Communication terminal connecting to IP network, and image data transmission method

摘要

Typically, a communication terminal according to an embodiment is a communication terminal for transmitting image data to a transmission destination communication terminal through an initiation protocol (IP) network. The communication terminal includes a display unit, a data size calculation unit, an acquisition unit, a projection calculation unit, and a display controller. The data size calculation unit calculates the size of image data to be transmitted. The acquisition unit acquires speed information indicating a communication speed at which communication can be performed with the transmission destination communication terminal. The projection calculation unit calculates at least either one of a projected communication fee and a projected communication time when transmitting the image data at the communication speed indicated by the acquired speed information. The display controller makes the display unit display the result of calculation of the projection calculation unit.