Try to call to the device's number. If this works, you will hear a ringing tone or busy signal instead of the "subscriber not available" signal. If you are sure that the device is online, you need to look for other possible problems. One possibility is that the phone number from which you send a message is unauthorised and therefore you will not receive any messages and no action will be carried out. If you have arrived at your destination and discover that the device is plugged in and powered up, but there is still no response, please
before unplugging it check the status of the indicators on the unit and remember the pattern in which they light up or blink. It would be a good idea to record a short video on mobile phone. Then,
before unplugging it please check
how the unit responds to a hidden button. The button is positioned on the front panel of the device, next to the logo. Press this button with a suitably thin object for one to three seconds and release, and see if the status of the output relay has changed. Check if you can hear a "click" from the relay and that you can see that the "Out" indicator has changed. Then try to reset the device to default without unplugging it from the power source. See the
User Manual for the reset procedure for your device. Finally, take the unit from the wall socket and observe the behaviour of the indicators. It would be a good idea to record a video for this last step too. All the above information would be very useful for further investigation. Please
contact our technical support for assistance.