| 摘要 |
Presence information is provided in a personal communications system comprising an interface unit (21), the interface unit comprising a computer interface connecting the interface unit (21) to a client computer (1); and a first transceiver exchanging radio signals between interface unit (21) and a mobile telephone (22) according to a first wireless communication protocol; and/or a telephone interface connecting interface unit (21) to a desktop telephone (23). The method comprises the steps of providing a presence message indicating whether the mobile telephone (22) or the desktop telephone (23) is involved in a phone call; and transmitting the presence message to the client computer (1) via the computer interface. Thus better and more reliable presence information taking use of mobile or desktop telephones into account can easily be provided. |
