if (msg.isPureNack()) return;
if (msg.getByte("Cmd") == 0x60) {
// add the modem to the device list
InsteonAddress a = new InsteonAddress(msg.getAddress("IMAddress"));
String prodKey = "0x000045";
DeviceType dt = DeviceTypeLoader.s_instance().getDeviceType(prodKey);
if (dt == null) {
logger.error("unknown modem product key: {} for modem: {}.", prodKey, a);
} else {
m_device = InsteonDevice.s_makeDevice(dt);
m_device.setAddress(a);