A communication system comprising: a first communication device being in communication with a second communication device via a communication connectivity to a first communication network; the first communication device having a first handover module (100(a)) operable to handover communication connectivity from the first communication network to a second communication network; and the second communication device having a second handover module (102(a)) cooperatively operable with the first handover module (100(a)) to maintain communication between the second communication device and the first communication device while the first handover module (100(a)) operates to handover communication connectivity from the first communication network to the second communication network characterized in that the first communication device is configured to, prior to initiating the handover of the communication connectivity from the first communication network to the second communication network, send identifying information of connectivity for its radio transceiver, network providers and/or service providers to the second communication device, the identifying information sent to the second communication device including information identifying the first communication device's second communication network connection; wherein the first handover module (100(a)) is configured to initiate the handover of the communication connectivity from the first communication network to the second communication network by sending a message to the second handover module (102(a)) along with information identifying the first communication device's second communication network connection, wherein the second handover module (102(a)) is configured to recognize that the message is from the first communication device based on the previously sent information identifying the first communication device's second communication network connection and implement the handover by calling the first communication device via the second communication network. a first communication device being in communication with a second communication device via a communication connectivity to a first communication network; the first communication device having a first handover module (100(a)) operable to handover communication connectivity from the first communication network to a second communication network; and the second communication device having a second handover module (102(a)) cooperatively operable with the first handover module (100(a)) to maintain communication between the second communication device and the first communication device while the first handover module (100(a)) operates to handover communication connectivity from the first communication network to the second communication network characterized in that the first communication device is configured to, prior to initiating the handover of the communication connectivity from the first communication network to the second communication network, send identifying information of connectivity for its radio transceiver, network providers and/or service providers to the second communication device, the identifying information sent to the second communication device including information identifying the first communication device's second communication network connection; wherein the first handover module (100(a)) is configured to initiate the handover of the communication connectivity from the first communication network to the second communication network by sending a message to the second handover module (102(a)) along with information identifying the first communication device's second communication network connection, wherein the second handover module (102(a)) is configured to recognize that the message is from the first communication device based on the previously sent information identifying the first communication device's second communication network connection and implement the handover by calling the first communication device via the second communication network.