| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gateway device which interconnects multimedia services for TV telephones that use a mobile circuit-switching network or a mobile circuit-switching protocol to a mobile IMS network, interconnects circuit-switching mobile terminals and IMS mobile terminals, and achieves total IMS services; and to provide a program and a method. <P>SOLUTION: The gateway device 110 interconnects the mobile circuit-switching network 130 with the mobile IMS network 102 to achieve TV telephones. The gateway device 110 has a converter which separates multiplexed bit stream signals that are output from a mobile terminal 120 connected to the mobile circuit-switching network, extracts at least one of a control signal, a compressed and encoded audio signal, and a compressed and encoded video signal, converts the control signal to at least one of a MEGACO signal, an SIP signal and an SDP signal, converts the audio signal and the video signal to packetize them if necessary, and transmits them to the IMS network. <P>COPYRIGHT: (C)2010,JPO&INPIT |
