WIRETAP APPARATUS AND WIRETAPPING METHOD IN VOIP NETWORK

摘要

A wiretapping method in a VoIP(Voice over Internet Protocol) network and a wiretapping device are provided to interwork a separate wiretapping device with the VoIP network in order to wiretap communication information between subscribers. An RTP(Real-time Transport Protocol) processor(210) processes RTP packets to transceive each RTP packet with the first and second VoIP terminals, and copies the RTP packets to transmit the copied packets to a mixer(215). The mixer(215) mixes the respective copied RTP packets to generate a mixed RTP packet stream. The mixed RTP packet stream is sent to a monitoring terminal. The mixed RTP packet stream and a lot of call-related information are stored in a storage(220).