| 发明名称 |
CHARGE CONTROL SYSTEM IN SEMIIAUTOMATIC SWITCHING SYSTEM |
| 摘要 |
PURPOSE:To perform automatic rate charging in an automatic telephone switching board by eliminating the requirement of charging procedures of a manual board operator by discriminating the response signals between the manual board operator and a called party to an incoming call. |
| 申请公布号 |
JPS5291305(A) |
申请公布日期 |
1977.08.01 |
| 申请号 |
JP19760007443 |
申请日期 |
1976.01.28 |
| 申请人 |
NIPPON ELECTRIC CO |
发明人 |
TAKANASHI ATSUICHIROU;INOUE AKIO |
| 分类号 |
H04M15/20;(IPC1-7):04M15/20 |
主分类号 |
H04M15/20 |
| 代理机构 |
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代理人 |
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| 地址 |
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