�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