Patent ID: 8144854
Filing Date: 2012-03-27
Classification: H04L,H04M,H04N,H04Q

Abstract:
1. A conference bridge for multipoint conferencing among a plurality of endpoints via one or more networks, the bridge comprising: a network interface for exchanging audio data with the plurality of endpoints, at least one endpoint providing audio data containing embedded control data, the control data being substantially humanly inaudible; a control data detection module coupled to said network interface to determine the presence of embedded control data in audio data; an audio unit coupled to said network interface to receive the audio data, to mix the received audio data, and to transmit the mixed audio data; and a bridge control unit coupled to said control data detection module, coupled to said audio unit, and coupled to said network interface, to control operations of the bridge responsive to the presence of embedded control data without determining the content of the embedded control data.