Currently, you can send GSM signal data to your server. It is configured in Services -> GPS -> AVL -> TAVL Settings.
If you want to get GSM operator name to your server, I could recommend using MODBUS TCP Master and Data to Server feature to get GSM operators information to your server.
To do that, simply enable MODBUS TCP Slave in Services -> MODBUS -> MODBUS TCP Slave then configure MODBUS TCP Master and Data to Server feature.
More details can be found in our Wiki page: https://wiki.teltonika-networks.com/view/Monitoring_via_Modbus and https://wiki.teltonika-networks.com/view/RUTX11_Modbus
Regarding AVL/GPS protocol for RUTX11 it should be the same as for RUT955 as they both uses same GPS protocol.