SYSTEM FOR MANAGING SHORT MESSAGE SERVICE, DEVICE FOR TRANSFERRING SHORT MESSAGE, DEVICE FOR SUPPLYING INFORMATION SPECIFYING TRANSFER MODE OF SHORT MESSAGE, AND METHOD FOR TRANSFERRING SHORT MESSAGE

摘要

A short message with a destination of a single terminal device that has been defined by a user on the transmitting side, from among multiple terminal devices used by an identical user on the receiving side, is forwarded to and received by another predetermined terminal device that has been defined as a destination. Communication relay equipment included between multiple networks operated by network operators is provided with functions of temporarily storing a short message and storing information that defines a shortmessage forwarding manner. In transmitting the short message, even if the original destination is not capable of receiving the message, the short message is transmitted to another destination based upon the information that defines the short message forwarding manner.