发明名称 |
SYSTEM AND METHOD FOR ALTERNATING BETWEEN IN-BAND AND OUT-OF-BAND COMMUNICATION PATH |
摘要 |
Systems, methods and devices are disclosed useful for enabling wireless signals representing control messages to be sent between a wireless handheld telephony device and a call control server during an ongoing communication session when an out-of-band path becomes unavailable, the communication session being controlled by the call control server. |
申请公布号 |
CA2729502(C) |
申请公布日期 |
2014.10.14 |
申请号 |
CA20112729502 |
申请日期 |
2011.01.27 |
申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
GAO, DAPENG;ZENG, XIMING;GUPTA, ABHINAV;SHATSKY, ALEXANDER |
分类号 |
H04W28/12;H04W4/20 |
主分类号 |
H04W28/12 |
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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