Magouero,
You can get the device ID through an HTTP REST request to the API on the device:
http://127.0.0.1/api/system/deviceId
You will get a JSON collection back that looks like:
{
“code” : 200,
“result” : “18587503″,
“status” : “success”
}
The Multitech MTR product has an API that is very similar, and is documented at:
http://www.multitech.net/developer/software/mtr-api-reference/
Jeff