if(-e "/var/lib/asterisk/sounds/currentconditions.ulaw") {
        unlink("/var/lib/asterisk/sounds/currentconditions.ulaw");
}
if(-e "/var/lib/asterisk/sounds/planets.ulaw") {
        unlink("/var/lib/asterisk/sounds/planets.ulaw");
}
if(-e "/var/lib/asterisk/sounds/forecast.ulaw") {
        unlink("/var/lib/asterisk/sounds/forecast.ulaw");
}