# Teltonika TRB142/RUT956 The **TRB142** is a small-formfactor device that only has a single RS232 port and not ethernet. It just connectes to the internet via mobile coverage. The **RUT956** uses the same software as the TRB142, but has many more advanced netowkring features and include ethernet ports and more antennas. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.dbnetsoft.com/remoteredirect/readme/hardware/teltonika-trb142-rut956.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.