Cisco BPX-BXM-155-8DX Installation And Configuration Manual page 608

Glossary
D
A digital transmission standard that carries 24 individual channels in a bipolar, high-speed line signal
DS1 (Digital Signal
1) at 1.544 Mbps. DS1 signal level is 3V.
An algorithm that analyzes DS0 voice bits for non-speech codes. Suppresses these bits to conserve
DSI (Digital Speech
Interpolation) packet line bandwidth and inserts a code to indicate to the far end that these bits have been removed.
Similar to DFM for data channels. Also, referred to as VAD (Voice Activity Detection).
As defined by the RS-232 standard, any device that generates or utilizes information. (See also, DCE.)
DTE (Data Terminal
Equipment)
Cisco BPX 8600 Series Installation and Configuration
8
Release 9.3.0, Part Number 78-10674-01 Rev. D0, July 2001