| 摘要 |
PROBLEM TO BE SOLVED: To provide a technology for enabling a caller to flexibly select communication means used for communication with a receiver while considering presence of the receiver.SOLUTION: A communication terminal 1 comprising a plurality of communication tools stores permission communication information including identification information for identifying one or more communication tools (permission tools) that are permitted to be used by each communication partner, for each presence of an operator; and broadcasts permission communication information corresponding to presence after change every time the change of presence of the operator occurs. The communication terminal 1 also receives permission communication information broadcast from another communication terminal 1; extracts identification information on a permission tool for the operator from the permission communication information; and stores the extracted information in association with a transmission source. When accepting a communication request accompanied by designation of a communication partner from the operator, the communication terminal 1 displays a permission tool shown by identification information stored in association with the communication partner. |
