Invention Grant
US08340084B2 System and method for indicating circuit switched access at IMS registration
有权
用于在IMS注册时指示电路交换接入的系统和方法
- Patent Title: System and method for indicating circuit switched access at IMS registration
- Patent Title (中): 用于在IMS注册时指示电路交换接入的系统和方法
-
Application No.: US12594182Application Date: 2007-03-30
-
Publication No.: US08340084B2Publication Date: 2012-12-25
- Inventor: Kazuhiko Nakada , Ralf Keller , George Foti
- Applicant: Kazuhiko Nakada , Ralf Keller , George Foti
- Applicant Address: SE Stockholm
- Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee: Telefonaktiebolaget LM Ericsson (publ)
- Current Assignee Address: SE Stockholm
- International Application: PCT/IB2007/000843 WO 20070330
- International Announcement: WO2008/120028 WO 20081009
- Main IPC: H04L12/66
- IPC: H04L12/66
Abstract:
In IP Multimedia Subsystem (IMS) IMS Control Channel Protocol (ICCP) is used between a user equipment (UE) and IMS Control Channel Function (ICCF) and Session Initiated Protocol (SIP) interface (between to ICCF, Call Session Control Function and Application Server) to support the indication of Circuit Switched (CS) access utilizing P-Access-Network-Information header. The indication can be used by an S-CSCF or AS for different purposes such as routing decision, charging, and presence info.
Public/Granted literature
- US20100157985A1 SYSTEM AND METHOD FOR INDICATING CIRCUIT SWITCHED ACCESS AT IMS REGISTRATION Public/Granted day:2010-06-24
Information query
