airport-modem allows you to monitor the state of the internal modem of your base station and to start/stop the modem connection.
On the AirPort Extreme base station, the modem utility can also display the approximate duration of the modem connection.
airport-modem accepts no command-line options. airport-modem is a wrapper script around the AirportBaseStationHangup.jar jar file located in /usr/share/java/airport-utils.
You can set the JAVACMD environment variable to use a specific JVM instead of the one chosen by the wrapper script. Set the DEBUG environment variable to 1 to get the debug output from the wrapper script.
Set this variable to 1 to get the debug output from the wrapper
The full path to the Java Virtual Machine to use. By default, the
wrapper uses JAVACMD; if it is not set, it looks for
JAVA_BINDIR/java, then for JAVA_HOME/bin/java before
looking for a java executable in the PATH. In the latter case,
the JVM used can be configured using the Debian alternatives system
The full path where your JDK/JRE is installed.
The full path to the directory where the java executable is located.
Extra command-line arguments to be passed to the Java Virtual Machine.