To provide a communication terminal device capable of improving the usability of speed dialing and/or automatic dialing.
The communication terminal device 1 has a facsimile function and is provided with: a destination specification part capable of directly specifying a destination by a key operation and also specifying it by speed dialing and/or automatic dialing; and a reporting part for judging whether or not the destination is already registered in the speed dialing and/or automatic dialing when transmission is instructed by a user to the destination directly specified by the key operation in the destination specification part, and reporting to the user that the destination is already registered when the destination is already registered.