DYNAMIC ASSIGNMENT OF SUBRATE VOICE CHANNELS IN TELECOMMUNICATION NETWORKS

摘要

Apparatus for switching full-rate (e.g., 64 kilobit per second) signals and composite signals comprising a plurality of sub-rate signals (e.g., 32 kilobit per second sub-rate signal). The apparatus includes a unit for compressing selected ones of a plurality of full rate signals into a smaller plurality of full rate single and composite signals, and apparatus for expanding composite signals into full rate signals. Advantageously, duri ng periods of heavy load, the switching network fabric of a switching system can carry mor e calls, and more traffic can be carried between switches equipped for sub-rate switching .