Help Centre | Knowledge Base

Recent Articles
SIM Card Replacement Procedure
The Teltonika backup modem provides stores with internet connectivity in the event their main internet service is interrupted. Use the steps below for the process on replacing the SIM card used with the backup modem. Equipment needed - SIM eject ...
641M - SMS Via AT Commands
This document contains information regarding the configuration and use of SMS Control, i.e., to be able to send an SMS to a mobile device using AT command Etither via IP (Ethernet) or COM (Serial).
641M-4 Firmware
Fimrware for the 641M-4 Please check current version in the module is V3.X.X If this is different please contact Elpro Support support@elprotech.com
641M-2 Firmware
Fimrware for the 641M-2 Please check current version in the module is V1.X.X If this is different please contact Elpro Support support@elprotech.com
Firmware
Current Version is V3.2.307

Popular Articles
Elpro USB Drivers
Elpro general USB driver Installer. 215, 415, 925 modules
245U & 945U-E - V2.33 Firmware upgrade to rectify TLS/SSL webpage incompatability issue.
In late February 2022 Google Chrome, and Firefox and subsequently any browsers that uses the Chrome engine updated their browsers to require TLS/SSL v1.2 or newer for HTTPS connections to web pages. If the device serving the web pages security was ...
245U & 945U-E - V2.33 Firmware upgrade to rectify TLS/SSL webpage incompatability issue.
245U & 945U-E - V2.33 Firmware upgrade to rectify TLS/SSL webpage incompatability issue. In late February 2022 Google Chrome, and Firefox and subsequently any browsers that uses the Chrome engine updated their browsers to require TLS/SSL v1.2 or ...
645M-4 OpenVPN Routed
645M-4 OpenVPN Routed LAN to LAN communication The following application note demonstrates the configuration of the ELPRO 645M-4 cellular modem in a Routed OpenVPN Server and Client configuration. OpenVPN is an open sourced commercial software that ...
Over the Air Configuration for 915U-2
The 915U-2 modules communicate using Standard Ethernet Protocols which makes it possible to connect to other 915U-2 module within the radio network for over the air diagnostics or configuration changes. This instruction shows how this can be setup.

Knowledge Base