| 发明名称 |
Computer-implemented telephone call conferencing system |
| 摘要 |
Some embodiments provide a telephone comprising two telephone handsets, the telephone to establish a conference call between the two telephone handsets, and a computing device coupled to the telephone, the computing device to define the conference call.
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| 申请公布号 |
US7502456(B2) |
申请公布日期 |
2009.03.10 |
| 申请号 |
US20030741362 |
申请日期 |
2003.12.18 |
| 申请人 |
SIEMENS COMMUNICATIONS, INC. |
发明人 |
CASPI RAMI;BEYDA WILLIAM J. |
| 分类号 |
H04M3/42;H04M1/247;H04M1/253;H04M1/725;H04M3/436;H04M3/56;H04M7/00 |
主分类号 |
H04M3/42 |
| 代理机构 |
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