Communication system, communication method, and computer-readable storage medium

摘要

A communication system includes a call management server; communication terminals; and a positional information server. The positional information server stores therein positional information and information leakage risk information of each communication terminal, updates the positional information and the information leakage risk information in accordance with a position of the communication terminal, and transmits the updated information together with corresponding communication terminal information to the call management server. The call management server updates the positional information and the information leakage risk information of a communication terminal when receiving the information from the positional information server, and transmits a list containing at least a terminal name, latest positional information, and latest information leakage risk information of each communication terminal capable of joining the communication to a communication terminal. The communication terminal displays the list in a different manner of the positional information in accordance with the information leakage risk information.

主权项

1. A communication system comprising:
a call management server connected to a communication network; a plurality of communication terminals configured to make communication with one another through the call management server, the communication terminals being connected to the communication network; and a positional information server connected to the communication network, the positional information server
includes a terminal positional information storage unit configured to store therein positional information and information leakage risk information of each of the communication terminals,updates the positional information and the information leakage risk information of a communication terminal stored in the terminal positional information storage unit in accordance with a position of the communication terminal, andtransmits the updated latest positional information and the updated latest information leakage risk information together with corresponding communication terminal information to the call management server, the call management server
includes a destination list storage unit configured to store therein a list of communication terminals capable of joining communication for each of the communication terminals and a terminal status storage unit configured to store therein at least a terminal name, latest positional information, and latest information leakage risk information of each of the communication terminals,updates the positional information and the information leakage risk information of a corresponding communication terminal stored in the terminal status storage unit when receiving the positional information and the information leakage risk information together with the communication terminal information from the positional information server, andtransmits the list containing at least the terminal name, the latest positional information, and the latest information leakage risk information of each of the communication terminals capable of joining the communication to a communication terminal as a communication source based on the destination list storage unit and the terminal status storage unit when receiving a list request from the communication terminal as the communication source, and the communication terminal as the communication source displays the list received from the call management server in a different display manner of the positional information in accordance with the information leakage risk information.