assertEquals(PolycomIntercomDefaults.DEFAULT_RING_CLASS, m_noItercomDefaults .getAlertInfoClass());
    public void testGetAlertInfoClass() {        assertEquals(PolycomIntercomDefaults.DEFAULT_RING_CLASS, m_noItercomDefaults                .getAlertInfoClass());        Intercom intercom = new Intercom();        intercom.setEnabled(true);        PolycomIntercomDefaults defaults = new PolycomIntercomDefaultsDummy(intercom);        intercom.setTimeout(0);        assertEquals(PolycomIntercomDefaults.AUTO_ANSWER_RING_CLASS, defaults.getAlertInfoClass());        intercom.setTimeout(1000);        assertEquals(PolycomIntercomDefaults.RING_ANSWER_RING_CLASS, defaults.getAlertInfoClass());    }