Patent ID: 8855582

Claim:
A method of processing missed call information at a mobile communication terminal for Push To Talk (PTT) that receives a PTT call, comprising: buffering the voice of an originator of the PTT call, when receiving the PTT call; determining whether a response to the PTT call is generated within a time interval from when the PTT call is received; determining that the PTT call is a missed call, when the response is not generated within the time interval; storing missed call information including the buffered voice, originator information, and a time when the missed call occurred, if it is determined that PTT call is a missed call; displaying the originator information and the time when the missed call occurred in the missed call information, if it is determined that the PTT call is a missed call; outputting the buffered voice included in the missed call information in response to a request corresponding to the missed call information, if it is determined that the PTT call is a missed call; and setting a storage capacity for storing missed call information according to input received from a user.