Hello.
Nothing that comes to my mind, this device only have 3 network interfaces.
1. LTE
2. LAN Port
3. USB Port (Virtual LAN port).
Another option is to request the Factory File of those 1000+ devices, Such file is a file that sales managers tend to send to our clients once the shipping order is placed. Such file can be loaded in RMS and this will add all the devices contained in the that file.
In this case you will need to talk to your provider to retrieve the factory file of those specific devices. Just keep in mind that all sides involved need to be 100% sure that this Factory file contains the data corresponding only to those 1000+ devices provided to you, otherwise you will end with more devices than the ones you actually have.