Patent ID: 7380022

Claim:
A system for transmitting data through an IP core network so that data may be transmitted from an originating source, though a public switched telephone network (PSTN) and through the IP core network to at least one of a wired handset and a wireless handset, the system comprising: an IP core network, the IP core network coupled to the PSTN through an interface, the IP core network also coupled to an access IP network, a radio access network coupled to the IP core network and the wireless handset, a register of wired handsets and wireless handsets from among the at least one of a wired handset and a wireless handset and the registered wired handsets and wireless handsets are on the register when such registered wired handsets and wireless handsets are accessible within IP core network and the radio access network and wherein the register is compiled by the handsets when the handsets become accessible on the network, and upon receipt of data from the originating source, the IP core network simultaneously initiating a ringing of the wired handset available on the register through the access IP network and a paging of the wireless handset available on the register through the radio access network.