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ITU-T G.174 Transmission performance objectives for terrestrial digital wireless systems using portable terminals to access the PSTN
ITU-T P.85 A method for subjective performance assessment of the quality of speech voice output devices
ITU-T G.726 Appendix III Comparison of ADPCM algorithms
ITU-T Q.1219 Intelligent network user's guide for Capability Set 1
ITU-T T.53 Character coded control functions for telematic services
ITU-T T.23 Standardized colour test chart for document facsimile transmissions
ITU-T Q.822 Stage 1, stage 2 and stage 3 description for the Q3 interface - Performance management
ITU-R SA.1016-0 Sharing considerations relating to deep-space research
ITU-R SA.1020-0 Hypothetical reference system for the Earth exploration-satellite and meteorological satellite services
ITU-R SA.1021-0 Methodology for determining performance objectives for systems in the Earth exploration-satellite and meteorological-satellite services
ITU-R SA.1023-0 Methodology for determining sharing and coordination criteria for systems in the Earth exploration-satellite and meteorological-satellite services
ITU-R SA.1030-0 Telecommunication requirements of satellite systems for geodesy and geodynamics