A standalone voice logger is a device that is designed to record and store audio data from one or more communication channels, such as phone lines, radios, or microphones, independently of any other computer or server. Unlike other types of voice loggers that require a connection to a computer or a network, standalone voice loggers can function as a self-contained unit. They typically include their own storage device, processor, and operating system, allowing them to operate independently of any other hardware or software.