A system and method for allowing legacy circuit switch user equipment (CS UE) to operate
via a packet switch system, such as an IP Multimedia Subsystem (IMS) system, is provided …

A method of facilitating access to services of an IP Multimedia Subsystem network by
services located behind an access point to said network. The access point is associated with …

Abstract In an Internet Protocol Multimedia Subsystem (IMS), a user profile is provided with
an extended schema that provides one or more error code definitions and associated error …

US9479600B2 - Methods and apparatuses for initiating provisioning of subscriber data in a HSS
of an IP multimedia subsystem network - Google Patents US9479600B2 - Methods and …

An apparatus and method of processing a service request in an IP multimedia core network
is provided. The method includes the steps of receiving a service request initiated by a first …

Abstract A SIP Gateway (SIPGW) coupled to an IP Multimedia Subsystem (IMS) is disclosed
that detects when a first party, using a Plain Ordinary Telephone Service (POTS) telephone …

The present invention provides for the easy expansion of the number of nodes in an IP
multimedia subsystem (IMS) in order to handle the expected network traffic. The IMS is more …

A method, system and computer-usable medium are provide for managing the Open
Channel for IMS command correctly the UICC to have knowledge about the specific status …

(57) ABSTRACT A method of facilitating access to services of an IP Multime dia Subsystem,
by users groups that require alternative han dling in relation to the standard handling of IP …

(57) ABSTRACT A method for registration of endpoints within in IP Multime dia Subsystem
network is described. One embodiment includes receiving a request from an endpoint to …