The -v is normally not necessary to run Geronimo, but it's included here to send the log output to the terminal window so you can see what's happening.

Terminal based on TETRA digital trunking mobile communication system could send and receive status and short data service message, and achieve navigation and location through short data service.

Using code already in the framework, you can send diagnostic messages to a file, to the system logger, or to a debugging terminal.