Our RUT955, RUTX09, RUTX11, and RUTX12 is supporting GNSS Functionalities. For the NTRIP support, the said devices support the NTRIP client functionality.
For more information you may refer to the links below:
RUTX11 GPS - Teltonika Networks Wiki (teltonika-networks.com)
RUTX11 USB Tools - Teltonika Networks Wiki (teltonika-networks.com)
For your question what is Geofencing?
Geofencing is a technology that defines a virtual boundary around a real-world geographical area. In doing so, a radius of interest is established that can trigger an action in a geo-enabled phone or another portable electronic device.
The NTRIP protocol (Networked Transport of RTCM via Internet Protocol) enables the mobile RTK GPS receiver (rover) to access data from the RTK base station over the internet to achieve 1cm accuracy.
I hope it helps