在Symbian S60第三版中，按下红色的结束通话键，程序默认退出，当还想保持程序继续运行状态，可以在AppUi的HandleWsEventL函数中进行处理，以下代码来自ScreenShot。
// ————————————————————————–
// Starting from S60 3.x, pressing End key will terminate application.
// We don’t want this to happen in this application, so we have to handle
// End key event (KAknUidValueEndKeyCloseEvent).
// ————————————————————————–
void CXXXAppUi::HandleWsEventL(const TWsEvent &aEvent, CCoeControl *aDestination)
    {
    switch (aEvent.Type())
        {
        case KAknUidValueEndKeyCloseEvent:
            break;

        default:
            CAknAppUi::HandleWsEventL(aEvent, aDestination);
        }
    }