Adaptive Transform Coding Speech algorithm for frequency domain coding. Networking efficiency is very high. Central Office A telephone company switching center.
Central offices are usually within two to three miles of the customer's facilities.
Codec Circuits that convert voice signals from analog to digital and back again. DSP Digital Signal Processor. Dynamic adaption allows voice to operate at optimal rates when the network is idle and to accommodate bursty data traffic by momentarily reduction of voice bandwidth. Host Computer Central computer in a data communications system that provides primary data processing functions. IXC Interexchange Carrier.