A radio terminal corresponding to a first radio terminal associated with a second
radio terminal comprises following units. A first receiving unit receives a first
request issued from the second radio terminal. An establishing unit establishes,
in response to the first request, a radio link with respect to the second radio
terminal. A setting unit sets, on the radio link, a connection with the second
radio terminal. A detecting unit detects an event in association with the second
radio terminal. A first transmitting unit transmits, to the second radio terminal
via the connection, a first request message representing that first service information
concerning the second radio terminal should be transmitted to the first radio terminal,
when the detecting unit detects the event.