1
Scope
2
References
3
Definitions
and abbreviations
3.1
Definitions
3.2
Abbreviations
4 Test configuration
4.1 Measurement approaches for testing digital
telephones
4.2
Test equipment
4.3
Measurement
set-up
4.4
Test
environment
4.5
Test
signal and level
4.6
Accuracy
of test equipment
5
Handset
technical requirements
5.1
Sending
characteristics
5.2
Receiving
characteristics
5.3
Sidetone
characteristics
5.4
Echo
path loss characteristics
5.5
Delay
6
Headset
technical requirements
6.1
Sending
characteristics
6.2
Receiving
characteristics
6.3
Echo
path loss characteristics
Annex A – Distortion
allowances
Bibliography