Patent ID: 8295451

Claim:
A communication apparatus capable of data communication and voice communication, comprising: at least two communication units that are mutually communicable; an incoming call detection device that is configured to detect presence or absence of an incoming call signal; a notification device that is configured to provide a user, when an incoming call signal is detected by the incoming call detection device, with a notification indicating the detection of the incoming call signal; and a first transfer device that is configured to transfer, when a voice communication is started by a first communication unit out of the at least two communication units after the notification by the notification device is provided, a first connection information indicating a connection condition, when the voice communication is started, of a data communication which has been performed by the first communication unit until the voice communication is started, to a second communication unit other than the first communication unit out of the at least two communication units, wherein the second communication unit is configured to restore the connection condition by the first communication unit and to start a data communication based on the first connection information transferred by the first transfer device, wherein the second communication unit is configured to transfer a second connection information, which indicates a connection condition when the voice communication by the first communication unit is terminated or immediately before the data communication by the second communication unit is terminated, of a data communication which has been performed by the second communication unit, to the first communication unit, and wherein the first communication unit is configured to restore the connection condition by the second communication unit and to start a data communication based on the second connection information transferred by the second communication unit.