发明授权
US07352851B1 Exchange and computer readable medium storing exchange control program 失效
交换和计算机可读介质存储交换控制程序

Exchange and computer readable medium storing exchange control program
摘要:
An exchange is provided, the exchange receiving a number of a telephone terminal of a called party, selecting a network from a plurality of connectable networks including the Internet with the number and connecting to the network. In addition, the exchange calls the telephone terminal via a network other than the Internet and connects to the telephone terminal in response to a predetermined operation by a caller during a call via the Internet.
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