Invention Grant
US08600031B2 Method for connecting calls between an IP multimedia subsystem (IMS) domain and a circuit switched (CS) domain
有权
用于在IP多媒体子系统（IMS）域和电路交换（CS）域之间连接呼叫的方法
- Patent Title: Method for connecting calls between an IP multimedia subsystem (IMS) domain and a circuit switched (CS) domain
- Patent Title (中): 用于在IP多媒体子系统（IMS）域和电路交换（CS）域之间连接呼叫的方法
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Application No.: US12304970Application Date: 2007-05-28
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Publication No.: US08600031B2Publication Date: 2013-12-03
- Inventor: Kyung-Ae Yoon , Jae-Seung Song , Mi-Seon Ra
- Applicant: Kyung-Ae Yoon , Jae-Seung Song , Mi-Seon Ra
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2007-0029859 20070327
- International Application: PCT/KR2007/002570 WO 20070528
- International Announcement: WO2007/145434 WO 20071221
- Main IPC: H04M3/46
- IPC: H04M3/46 ; H04M3/58 ; H04L12/16 ; H04L12/66 ; H04W4/16
Abstract:
A call connection method is provided. When a terminal is in an IMS unregistered state, information indicating whether to perform a session transfer toward a CS domain is stored in a server during a registration or deregistration process. When receiving a call connection request message over an IMS, if the terminal is in the IMS unregistered state and the information indicates the session transfer, the call transfer toward the CS domain can be performed.
Public/Granted literature
- US20120177194A1 METHOD FOR CONNECTING CALL Public/Granted day:2012-07-12
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