Abstract: A method and system for providing IP Multimedia Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and system for providing IP Multimedia Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and system for providing IP Multimedia Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and system for providing IP Multimedia Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) identity associated with a public user a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and system for providing IP Multi-media Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and system for providing IP Multi-media Subsystem (IMS) session continuity to a User Equipment (UE) across a plurality of communication networks is provided. The UE traverses from a first communication network to a second communication network. A public user identity associated with a private user identity of the UE is registered with the first communication network by using a first address. The method includes generating (404) a complimentary private user identity associated with the public user identity. The method also includes obtaining (406) a second address from the second communication network when the UE traverses from the first communication network to the second communication network. Moreover, the method includes registering (408) the public user identity associated with the complimentary private user identity with the first communication network by using the second address.

Abstract: A method and network architecture for establishing a specific communication session between a user equipment (UE) (102) and a called entity (106) in a communication network (100) is disclosed. The communication network includes a home overlay network (110) and a visitor overlay network (112). The method includes registering the UE through a home-network entity (114) during registration of the UE with the home overlay network. The method further includes sending an indication message to the UE to indicate status of the registration of the UE. In addition, the method includes sending a session-initiation message to the home-network entity by the UE, to initiate the specific communication session. Further, the method includes routing the session-initiation message to a specific-session entity (122) attached with the home overlay network or the visitor overlay network.