| 发明名称 |
SYSTEM AND METHOD FOR INDICATING EMERGENCY CALL BACK TO USER EQUIPMENT |
| 摘要 |
<p>A method is provided for indicating an IMS (Internet Protocol Multimedia Subsystem) emergency call back to a user equipment 14 and an access network 15. The method comprises including in a message 30 from a PSAP (Public Safety Answering Point) 22 to the user equipment 14 and the access network 15 an indication 32 that the emergency call back is from the PSAP 22.</p> |
| 申请公布号 |
CA2690236(A1) |
申请公布日期 |
2008.12.18 |
| 申请号 |
CA20072690236 |
申请日期 |
2007.12.04 |
| 申请人 |
RESEARCH IN MOTION LIMITED |
发明人 |
PURNADI, RENE W.;ISLAM, M. KHALEDUL |
| 分类号 |
H04L12/66;H04M11/06;H04Q3/64 |
主分类号 |
H04L12/66 |
| 代理机构 |
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