Hello Hristo,
Good day. Thank you for your question.
Please find the answers below to your questions:
1) However, could not figure out how to get the camera's recording. When I insert the sim in the reader, it does have a directory named 'blocks' and the software does not find any files.
The camera's recording can be found in the SD card of the Dual Cam.
2) Do the cameras record continuously once powered on and only send the video/photo when triggered/requested, or there is a command to tell the cameras to start recording?
It can be based on the trigger by a parameter or by command. Please refer to this link for more information on the camera scenario settings - https://wiki.teltonika-gps.com/view/Teltonika_DualCam#Camera_Scenario_Settings
3) Where can I find the download link to the file transfer server *.exe in order to tell the cameras where to ship the files?
Please contact your sales manager for this information as we do not share any documents on Crowd Support. If you don't have any contacts with our sales managers, please contact them on our official website https://teltonika-gps.com/ and click on the "Contact Us" button. When you will click, please fill the form and submit it.
Note: as a topic, please choose "Vehicle telematics" or you can send an e-mail with the description of your situation to info@teltonika.lt
Please go through this and let me know if you need further clarification on this.
Kind regards.