You can do this now through the api.
{'interface': 'Cellular', 'status': 'Ready', 'ip': 'xxx.xxx.xxx.xxx', 'provider': 'xxx', 'model': 'xxxx', 'signal': 'csq 21,99', 'connectionType': '4G'}
Sorry forgot to include the API call
GET /networks/[networkId]/devices/[serial]/uplink