Communication terminal device

An image storing method of a communication terminal device including a display portion, a camera portion for capturing an image of a subject, a memory portion for storing address book information comprising one or more records, wherein each of the one or more records comprise a name and a telephone number, and an input portion for performing an input of a number string comprising one or more digits, the method comprising:

• once a predetermined number of digits in a number string are input, after each digit is input, determining if the number string matches a telephone number of at least one of the one or more records of the address book information;
• if it is determined that the number string matches a telephone number of at least one record, displaying the name from the at least one record;
• and,
• if it is determined that the number string does not match a telephone number of at least one record,
• displaying an indication that the number string does not match a telephone number of at least one record of the address book information while providing an input for a user to perform a registration operation for registering the number string with the address book information,
• while the indication that the number string does not match a telephone number of at least one record of the address book information is being displayed, receiving a registration operation for registering the number string with the address book information from the user via the input,
• in response to the registration operation, displaying a registration screen configured to accept new registration information from the user;
• and
• storing an image captured by the camera portion in the memory portion by correlating the captured image with the accepted new registration information.