@Override
  public void onCreate() {
    // Set application context
    AndroidFactory.setApplicationContext(getApplicationContext());

    // Instantiate the settings manager
    RcsSettings.createInstance(getApplicationContext());

    // Set the logger properties
    Logger.activationFlag = RcsSettings.getInstance().isTraceActivated();
    Logger.traceLevel = RcsSettings.getInstance().getTraceLevel();

    // Set the terminal version
    TerminalInfo.setProductVersion(AppUtils.getApplicationVersion(this));

    // Start the core
    startCore();
  }
  /** Start core */
  public synchronized void startCore() {
    if (Core.getInstance() != null) {
      // Already started
      return;
    }

    try {
      if (logger.isActivated()) {
        logger.debug("Start RCS core service");
      }

      // Send service intent
      Intent intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_STARTING);
      getApplicationContext().sendBroadcast(intent);

      // Terminal version
      if (logger.isActivated()) {
        logger.info("RCS stack release is " + TerminalInfo.getProductVersion());
      }

      // Instantiate the contacts manager
      ContactsManager.createInstance(getApplicationContext());

      // Instantiate the rich messaging history
      RichMessaging.createInstance(getApplicationContext());

      // Instantiate the rich call history
      RichCall.createInstance(getApplicationContext());

      // Instantiate the IP call history
      IPCall.createInstance(getApplicationContext());

      // Create the core
      Core.createCore(this);

      // Start the core
      Core.getInstance().startCore();

      // Create multimedia directory on sdcard
      FileFactory.createDirectory(RcsSettings.getInstance().getPhotoRootDirectory());
      FileFactory.createDirectory(RcsSettings.getInstance().getVideoRootDirectory());
      FileFactory.createDirectory(RcsSettings.getInstance().getFileRootDirectory());

      // Init CPU manager
      cpuManager.init();

      // Register account changed event receiver
      if (accountChangedReceiver == null) {
        accountChangedReceiver = new AccountChangedReceiver();

        // Register account changed broadcast receiver after a timeout of 2s (This is not done
        // immediately, as we do not want to catch
        // the removal of the account (creating and removing accounts is done asynchronously). We
        // can reasonably assume that no
        // RCS account deletion will be done by user during this amount of time, as he just started
        // his service.
        Handler handler = new Handler();
        handler.postDelayed(
            new Runnable() {
              public void run() {
                registerReceiver(
                    accountChangedReceiver,
                    new IntentFilter("android.accounts.LOGIN_ACCOUNTS_CHANGED"));
              }
            },
            2000);
      }

      // Register SMS receiver for network initiated configuration

      if (reconfSMSReceiver == null) {
        reconfSMSReceiver = new HttpsProvisioningSMS(this);
        reconfSMSReceiver.registerSmsProvisioningReceiver(
            Integer.toString(HttpsProvisioningUtils.DEFAULT_SMS_PORT), null, null, null);
      }

      // Show a first notification
      addRcsServiceNotification(false, getString(R.string.rcs_core_loaded));

      // Update GSMA client API
      GsmaUtils.setClientActivationState(getApplicationContext(), true);

      // Send service intent
      intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_STARTED);
      getApplicationContext().sendBroadcast(intent);

      if (logger.isActivated()) {
        logger.info("RCS core service started with success");
      }
    } catch (Exception e) {
      // Unexpected error
      if (logger.isActivated()) {
        logger.error("Can't instanciate the RCS core service", e);
      }

      // Send service intent
      Intent intent = new Intent(ClientApiIntents.SERVICE_STATUS);
      intent.putExtra("status", ClientApiIntents.SERVICE_STATUS_FAILED);
      getApplicationContext().sendBroadcast(intent);

      // Show error in notification bar
      addRcsServiceNotification(false, getString(R.string.rcs_core_failed));

      // Exit service
      stopSelf();
    }
  }