1988 1988-11-01 English 6.7 Error Control - Specifications of Signalling System No. 6 (Study Group XI) 3 pp 393 ITU-T Q.276-1988 1988-11-01 English 6.6 Service Dependability - Specifications of Signalling System No. 6 (Study Group XI) 2 pp 394 ITU-T Q.275-1988 1988-11-01 English 6.5 Data Channel Failure Detection - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 395 ITU-T Q.274-1988 1988-11-01 English 6.3 Transmission Methods - Specifications of Signalling System No. 6 (Study Group XI) 8 pp 396 ITU-T Q.273-1988 1988-11-01 English 6.2 Data Transmission Rate - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 397 ITU-T Q.272-1988 1988-11-01 English 6.1 Requirements for the Signalling Data Link - Specifications of Signalling System No. 6 (Study Group XI) 6 pp 398 ITU-T Q.271-1988 1988-11-01 English 1.1 General - Specifications of Signalling System No. 6 (Study Group XI) 3 pp 399 ITU-T Q.268-1988 1988-11-01 English 4.8 Release of International Connections and Associated Equipment - Specifications of Signalling System No. 6 (Study Group XI) 5 pp 400 ITU-T Q.267-1988 1988-11-01 English 4.7 Unreasonable and Superfluous Messages - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 401 ITU-T Q.266-1988 1988-11-01 English 4.6 Blocking and Unblocking Sequences and Control of Quasi- Associated Signalling - Specifications of Signalling System No. 6 (Study Group XI) 3 pp 402 ITU-T Q.265-1988 1988-11-01 English 4.5 Speed of Switching and Signal Transfer in International Exchanges - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 403 ITU-T Q.264-1988 1988-11-01 English 4.4 Potential for Automatic Repeat Attempt and Re-Routing - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 404 ITU-T Q.263-1988 1988-11-01 English 4.3 Double Seizing with Both-Way Operation - Specifications of Signalling System No. 6 (Study Group XI) 2 pp 405 ITU-T Q.261-1988 1988-11-01 English 4.1 Normal Call Set-Up - Specifications of Signalling System No. 6 (Study Group XI) 7 pp 406 ITU-T T.351 SPANISH-1988 1988-11-01 Spanish IMAGING PROCESS OF CHARACTER INFORMATION ON FACSIMILE APPARATUS 407 ITU-T T.351 FRENCH-1988 1988-11-01 French IMAGING PROCESS OF CHARACTER INFORMATION ON FACSIMILE APPARATUS 408 ITU-T T.351-1988 1988-11-01 English IMAGING PROCESS OF CHARACTER INFORMATION ON FACSIMILE APPARATUS 409 ITU-T T.330 SPANISH-1988 1988-11-01 Spanish TELEMATIC ACCESS TO INTERPERSONAL MESSAGING SYSTEM 410 ITU-T T.330 FRENCH-1988 1988-11-01 French TELEMATIC ACCESS TO INTERPERSONAL MESSAGING SYSTEM 411 ITU-T T.330-1988 1988-11-01 English TELEMATIC ACCESS TO INTERPERSONAL MESSAGING SYSTEM 412 ITU-T Q.260-1988 1988-11-01 English 3.4 Management Signals - Specifications of Signalling System No. 6 (Study Group XI) 5 pp 413 ITU-T Q.259-1988 1988-11-01 English 3.3 Signalling-System- Control Signals - Specifications of Signalling Sytem No. 6 (Study Group XI) 4 pp 414 ITU-T Q.258-1988 1988-11-01 English 3.2 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 8 pp 415 ITU-T T.300 SPANISH-1988 1988-11-01 Spanish GENERAL PRINCIPLES OF TELEMATIC INTERWORKING 416 ITU-T T.300 FRENCH-1988 1988-11-01 French GENERAL PRINCIPLES OF TELEMATIC INTERWORKING 417 ITU-T T.300-1988 1988-11-01 English GENERAL PRINCIPLES OF TELEMATIC INTERWORKING 418 ITU-T T.150 SPANISH-1988 1988-11-01 Spanish TELEWRITING TERMINAL EQUIPMENT 419 ITU-T T.150 FRENCH-1988 1988-11-01 French TELEWRITING TERMINAL EQUIPMENT 420 ITU-T T.150-1988 1988-11-01 English TELEWRITING TERMINAL EQUIPMENT 421 ITU-T T.100 SPANISH-1988 1988-11-01 Spanish INTERNATIONAL INFORMATION EXCHANGE FOR INTERACTIVE VIDEOTEX 422 ITU-T X.302-1988 1988-11-01 English DESCRIPTION OF THE GENERAL ARRANGEMENTS FOR INTERNAL NETWORK UTILITIES WITHIN A SUBNETWORK AND INTERMEDIATE UTILITIES BETWEEN SUBNETWORKS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 423 ITU-T X.302 FRENCH-1988 1988-11-01 French DESCRIPTION OF THE GENERAL ARRANGEMENTS FOR INTERNAL NETWORK UTILITIES WITHIN A SUBNETWORK AND INTERMEDIATE UTILITIES BETWEEN SUBNETWORKS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 424 ITU-T X.302 SPANISH-1988 1988-11-01 Spanish DESCRIPTION OF THE GENERAL ARRANGEMENTS FOR INTERNAL NETWORK UTILITIES WITHIN A SUBNETWORK AND INTERMEDIATE UTILITIES BETWEEN SUBNETWORKS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 425 ITU-T X.305-1988 1988-11-01 English FUNCTIONALITIES OF SUBNETWORKS RELATING TO THE SUPPORT OF THE OSI CONNECTION-MODE NETWORK SERVICE 426 ITU-T X.305 FRENCH-1988 1988-11-01 French FUNCTIONALITIES OF SUBNETWORKS RELATING TO THE SUPPORT OF THE OSI CONNECTION-MODE NETWORK SERVICE 427 ITU-T X.305 SPANISH-1988 1988-11-01 Spanish FUNCTIONALITIES OF SUBNETWORKS RELATING TO THE SUPPORT OF THE OSI CONNECTION-MODE NETWORK SERVICE 428 ITU-T T.100 FRENCH-1988 1988-11-01 French INTERNATIONAL INFORMATION EXCHANGE FOR INTERACTIVE VIDEOTEX 429 ITU-T T.100-1988 1988-11-01 English INTERNATIONAL INFORMATION EXCHANGE FOR INTERACTIVE VIDEOTEX 430 ITU-T X.322-1988 1988-11-01 English 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 431 ITU-T X.322 FRENCH-1988 1988-11-01 French 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 432 ITU-T X.322 SPANISH-1988 1988-11-01 Spanish 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 433 ITU-T X.323-1988 1988-11-01 English GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) 434 ITU-T X.323 FRENCH-1988 1988-11-01 French GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) 435 ITU-T X.323 SPANISH-1988 1988-11-01 Spanish GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) 436 ITU-T X.324-1988 1988-11-01 English GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND PUBLIC MOBILE SYSTEMS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 437 ITU-T X.324 FRENCH-1988 1988-11-01 French GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND PUBLIC MOBILE SYSTEMS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 438 ITU-T X.324 SPANISH-1988 1988-11-01 Spanish GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND PUBLIC MOBILE SYSTEMS FOR THE PROVISION OF DATA TRANSMISSION SERVICES 439 ITU-T X.326-1988 1988-11-01 English GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND COMMON CHANNEL SIGNALLING NETWORK (CCSN) 440 ITU-T X.326 FRENCH-1988 1988-11-01 French GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND COMMON CHANNEL SIGNALLING NETWORK (CCSN) 441 ITU-T X.326 SPANISH-1988 1988-11-01 Spanish GENERAL ARRANGEMENTS FOR INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS (PSPDNs) AND COMMON CHANNEL SIGNALLING NETWORK (CCSN) 442 ITU-T Q.257-1988 1988-11-01 English 3.1 General - Specifications of Signalling System No. 6 (Study Group XI) 5 pp 443 ITU-T Q.256-1988 1988-11-01 English 2.3 Management Signals - Specifications of Signalling System No. 6 (Study Group XI) 1 pp 444 ITU-T Q.255-1988 1988-11-01 English 2.2 Signalling-System- Control Signals - Specifications of Signalling System No. 6 (Study Group XI) 2 pp 445 ITU-T Q.254-1988 1988-11-01 English 2.1 Telephone Signals - Specifications of Signalling System No. 6 (Study Group XI) 4 pp 446 ITU-T Q.253-1988 1988-11-01 English 1.3 Association between Signalling and Speech Networks - Specifications of Signalling System (Study Group XI) 3 pp 447 ITU-T Q.252-1988 1988-11-01 English 1.2 Signal Transfer Time Definitions - Specifications of Signalling System No. 6 (Study Group XI) 2 pp 448 ITU-T X.351-1988 1988-11-01 English 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 449 ITU-T X.351 FRENCH-1988 1988-11-01 French 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 450 ITU-T X.351 SPANISH-1988 1988-11-01 Spanish 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 451 ITU-T X.352-1988 1988-11-01 English INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS AND PUBLIC MARITIME MOBILE SATELLITE DATA TRANSMISSION SYSTEMS 452 ITU-T X.352 FRENCH-1988 1988-11-01 French INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS AND PUBLIC MARITIME MOBILE SATELLITE DATA TRANSMISSION SYSTEMS 453 ITU-T X.352 SPANISH-1988 1988-11-01 Spanish INTERWORKING BETWEEN PACKET SWITCHED PUBLIC DATA NETWORKS AND PUBLIC MARITIME MOBILE SATELLITE DATA TRANSMISSION SYSTEMS 454 ITU-T X.353-1988 1988-11-01 English ROUTING PRINCIPLES FOR INTERCONNECTING PUBLIC MARITIME MOBILE SATELLITE DATA TRANSMISSION SYSTEMS WITH PUBLIC DATA NETWORKS 455 ITU-T Q.251-Q.300 SPANISH-1988 1988-11-01 Spanish Specifications of Signalling System No. 6 456 ITU-T X.353 SPANISH-1988 1988-11-01 Spanish ROUTING PRINCIPLES FOR INTERCONNECTING PUBLIC MARITIME MOBILE SATELLITE DATA TRANSMISSION SYSTEMS WITH PUBLIC DATA NETWORKS 457 ITU-T T.71 SPANISH-1988 1988-11-01 Spanish LINK ACCESS PROTOCOL BALANCED (LAPB) EXTENDED FOR HALF - DUPLEX PHYSICAL LEVEL FACILITY 458 ITU-T T.71 FRENCH-1988 1988-11-01 French LINK ACCESS PROTOCOL BALANCED (LAPB) EXTENDED FOR HALF - DUPLEX PHYSICAL LEVEL FACILITY 459 ITU-T T.71-1988 1988-11-01 English LINK ACCESS PROTOCOL BALANCED (LAPB) EXTENDED FOR HALF - DUPLEX PHYSICAL LEVEL FACILITY 460 ITU-T Q.251-Q.300 FRENCH-1988 1988-11-01 French Specifications of Signalling System No. 6 461 ITU-T Q.251-Q.300-1988 1988-11-01 English Specifications of Signalling System No. 6 462 ITU-T Q.180-1988 1988-11-01 English Interworking of Systems No. 4 and No. 5 - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 7 pp 463 ITU-T X.408-1988 1988-11-01 English MESSAGE HANDLING SYSTEMS: ENCODED INFORMATION TYPE CONVERSION RULES 464 ITU-T X.408 FRENCH-1988 1988-11-01 French MESSAGE HANDLING SYSTEMS: ENCODED INFORMATION TYPE CONVERSION RULES 465 ITU-T X.408 SPANISH-1988 1988-11-01 Spanish MESSAGE HANDLING SYSTEMS: ENCODED INFORMATION TYPE CONVERSION RULES 466 ITU-T Q.140-Q.180 SPANISH-1988 1988-11-01 Spanish Specifications of Signalling System No. 5 467 ITU-T Q.140-Q.180 FRENCH-1988 1988-11-01 French Specifications of Signalling System No. 5 468 ITU-T Q.140-Q.180-1988 1988-11-01 English Specifications of Signalling System No. 5 - Study Group XI 469 ITU-T Q.139-1988 1988-11-01 English Manual Testing - Specifications of Signalling Systems Nos. 4 and 5 (Study Group XI) 3 pp 470 ITU-T Q.940-1988 1988-11-01 English ISDN User-Network Interface Protocol for Management - General Aspects - Digital Subscriber Signalling System No. 1 (DSS 1), Network Layer, User-Network Management (Study Group XI) 11 pp 471 ITU-T Q.940 FRENCH-1988 1988-11-01 French ISDN User-Network Interface Protocol for Management - General Aspects 472 ITU-T Q.940 SPANISH-1988 1988-11-01 Spanish ISDN User-Network Interface Protocol for Management - General Aspects 473 ITU-T T.65 SPANISH-1988 1988-11-01 Spanish APPLICABILITY OF TELEMATIC PROTOCOLS AND TERMINAL CHARACTERISTICS TO COMPUTERIZED COMMUNICATION TERMINALS (CCTs) 474 ITU-T T.65 FRENCH-1988 1988-11-01 French APPLICABILITY OF TELEMATIC PROTOCOLS AND TERMINAL CHARACTERISTICS TO COMPUTERIZED COMMUNICATION TERMINALS (CCTs) 475 ITU-T T.65-1988 1988-11-01 English APPLICABILITY OF TELEMATIC PROTOCOLS AND TERMINAL CHARACTERISTICS TO COMPUTERIZED COMMUNICATION TERMINALS (CCTs) 476 ITU-T T.61 SPANISH-1988 1988-11-01 Spanish CHARACTER REPERTOIRE AND CODED CHARACTER SETS FOR THE INTERNATIONAL TELETEX SERVICE 477 ITU-T T.61 FRENCH-1988 1988-11-01 French CHARACTER REPERTOIRE AND CODED CHARACTER SETS FOR THE INTERNATIONAL TELETEX SERVICE 478 ITU-T T.61-1988 1988-11-01 English CHARACTER REPERTOIRE AND CODED CHARACTER SETS FOR THE INTERNATIONAL TELETEX SERVICE 479 ITU-T T.60 SPANISH-1988 1988-11-01 Spanish Terminal Equipment for Use in the Teletex Service 480 ITU-T T.60 FRENCH-1988 1988-11-01 French Terminal Equipment for Use in the Teletex Service 481 ITU-T Q.120-Q.139 SPANISH-1988 1988-11-01 Spanish Specifications of Signalling System No. 4 482 ITU-T Q.120-Q.139-1988 1988-11-01 English Specifications of Signalling System No. 4 - Study Group XI 483 ITU-T Q.118 BIS SPANISH-1988 1988-11-01 Spanish Indication of congestion conditions at transit exchanges 484 ITU-T Q.118 BIS FRENCH-1988 1988-11-01 French Indication of congestion conditions at transit exchanges 485 ITU-T Q.118 BIS-1988 1988-11-01 English Indication of congestion conditions at transit exchanges 486 ITU-T Q.117 SPANISH-1988 1988-11-01 Spanish ALARMS FOR TECHNICAL STAFF AND ARRANGEMENTS IN CASE OF FAULTS 487 ITU-T Q.117 FRENCH-1988 1988-11-01 French ALARMS FOR TECHNICAL STAFF AND ARRANGEMENTS IN CASE OF FAULTS 488 ITU-T Q.117-1988 1988-11-01 English ALARMS FOR TECHNICAL STAFF AND ARRANGEMENTS IN CASE OF FAULTS 489 ITU-T Q.116 SPANISH-1988 1988-11-01 Spanish INDICATION GIVEN TO THE OUTGOING OPERATOR OR CALLING SUBSCRIBER IN CASE OF AN ABNORMAL CONDITION 490 ITU-T Q.116 FRENCH-1988 1988-11-01 French INDICATION GIVEN TO THE OUTGOING OPERATOR OR CALLING SUBSCRIBER IN CASE OF AN ABNORMAL CONDITION 491 ITU-T Q.116-1988 1988-11-01 English INDICATION GIVEN TO THE OUTGOING OPERATOR OR CALLING SUBSCRIBER IN CASE OF AN ABNORMAL CONDITION 492 ITU-T Q.114 SPANISH-1988 1988-11-01 Spanish TYPICAL TRANSMISSION REQUIREMENTS FOR SIGNAL SENDERS AND RECEIVERS 493 ITU-T Q.114 FRENCH-1988 1988-11-01 French TYPICAL TRANSMISSION REQUIREMENTS FOR SIGNAL SENDERS AND RECEIVERS 494 ITU-T Q.114-1988 1988-11-01 English TYPICAL TRANSMISSION REQUIREMENTS FOR SIGNAL SENDERS AND RECEIVERS 495 ITU-T Q.113 SPANISH-1988 1988-11-01 Spanish CONNECTION OF SIGNAL RECEIVERS IN THE CIRCUIT 496 ITU-T Q.113 FRENCH-1988 1988-11-01 French CONNECTION OF SIGNAL RECEIVERS IN THE CIRCUIT 497 ITU-T Q.113-1988 1988-11-01 English CONNECTION OF SIGNAL RECEIVERS IN THE CIRCUIT 498 ITU-T Q.112 SPANISH-1988 1988-11-01 Spanish SIGNAL LEVELS AND SIGNAL RECEIVER SENSITIVITY 499 ITU-T Q.112 FRENCH-1988 1988-11-01 French SIGNAL LEVELS AND SIGNAL RECEIVER SENSITIVITY 500 ITU-T Q.112-1988 1988-11-01 English SIGNAL LEVELS AND SIGNAL RECEIVER SENSITIVITY fdcrw@qq.com