The present invention provides a technique where application servers can initiate sessions
within the IMS network by initially sending session initiation messages to the I-CSCF. By …

US8195158B2 - Maintaining IMS registration while disconnected from IP bearer - Google
Patents US8195158B2 - Maintaining IMS registration while disconnected from IP bearer …

Updates on access network capability are provided to an IP Multimedia System (IMS)
network. A User Equipment (UE) that is connected to the access network initiates a …

ABSTRACT A method of enabling dual registration of a User Equipment, UE, with first and
second Internet Protocol Multimedia Subsystem, IMS, networks, the method comprising, in …

A method of dynamically allocating a user to one of a pool of Application Servers within an
IP Multimedia Subsystem network. The pool of Application Servers is configured to provision …

In instances where a user equipment (UE) encounters an issue during an attempt to register
for Internet Protocol Multimedia Subsystem (IMS) service, the UE is configured with …

The invention relates to a method of establishing a session between client user terminals
accessing IP Multimedia Sub system, IMS, networks. At least one of the IMS networks …

The present invention is aimed to provide means and methods for recovery of an IP
Multimedia Subsystem IMS where a Home Subscriber Server HSS holding subscriber data …

A method of handling traffic within an IP Multimedia Subsystem, IMS, network. The method
comprises registering an IMS user with a first Serving Call Session Control Function, S …

The present invention provides a technique where application servers can initiate sessions
within the IMS network by ini tially sending session initiation messages to the I-CSCF. By …