Message transfer service

1 . A transfer system configured to provide a message transfer service in a mobile communication system, the transfer system comprising:

an origination terminal configured to create a message and send the message to a destination terminal; and

a server communicatively coupled to the origination terminal, configured to receive the message and to transfer the message to an alternate terminal based on a state of the destination terminal.

2 . The transfer system of claim 1 , wherein the server is configured to unconditionally transfer the message if the message transfer service has been set in the message received from the origination terminal.

3 . The transfer system of claim 1 , wherein the server is configured to transfer the message when the message transfer service has been set in the message received from the origination terminal and the destination terminal does not respond to a paging by the server.

4 . The transfer system of claim 1 , wherein the server is configured to transfer the message when the message transfer service has been set in the message received from the origination terminal and the destination terminal is in a power-off state.

5 . The transfer system of claim 1 , wherein the server comprises, in its subscriber database:

a first field configured to indicate whether a message transfer service has been set;

a second field configured to indicate an identification number of a message transfer terminal;

a third field configured to indicate a condition for message transfer; and

a fourth field configured to indicate whether a result of transmission of a message is to be notified to the origination terminal.

6 . The transfer system of claim 1 , wherein the server notifies a transmission result pertaining to transmission of the message to the origination terminal.

7 . The transfer system of claim 6 , wherein the server notifies the transmission result using a delivery message.

8 . The transfer system of claim 6 , wherein the server stores an identification number of the origination terminal in a memory to be used in notifying the transmission result.

9 . The transfer system of claim 1 , wherein the mobile communication system is an asynchronous mobile communication system.

10 . The transfer system of claim 1 , wherein the server is a message service center.

11 . The transfer system of claim 1 , wherein the server registers or releases a message transfer identification number through a command message.

12 . The transfer system of claim 11 , wherein the command message comprises:

information pertaining to an identification number of the message transfer terminal;

information pertaining to a condition of message transfer; and

information configured to indicate whether a result of transmission of a message is to be notified to the origination terminal.

13 . The transfer system of claim 11 , wherein the command message comprises message transfer service-related information.

14 . A system configured to provide a message transfer service, comprising:

an origination terminal configured to generate and transmit a message;

a destination terminal communicatively coupled to the origination terminal, configured to receive the message;

a server communicatively coupled to the destination terminal, configured to transfer the message to an alternate terminal when the destination terminal is unavailable.

15 . A method for providing a message transfer service, comprising:

transmitting a message from an origination terminal to a server;

in the server, determining whether the message is to be transmitted to a destination terminal or whether it is to be transferred to an alternate terminal; and

transmitting the message to the destination terminal or to the alternate terminal based on the determining whether the message is to be transmitted to the destination terminal or whether it is to be transferred to the alternate terminal.

16 . The method of claim 15 , wherein the determining in the server further comprises:

checking whether a message transfer service has been set for the message;

checking a condition of message transfer if the message transfer service has been set; and

performing message transfer according to the condition of the message transfer.

17 . The method of claim 16 , wherein the condition of the message transfer comprises at least one of:

unconditional message transfer;

message transfer in case of no-response to paging; and

message transfer in case that the destination terminal is in a power-off state.

18 . The method of claim 15 , wherein a subscriber database of the server, comprises:

a first field indicating whether a message transfer service has been set;

a second field indicating an identification number of a message transfer terminal;

a third field indicating a condition for message transfer; and

a fourth field indicating whether a result of transmission of a message is to be notified to the origination terminal.

19 . The method of claim 15 , further comprising:

notifying, by the server, a result of transmission of the message to the origination terminal.

20 . The method of claim 19 , wherein the notifying is performed using a delivery message.

21 . The method of claim 19 , further comprising storing an identification number of an origination terminal in the server.

22 . The method of claim 15 , wherein the mobile communication system is an asynchronous mobile communication system.

23 . The method of claim 15 , wherein the server is a message service center.

24 . The method of claim 15 , wherein the server registers or releases a message transfer identification number through a command message.

25 . The method of claim 24 , wherein the command message comprises:

information pertaining to an identification number of the message transfer terminal;

information pertaining to a condition of message transfer; and

information for indicating whether a result of transmission of a message is to be notified to the origination terminal.

26 . The method of claim 24 , wherein the command message includes message transfer service-related information.