Getting access to Nokia documentation on their HW/SW is fucking asinine. I bet they're violating GPL somehow... no mention of used software AT ALL. You really want me to believe you're not using any kind of open source software when the product page claims it supports running Linux Containers (LXC) ????
https://www.winncom.com/pdf/Nokia_Beacon_3/Nokia_Beacon_3.1_DS.pdf
Router mode
Support for Linux containers (LXC) and TR-157
HUH???