发明名称 |
Connection control technique providing toll free calls |
摘要 |
A toll free service system allowing toll free calls to provide convenience to both companies and general users is disclosed. A source terminal makes a toll free call on a called party pays line on a circuit switched network. A plurality of servers is connected to the Internet. A signal converter connected to the called party pays line performs a signal conversion between a signal on the circuit switched network and an IP packet signal. A connection controller is connects the signal converter to the Internet and transmits a server selection menu to the source terminal. When a server is selected at the source terminal, the source terminal is connected to the selected server.
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申请公布号 |
US2001015973(A1) |
申请公布日期 |
2001.08.23 |
申请号 |
US20010790508 |
申请日期 |
2001.02.23 |
申请人 |
NEC CORPORATION |
发明人 |
IZUMI AKIRA;TSUJII TATSUYA;OKADA HARUHIKO |
分类号 |
H04M3/42;H04M3/00;H04M7/00;H04M11/00;H04M15/00;H04M15/08;H04Q3/00;(IPC1-7):H04L12/66 |
主分类号 |
H04M3/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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