| 摘要 |
<p>PROBLEM TO BE SOLVED: To display the presence of a user in a destination of call origination without requesting presence information of the user in the case of extension call origination in a present base, and to display the presence information of the user in the destination of call origination without making a call originating telephone set require the presence information even if a telephone call is originated from the present base to another base.SOLUTION: If an incoming call comes to a telephone terminal belonging to a present call control device, presence information is acquired for acquiring presence information relating to the telephone terminal or presence information relating to a group to which the telephone terminal belongs. The acquired presence information is reported to a source of call origination. If presence information of another telephone terminal or group is reported, the telephone terminal is made display the acquired presence information.</p> |
