Apparatus and method for providing caller information

A method for providing caller information, the method comprising:

• determining whether a telephone number of a caller included in an incoming call is registered in an address book storage unit;
• if the telephone number of the caller is not registered in the address book storage unit, determining whether the telephone number of the caller is registered in a caller identification information storage unit;
• if the telephone number of the caller is not registered in the caller identification information storage unit, storing a caller identification information of the telephone number of the caller, contents of a call with the caller, and a keyword extracted from the call contents in the caller identification information storage unit;
• and
• if the telephone number of the caller is registered in the caller identification information storage unit, displaying a keyword from the caller identification storage unit on a display unit along with the telephone number of the caller as caller information.

A method for providing caller information, the method comprising:

• determining if a telephone number of a terminal included in a received data communication is registered in an address book storage unit;
• if the telephone number of the terminal is not registered in the address book storage unit, determining whether the telephone number of the terminal is registered in a caller identification information storage unit;
• if the telephone number of the terminal is not registered in the caller identification information storage unit, extracting a keyword from the data communication in the caller identification information storage unit;
• and
• if the telephone number of the terminal is registered in the caller identification information storage unit, displaying a keyword from the caller identification storage unit on a display unit along with the telephone number of the terminal as caller information.

An apparatus to provide caller information, the apparatus comprising:

• an address book storage unit to store telephone numbers and names received from a terminal;
• a caller identification information storage unit to store a telephone number of a terminal not registered in the address book storage unit and a keyword extracted from a data communication;
• a keyword extraction unit to extract the keyword by analyzing the data communication;
• and
• a control unit to control the storage of the telephone number and the keywords in the caller identification unit and to control the keyword extraction.