| 主权项 |
1. A terminal device comprising:
a terminal operator configured to detect a current state of the terminal device and provide an event signal corresponding to the detected current state; and a service provider configured to, when at least one of a voice call origination attempt state and a voice call end state is detected through the event signal, provide a pre-registered additional content corresponding to a voice call, and wherein the service provider stops providing the additional content by switching an active state to an inactive state, when a voice call connection state is detected through the event signal after the voice call origination attempt state or an attempt of the voice call by an originator is detected after a voice call connection, the terminal operator transmits the event signal to platform, the service provider receives the event signal from the platform, and when the service provider is in active state, the service provider acquires the event signal from the platform through continuous monitoring of the platform, and when the service provider is in inactive state, the service provider is switched to the active state and acquires the event signal, if the platform transmits the event signal corresponding to at least one state of the voice call origination attempt state and a voice call end state to the service provider. |
