--- /dev/null
+#!/usr/bin/python
+
+import dbus
+import sys
+
+bus = dbus.SystemBus()
+
+if len(sys.argv) == 2:
+ path = sys.argv[1]
+else:
+ manager = dbus.Interface(bus.get_object('org.ofono', '/'),
+ 'org.ofono.Manager')
+ modems = manager.GetModems()
+ path = modems[0][0]
+
+print "Locking and disconnecting modem %s..." % path
+modem = dbus.Interface(bus.get_object('org.ofono', path),
+ 'org.ofono.Modem')
+
+modem.SetProperty("Lockdown", dbus.Boolean(1))
+
+print "press ENTER to unlock the modem %s" % path
+sys.stdin.readline()
+
+modem.SetProperty("Lockdown", dbus.Boolean(0))