ITU-T Rec. V.92 (11/2000) Enhancements to Recommendation V.90 Summary Source FOREWORD CONTENTS Enhancements to Recommendation V.90 1 Scope 2 References 3 Definitions 4 Abbreviations 5 Digital modem 6 Analogue modem 6.1 Data signalling rates 6.2 Symbol rate 6.3 Scrambler 6.4 Transmitter 7 Interchange circuits 7.1 List of interchange circuits 7.2 Asynchronous character-mode interfacing 8 Signals and sequences 8.1 Full Phase 1 8.2 Short Phase 1 signals and sequences for the analogue modem 8.3 Short Phase 1 signals and sequences for the digital modem 8.4 Full and short Phase 2 signals and sequences 8.5 Phase 3 signals for the analogue modem 8.6 Phase 3, signals for the digital modem 8.7 Phase 4, Rate Renegotiation and Fast Parameter Exchange signals for the analogue modem 8.8 Phase 4, Rate Renegotiation and Fast Parameter Exchange signals for the digital modem 8.9 Modem-on-hold 9 Operating procedures 9.1 Full Phase 1 - Network interaction 9.2 Short Phase 1 - Network interaction 9.3 Full Phase 2 - Probing/ranging 9.4 Short Phase 2 - Ranging 9.5 Phase 3 - Equalizer and echo canceller training and digital impairment learning 9.6 Phase 4 - Final training 9.7 Retrains 9.8 Rate renegotiation 9.9 Fast parameter exchange 9.10 Modem-on-hold 9.11 Cleardown 10 Testing facilities