1 Scope
2
General
3
References
4
Digital exchanges
4.1 Digital processes – Effect on transmission
4.2 Transmission loss through a digital exchange
4.3 Relative levels
4.4 Echo and stability control
4.4.1 Transmission loss contribution
4.4.2 Balance return loss contribution
4.5 Local transmission
4.6 Sidetone and input impedance
4.7 Digital pads
4.8 Transmission delay