| 摘要 |
PROBLEM TO BE SOLVED: To provide a VoIP adaptor whereby a telephone set compatible with a Calling ID Service connected to the VoIP adaptor can display a telephone number even in the case of a speech from the VoIP. SOLUTION: When communication from a communication line comes from the VoIP, a switch is switched to a VoIP side communication and the VoIP adaptor transmits telephone number information of a communication opposite party to a communication apparatus connected to a connection terminal of the VoIP adaptor. COPYRIGHT: (C)2006,JPO&NCIPI
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