A mobile terminal device includes an input unit for inputting addressee information data relevant to an addressee of a videophone communication including at least a phone number, a data storage unit for storing a plurality of the addressee information data inputted by the input unit in a group, a retrieval unit for retrieving one of plural groups stored in the data storage unit, a set unit for executing a retrieval process from the plural groups stored in the data storage unit using the retrieval unit based on the set addressee information data of the addressee after setting the addressee of the videophone communication to set the addressee corresponding to the addressee information data of the retrieved group as the addressee of the videophone communication, and a communication unit for executing the videophone communication based on the addressee information of the addressee of the videophone communication set by the set unit.