SUBRATE VOICE SWITCHING OVER SWITCHING AND TELECOMMUNICATIONNETWORKS

摘要

Apparatus for switching full rate (e.g., 64 kilobit per second) signals and composite signals comprising a plurality of subrate signals (e.g., 32 kilobit per seco nd subrate signal). The apparatus includes a unit for compressing selected ones of a plurality o f full-rate signals into a smaller plurality of full-rate single and composite signals, and apparatus for decompressing composite signals into a plurality of full-rate signals. The main elements of the switching fabric of the switch continue to switch full-rate signals. Advantageously, during periods of heavy load, the switching network fabric of a switching system can carry more calls, and more traffic can be carried between switches equipped for subrate switching.