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OwnerSachiko Takeshita, Junichi Morita +3inventors
InventorsSachiko Takeshita, Junichi Morita, Maki Amishima, Hiroshi Uranaka, Go Nakano
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A switching system capable of carrying out call recording without producing any reception delay in communication data. In this system, upon reception of a call connection request from a communication terminal 210, a call control apparatus 250 selects a multicast address, notifies the multicast address to all communication terminals 230 involving in the call connection and joins a multicast group indicated by the address. The communication terminal 210 transmits all voice data of the call using the address while the call is connected and the call control apparatus 250 mixes the voice packet directed to the own apparatus sent to the address and stores the voice packet in a user data voice storage database 160.
A switching system that connects a plurality of communication terminals by the medium of a call control apparatus having a call recording function through a network, each of said plurality of communication terminals comprising:
A communication terminal used in a switching system that connects a plurality of communication terminals by the medium of a call control apparatus having a call recording function through a network, comprising:
A call control apparatus used in a switching system that connects a plurality of communication terminals by the medium of a call control apparatus having a call recording function through a network, comprising:
A call recording method in a switching system that connects a plurality of communication terminals by the medium of a call control apparatus having a call recording function through a network, comprising:
Dependencies are inferred from the claim text.