To efficiently and exactly specify the connecting destination and communication environment of the opposite party regardless of the communication environment of the opposite party when performing speech while utilizing an Internet speech device.

The transmitting/receiving means of the speech device transmits information containing telephone number information and user side information inputted by an input means through an Internet line to a connecting destination retrieval database device provided on that Internet line, and while referring to the telephone number information, the connecting destination retrieval database device retrieves the connecting destination and returns the information of the retrieved connecting destination through the Internet line to the transmitting/receiving means on the basis of the user side information.