9. A device for providing caller identification information in a caller's mobile phone, which comprises: a display unit; a memory configured for storing at least one word or phrase; and a control unit configured for, when there is a request for an addition of a word or phrase after input of a call recipient's phone number by a caller, receiving an input of the word or phrase from the caller, and when the caller inputs a request for making an outgoing call, generating an outgoing call message, which includes a caller's phone number, the call recipient's phone number, and an input word or phrase, and sending the generated outgoing call message to the call recipient's mobile phone, wherein, when there is the request for the addition of the word or phrase, the control unit generates an identifier for distinguishing the call recipient's phone number and the word or phrase, adds the identifier after the call recipient's phone number, and receives input of the word or phrase from the caller, and continuously arranging the call recipient's phone number, the identifier and the word or phrase in order and displaying the call recipient's phone number, the identifier and the word or phrase on a single screen of the caller's mobile phone.
9. A device for providing caller identification information in a caller's mobile phone, which comprises: a display unit; a memory configured for storing at least one word or phrase; and a control unit configured for, when there is a request for an addition of a word or phrase after input of a call recipient's phone number by a caller, receiving an input of the word or phrase from the caller, and when the caller inputs a request for making an outgoing call, generating an outgoing call message, which includes a caller's phone number, the call recipient's phone number, and an input word or phrase, and sending the generated outgoing call message to the call recipient's mobile phone, wherein, when there is the request for the addition of the word or phrase, the control unit generates an identifier for distinguishing the call recipient's phone number and the word or phrase, adds the identifier after the call recipient's phone number, and receives input of the word or phrase from the caller, and continuously arranging the call recipient's phone number, the identifier and the word or phrase in order and displaying the call recipient's phone number, the identifier and the word or phrase on a single screen of the caller's mobile phone. 10. The device according to claim 9 , wherein the control unit receives the input of the recipient's phone number as a phone number directly input by the caller.