Method for providing supplementary service control menu and system to provide the supplementary service control menu

1. A terminal comprising a processor to control the terminal and a system to provide a supplementary service control menu, the system comprising:

an information collection unit to collect state information associated with a supplementary service;

a level determination unit to determine a level of the supplementary service using the collected state information;

a menu building unit to generate an identifier (ID) of the supplementary service, and to build the supplementary service control menu including the generated ID;

a menu display unit to display the supplementary service control menu, including the supplementary service with an effect associated with the level, on a screen;

an error determination unit to determine whether an error occurs if a change command of the state information is generated in the displayed supplementary service control menu; and

an error processing unit to process, if the error occurs, the error according to a predetermined process associated with the error, and if the error does not occur, to change the state information based on the change command.

2. The terminal of claim 1 , wherein the effect comprises a color predetermined for the level, or an image predetermined for the level.

3. The terminal of claim 1 , wherein the level determination unit extracts subscription information and activation information of the supplementary service from the state information, and determines the level using the extracted subscription information and the extracted activation information.

4. The terminal of claim 1 , further comprising:

an error processing unit to determine whether a conflict among a plurality of activated supplementary services occurs, and to control a portion of the plurality of activated supplementary services to be deactivated if the conflict occurs.

5. The terminal of claim 1 , wherein the information collection unit collects the state information from a service server or a memory unit.

6. The terminal of claim 1 , wherein the error determination unit determines that a not-subscribed-to error occurs if a change command is generated with respect to state information of a supplementary service confirmed as not subscribed to, and

the error processing unit displays an error message on the screen according to the predetermined process associated with the error, and if a subscription of the supplementary service is requested, connects to a communication service provider for the subscription of the supplementary service.

7. The terminal of claim 1 , wherein if the error determination unit determines that a user input error occurs when the change command is generated, the error processing unit displays a re-input request message on the screen according to the predetermined process associated with the error.

8. The terminal of claim 1 , wherein if the error determination unit determines that a network error occurs when the change command is generated, the error processing unit reattempts the change command within a predetermined time period according to the predetermined process associated with the error, and displays a result of the reattempt on the screen.

9. The terminal of claim 1 , wherein the error determination unit determines that an error associated with a conflict among supplementary services occurs if the change command is associated with a change of a second supplementary service to be activated, and the second supplementary service conflicts with a first supplementary service which is activated, and

the error processing unit displays a message on the screen, the message requesting a selection of the first supplementary service or the second supplementary service.

10. The terminal of claim 9 , wherein if the second supplementary service is selected, the error processing unit changes activation information included in state information of the first supplementary service to be deactivated, and

the error processing unit changes activation information included in state information of the second supplementary service to be activated.

11. The terminal of claim 1 , wherein the error determination unit determines that an error associated with a unsupported network occurs if a change command associated with state information of a supplementary service unsupported by a network service provider occurs, and

the error processing unit displays an error message on the screen according to the predetermined process associated with the error.

12. A method for providing a supplementary service control menu on a terminal, comprising:

collecting state information associated with a supplementary service;

determining a level of the supplementary service using the collected state information;

generating an ID of the supplementary service;

building the supplementary service control menu;

displaying the built supplementary service control menu, including the supplementary service with an effect associated with the level, on a screen;

determining whether an error occurs if a change command of the state information is generated in the displayed supplementary service control menu; and

if the error occurs, processing the error according to a predetermined process associated with the error, and

if the error does not occur, changing the state information based on the change command.

13. The method of claim 12 , further comprising:

determining whether a conflict among a plurality of activated supplementary services occurs; and

controlling a portion of the plurality of activated supplementary services to be deactivated if the conflict occurs.