Today, Symbsoft SymbRecorder is considered "abandonware" as the Symbian ecosystem has been defunct for years. Users looking for this specific version typically find it on archival sites or legacy mobile forums. The .zip format usually contains the installation file along with instructions or "patches" needed to make the software work on newer Belle devices where security was tighter.
This tool was highly regarded during the Symbian era for its efficiency and "beep-free" recording capabilities. Multi-Platform Support
Set a start and end time. Place the phone in a room, and it would record a lecture or meeting automatically. You could even set recurring daily schedules.