A method for realizing an lntemet protocol (1P) multimedia subsystem (IMS) disaster
tolerance includes the steps as fol lows. An S-CSCF receives a user registration, and backs …

A method for matching initial request messages in the IP multimedia Subsystem service
triggering process comprises: before the S-CSCF forwards an initial request message to the …

The present invention provides a method, a device, and a system for realizing a registration
mechanism of an IP multimedia subsystem. In the above method, a S-CSCF obtains a …

IP Multimedia Subsystem (IMS) are provided. The method includes: triggering a redundant
Call Session Control Func tion (CSCF); obtaining, by the redundant CSCF, user backup data …

A method for switching the session control path of IMS centralized services is provided.
When the condition for switching the session control path is satisfied during the ICS session …

(57) ABSTRACT A method and information processing system provide reli ability in an IP
multimedia subsystem network. The method includes monitoring a S-CSCF (210) for its …

A service provision method in an Internet Protocol Multimedia Subsystem (IMS) network is
provided. A service request message is transmitted from a first user terminal to a second …

BACKGROUND An IP (internet protocol) multimedia core network sub system (IMS) is an IP-
based network architecture proposed by the 3rd generation partnership project (3GPP) …

US20080208993A1 - Method For Distributing New Services in an Internet Multimedia
Subsystem (Ims), and a Node Adapted Therefore - Google Patents US20080208993A1 - Method …

Associates Ltd.(57) ABSTRACT An IP multimedia subsystem (IMS)-based service sharing
system includes an IMS, a master IMS terminal registered in the IMS, and a slave IMS …