An application function (AF) of an IP Multimedia Subsystem (IMS) can be in communication
with multiple Policy Control Function (PCF) domains of a telecommunication network. The …

An individual IMS terminal acquires address and place infor mation of a service discovery
server present in the local IP network from an AP. Next, the individual IMS terminal may …

The method for requesting an Internet Multimedia Sub-system (IMS) unregistered User
Equipment (UE) to perform IMS registration including initiating an IMS domain session or …

This application is a continuation application of US patent application Ser. No. 12/680,426,
filed Aug. 26, 2010, now US Pat. No. 8,503,312, which is a 371 of PCT/EP2007/06.0346 filed …

A method, apparatus and computer program product are provided to facilitate the handover
from a packet switched network to a circuit switched network while an Internet protocol (IP) …

A method of exchanging content between a User Equipment, UE, and an Application Server,
AS, of an IP Multimedia Subsystem, IMS, or between the UE and a peer UE. The method …

A method is provided which relates to online charging within an IP Multimedia Subsystem,
IMS. The method comprises at an IMS charging node (30):(a) receiving (SC) a credit control …

A method of enabling a legacy host, attached to a local network, to discover a service
provided by a remote server. The method comprises the following steps to be performed by …

In one embodiment, a scheme is disclosed for managing call routing in a network
environment including a circuit-switched (CS) network and an IP multimedia subsystem …

According to one aspect, a communication network system comprising at least one first
network and at least one second network providing application services over the first …