| 摘要 |
<p>This IP telephone set (3) includes a CPU (30) acquiring a MAC address (5a) of a personal computer (5) when the same is capable of communicating with the personal computer, while a server (1) previously registers an extension number (3b) corresponding to the IP telephone set. The CPU controls the server to register an extension number corresponding to the MAC address of the personal computer in association with the IP telephone set, thereby rendering the IP telephone set usable as a telephone set corresponding to the IP telephone set itself and a telephone set of the personal computer.</p> |
