Patent attributes
A information communication terminal is provided which includes: a voice communication device that transmits and receives voice signals to and from an other telephone equipment via a public switched telephone network; a data communication device that transmits and receives call data signals as digitized voice signals to and from an other terminal via an IP network; a message communication device that transmits and receives data signals of an instant message which contains character information to and from an other terminal via an IP network; and a control device that makes the message communication device transmit the data signals of the instant message to a destination of the call data signals so as to enable communication by voice as well as character information, when one of the voice signals and the call data signals is received while the other is being transmitted and received.