Table of Contents
1Scope
2General
3References
4Digitalexchanges
4.1Digitalprocesses-Effectontransmission
4.2Transmissionlossthroughadigitalexchange
4.3Relativelevels
4.4Echoandstabilitycontrol
4.5Localtransmission
4.6Sidetoneandinputimpedance
4.7Digitalpads
4.8Transmissiondelay Abstract
Deals with voice-frequency transmission considerations for taking into account in designing digital exchanges and their incorporation into the network. Includes local and transit exchanges (national and international). Deals mainly with the properties which digital exchanges should have in order to operate under different and changing network conditions, regarding the content of analogue, mixed analogue/digital and all-digital plant.
