In a method of establishing callback communication between first and second terminals
via a relay station, the first terminal sends a callback request for establishing
the callback communication to the second terminal. The method comprises the steps
of: (1) establishing first connection between the first terminal and the relay
station; (2) sending the callback request from the first terminal to the relay
station; (3) establishing second connection between the second terminal and the
relay station with the first connection being kept established in response to a
request from the second terminal; and (4) linking the first connection with the
second connection in order to establish the callback communication between the
first and second terminals. Further, a relay station performing the method is also
provided. This method dispenses with any identifier for identifying the first terminal
on performing the callback.
