The disclosure relates to methods and system for handling immersive services with feature tags in an 3GPP IP multimedia subsystem (IMS) and 3GPP mission critical services (MCX). A user equipment uses the media tags, feature tags with unique IMS communication service identifier (ICSI) and IMS application reference identifier (IARI) to communicate with the IMS network for determining the immersive services in the communication. Accordingly, a method includes: performing, a registration with a network for handling immersive call services based on feature tags included in a session initiation protocol (SIP) REGISTER request; determining whether the network provides a provision for the handling of immersive call services based on an SIP REGISTER response; and sending an SIP INVITE request including feature tags to a second client device via the network based on determining that the network provides the provision of handling immersive media streams. Thus, the immersive call is established by the first client device with the second client device.

The disclosure relates to methods and system for handling immersive services with feature tags in an 3GPP IP multimedia subsystem (IMS) and 3GPP mission critical services (MCX). A user equipment uses the media tags, feature tags with unique IMS communication service identifier (ICSI) and IMS application reference identifier (IARI) to communicate with the IMS network for determining the immersive services in the communication. Accordingly, a method includes: performing, a registration with a network for handling immersive call services based on feature tags included in a session initiation protocol (SIP) REGISTER request; determining whether the network provides a provision for the handling of immersive call services based on an SIP REGISTER response; and sending an SIP INVITE request including feature tags to a second client device via the network based on determining that the network provides the provision of handling immersive media streams. Thus, the immersive call is established by the first client device with the second client device.

A method of managing access to a plurality of Packet Switched (PS) networks of a wireless communication apparatus including a plurality of Subscriber Identity Modules (SIMs) includes obtaining first information indicating data service-related preferences for the plurality of SIMs, selecting at least one SIM necessary for accessing each of the plurality of PS networks from among the plurality of SIMs, based on the first information and second information indicating a wireless network capable of being provided by an operator corresponding to each of the plurality of SIMs, and accessing each of the plurality of PS networks by using the selected at least one SIM.

A method of managing access to a plurality of Packet Switched (PS) networks of a wireless communication apparatus including a plurality of Subscriber Identity Modules (SIMs) includes obtaining first information indicating data service-related preferences for the plurality of SIMs, selecting at least one SIM necessary for accessing each of the plurality of PS networks from among the plurality of SIMs, based on the first information and second information indicating a wireless network capable of being provided by an operator corresponding to each of the plurality of SIMs, and accessing each of the plurality of PS networks by using the selected at least one SIM.

A method of operating a network server, such as a mobile application gateway, connect devices on a cellular or carrier network with individual networks, such as enterprise voice and data networks or residential networks. The effects of the present invention are far reaching in terms of transferring effective call control from the cellular network into the control of the individual network, such as the enterprise, and enabling new business models for the purchase of cellular service from a public cellular carrier by an enterprise.

A mobile communication method according to the present invention includes the steps of: sending “INVITE” from a UE#1 to a P-CSCF/VATF in a visited network of the UE#1; sending “INVITE” from the P-CSCF/VATF to an IMS; and allocating, by the P-CSCF/VATF, an MGW#1 to the path for voice communications.

It is provided a method, comprising monitoring, for each of plural attempts of a web identity to register for an internet protocol multimedia service, if the respective attempt is received; generating, for each of the plural attempts if the respective attempt is received, a respective private user identification based on the web identity and a respective distinguishing identifier, wherein probability that two of the private user identifications have a same value is less than a predefined limit; providing the respective private user identification in response to the respective attempt.

Various embodiments of the present technology allow multi-realm support at US-CSCF to IMS by the same I/S-CSCF nodes. Some embodiments allow for a registration message to be received from an IMS client. The registration message can be used to establish, through an Internet Protocol Multimedia Subsystem (IMS) core network, a service between a first endpoint associated with a first realm and a second endpoint associated with a second, different realm. The registration message can be translated so that the second endpoint believes the first endpoint is associated with the second realm before being transmitted to the second endpoint. Upon receiving a successful IMS registration message from the IMS core network, a binding can be created between the first endpoint and the second endpoint.

A User Equipment (UE) registers with a Long Term Evolution (LTE) network. The UE registers with an Internet Multimedia Subsystem (IMS) over the LTE network. The UE registers with a Wireless Fidelity (WIF) network. The UE receives a status request from the LTE network responsive to a Session Initiation Protocol (SIP) invite for the UE received at the IMS. The UE transfers a status response to the LTE network that indicates the WIFI network responsive to the status request. The UE receives the SIP invite from the IMS over the WIFI network. The UE exchanges user data for the media session over the WIFI network.

A mobile application gateway configured to interconnect mobile communication devices on a cellular network with an enterprise network is provided. The mobile application gateway includes a voice and data signaling gateway configured to provide routing functionalities, service functionalities and admission control. A gateway GPRS support node (GGSN) is configured to establish a secure data session between one or more of the mobile communication devices and the enterprise network by establishing a GPRS tunneling protocol (GTP) tunnel between a carrier-hosted serving GPRS support node (SGSN) and the GGSN.