| 发明名称 |
System, method and device for maintaining a communication session suspended for servicing of power supply |
| 摘要 |
Systems, methods and programmed instructions are disclosed useful for maintaining a communication session previously established between a first telephony device (710) and at least one second telephony device (721) while a power supply of the first telephony device (710) is serviced. |
| 申请公布号 |
EP2330837(B1) |
申请公布日期 |
2015.09.02 |
| 申请号 |
EP20090178126 |
申请日期 |
2009.12.04 |
| 申请人 |
BLACKBERRY LIMITED |
发明人 |
YACH, DAVID, PAUL;GISBY, DOUGLAS |
| 分类号 |
H04W4/16;H04M1/73;H04W52/02 |
主分类号 |
H04W4/16 |
| 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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