Communication terminal device, information providing device, and cellular telephone system

摘要

A communication terminal device includes a first display part configured to display streaming sub information, a second display part configured to display streaming main information related to the streaming sub information, a sub information reception unit configured to receive the streaming sub information sequentially transmitted from an information providing device and to display the received streaming sub information on the first display part, a request transmission unit configured to transmit to the information providing device an information request signal for requesting the streaming main information related to the streaming sub information displayed on the first display part, and a main information reception unit configured to receive the streaming main information and to display the streaming main information on the second display part.