Patent ID: 6785364
Filing Date: 2004-08-31
Classification: H04M,H04Q

Abstract:
The sound source management unit for a telephone switching network, comprising:a plurality of sound sources; a call processing unit for processing a call from at least one subscriber; and a sound source management data storing unit for storing information representing whether or not each of said sound sources is being used, wherein when said call processing unit detects a call originated from a calling subscriber's telephone set that requests connection to one of said sound sources for a required speech, the call processing unit judges, through the utilization of said sound source management data storing unit, whether or not a speech is being sent out from the sound source that is identical to the speech required; and as a result of the judgment, if said required speech is being sent out from said requested sound source to another subscriber's telephone set, said call processing unit establishes a path between said call originating subscriber's telephone set and said requested sound source in addition to the path between said another subscriber's telephone set and said requested sound source.