Software embedded in integrated circuits for use in systems for communicating voice, PBX and/or data signals over telephone lines, comprising signal compression and multiplexing functions in the sending unit and signal reconstruction and routing functions in the receiving unit

'and/or':14 'circuit':5 'communic':11 'compress':22 'compris':20 'data':15 'embed':2 'function':25,35 'integr':4 'line':19 'multiplex':24 'pbx':13 'receiv':38 'reconstruct':32 'rout':34 'send':28 'signal':16,21,31 'softwar':1 'system':9 'telephon':18 'unit':29,39 'use':7 'voic':12

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