The Teltonika RUT955 is a wireless router with HSPA+/LTE technology and implemented 802.11n Wi-Fi, along with a built-in VPN server. Its built-in HSPA+/LTE module and two SIM card slots ensure a stable internet connection anywhere with speeds up to 100 Mb/s (downlink) and 50 Mb/s (uplink).

With SMS management functionality, users can perform tasks such as device reboot, connection status check, and connection establishment. The failover feature not only ensures uninterrupted connectivity if one SIM card is disconnected but also helps reduce costs by enabling failover roaming, which switches the connection to the second SIM card if the first one registers on a roaming network, and vice versa. Switching between SIM1 and SIM2 can also be based on the amount of data downloaded periodically (per day, week, or month) and signal strength level.

The RUT955 features RS232 and RS485 serial ports as well as a physical WAN Ethernet port for connecting to a broadband wired connection. The device supports various connection types, including PPPoE, static IP, dynamic IP (DHCP client), IPSec, OpenVPN, GRE Tunnel, PPTP, and L2TP.

Configuration, backup, and restoration of router settings are done via a web interface using a web browser. The router can also be managed via SMS, which is useful when initiating VPN connections or restarting the router is not possible. Additionally, the RUT955 allows for sending and receiving SMS text messages to and from one or multiple GSM users.

The device is equipped with a GPS module.