1 Introduction
2
Scope
3
References
4
Abbreviations
5
Voiceband data performance
5.1 Test Set-up Architecture
5.2 Impairments
5.3 Measurement Procedures
5.4 Transmit and echo levels
5.5 Performance measurements
6.6 Calibration
6
Narrow-band signal performance
6.1 System No. 5 inter-register signalling
6.2 R-2 Signalling
6.3 DTMF Signals
6.4 System No. 5 line signalling
6.5 Circuit Continuity Tones
6.6 Echo canceller disabling tone
6.7 Distortion, frequency and level
7
Coding delay
7.1 Total delay measurement method
8
Convergence time
8.1 Encoder/decoder decorrelation
8.2 Encoder/decoder state mismatch
8.3 Attack time
8.4 Measurement method
9
Facsimile performance
Bibliography