| 发明名称 |
System for switching over a voice call |
| 摘要 |
A system and method for switching a voice call from an Instant Messaging (IM) based voice network to a cellular voice network. A telephone adapted to switch a voice call from an Instant Messaging (IM) based voice network to a cellular voice network.
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| 申请公布号 |
US8295821(B2) |
申请公布日期 |
2012.10.23 |
| 申请号 |
US20100835402 |
申请日期 |
2010.07.13 |
| 申请人 |
HO CHI FAI;CHIU SHIN CHEUNG SIMON;TP LAB INC. |
发明人 |
HO CHI FAI;CHIU SHIN CHEUNG SIMON |
| 分类号 |
H04M3/42;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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