Patent ID: 8081614

Claim:
A voice transmission apparatus characterized by comprising: a transmitting unit that transmits packets storing voice data to a packet-switching network; a receiving unit that receives the packets from the packet-switching network; a jitter absorbing buffer unit provided in the receiving unit and which absorbs a transmission delay in the packets; and a transmission wait control unit provided in the transmitting unit and which links packets to be transmitted when transmission temporarily breaks down to a queue, wherein the transmission wait control unit is provided with an accumulated time computing unit that computes an accumulated time of the voice data in the packets linked to the queue, the transmission wait control unit extracts an oldest linked packet from the queue and discards the same so that the accumulated time computed by the accumulated time computing unit becomes equal to or less than a threshold in order to continuously link new packets to the queue, thereby equalizing the threshold to an accumulation time of the jitter absorbing buffer unit.