| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide technology for efficiently setting a call by informing a call controller corresponding to the position of a destination side communication device of a setting request of the call by a position management device. <P>SOLUTION: The call controller which is connected to the position management device via a network receives the setting request of the call, retrieves positional information of the destination side communication device from a position data table in response to the setting request of the call, when the positional information is retrieved as the result of retrieval, sets the call on the basis of the positional information, and when the positional information is not retrieved as the result of retrieval, informs the position management device of the setting request of the call. The position management device receives information of the setting request of the call from the call controller, refers to a storage part which stores management information indicating which one of the call controllers controls call addressed to each communication device and informs the call controller which controls the call to the destination side communication device of the setting request of the setting request of the call on the basis of the referred management information. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
