Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2008-04-15
2008-04-15
Anderson, Matthew (Department: 2618)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S302000, C370S360000, C370S401000, C370S402000
Reexamination Certificate
active
11174836
ABSTRACT:
The present invention relates to a relay device enabling efficient management of a voice message and a caller to wait for transmission of the voice message in a short time. The relay device is located at a boundary between an existing telephone network and an IP network, converts and relays a voice signal and an IP packet. The relay device comprises a receiving unit receiving voice source data into which a voice message is digitized, a packet processing unit converting the received voice source data into a voice source data packet as the IP packet, a storage unit storing the converted voice source data packets, and a transmitting unit transmitting, when transmitting a designated voice message to a designated destination, the voice source data packet corresponding to the designated voice message among the stored voice source data packets.
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Abe Hideo
Fukuda Kenji
Kojima Susumu
Suzuki Kazunori
Fujitsu Limited
Katten Muchin & Rosenman LLP
Pham Tuan
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