Communication system for carrying out call control of communication terminal and communication method therefor

A communication system for carrying out call control of a communication terminal,

• the communication system comprising:
• a shared number managing unit configured to manage a shared number terminal identifier for identifying each of a plurality of communication terminals, respectively, to which a shared telephone number commonly shared by the plurality of communication terminals is assigned;
• an individual number managing unit configured to manage an individual number terminal identifier for identifying each of the plurality of communication terminals to which an individual telephone number is exclusively assigned respectively;
• and
• a user information managing unit configured to manage user information for each of the plurality of communication terminals, the user information including a shared user profile for the shared number terminal identifier, an individual user profile for the individual number terminal identifier, and location information of each of the plurality of communication terminals identified by either the shared number terminal identifier or the individual number terminal identifier;
• wherein the communication terminal is assigned with the shared telephone number and the individual telephone number;
• and
• wherein when an incoming call to the shared telephone number is received, the communication terminal is identified based upon the individual number terminal identifier in correlation with the shared number terminal identifier of the shared telephone number, to which the incoming call is received, managed by the shared number managing unit, the location information, the shared user profile, and the individual user profile managed by the user information managing unit, so as to make the incoming call to the identified communication terminal.