发明名称 |
Emergency packet data network communication system and call features |
摘要 |
A method and apparatus for providing callback from a called party to an anonymous initiating user device after a dropped call in a packet data network communication system includes a first step of initiating a call from the user device on an originating network. A next step includes detecting a missing identity of the user device. A next step includes assigning an interim identity to the user device. A next step includes routing the call with the associated interim identity to the called party. A next step includes disconnecting of the call, with the user device roaming to a new network. A next step includes attaching of the user device on the new network with PDP context activation. A next step includes providing the interim identity of the user device and an originating network identity to the new network. A next step includes forwarding a callback of the called party from the originating network to the new network to the user device camped on the new network using the information from the providing step.
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申请公布号 |
US2004192252(A1) |
申请公布日期 |
2004.09.30 |
申请号 |
US20030403904 |
申请日期 |
2003.03.31 |
申请人 |
AERRABOTU NAVEEN;PECEN MARK E.;ZHAO YILIN |
发明人 |
AERRABOTU NAVEEN;PECEN MARK E.;ZHAO YILIN |
分类号 |
H04L12/56;H04W4/22;H04W8/26;H04W36/14;H04W76/02;(IPC1-7):H04Q7/20 |
主分类号 |
H04L12/56 |
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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