function CEL_OnDataConnectionStatusChanged(Source, EventID, newStatus, varargin)

try
    % Informing about Data connection status changes.
    if (newStatus == 0)
        disp 'Data Connection status is Up';
    else
        disp 'Data Connection status is Down';
    end
catch
    CEL_ShutDown;
    disp('An error occurred in CEL_OnDataConnectionStatusChanged.m file.');
end