private void loadStates() {
   boolean b = enableDefaultEncryption.isSelected();
   cboSavpOption.setEnabled(b);
   this.encryptionProtocolPreferences.setEnabled(b);
   enableSipZrtpAttribute.setEnabled(
       b && this.encryptionConfigurationTableModel.isEnabledLabel("ZRTP"));
   tabCiphers.setEnabled(b && this.encryptionConfigurationTableModel.isEnabledLabel("SDES"));
 }