A packet radio communications system communicates internet packets to and/or from mobile user equipment. The system comprises a core network comprising a plurality of packet data networks, each including network communications elements operable to communicate internet packets using an internet protocol transport plane, and a common gateway support node. ... Orange Sa
Apparatus for and methods of enabling a gateway node of a first packet-switched data network to select a first channel for transferring a data packet to a destination packet data protocol address of a correspondent node provided service in the first network are disclosed. The gateway node is configured to select the first channel from a plurality of channels configured to transfer data packets to the destination packet data protocol address of the correspondent node, wherein the data packet is sent from a mobile node of a second packet-switched data network external to the first network, and wherein the mobile node has been in a communication session with the correspondent node while provided service in a third packet-switched data network different to the second network.. ... Orange Sa