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Communication service unit and communication system

  • US 20040008712A1
  • Filed: 08/05/2002
  • Published: 01/15/2004
  • Est. Priority Date: 01/30/2001
  • Status: Abandoned Application
First Claim
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1. A communication service unit, which is connected with a plurality of communication terminals, receives communication information sent from one communication terminal of a sending end for an original purpose of communication and sends additive information in case of the sending of the communication information to one communication terminal of a receiving end, characterized in that the additive information relating to or not relating to the communication based on the communication information is sent to the communication terminal of the receiving end within a transmission band permitted for the sending of the communication information before the sending of the communication information, during the sending of the communication information or after the completion of the sending of the communication information.

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