To use this on{X} Recipe, simply copy the code below and modify if needed.

console.log('Started Script:' + device.currentSource);

if (!(device.version && device.version.isSupported(0, 54))) {
    var notification = device.notifications.createNotification('on{X} is out of date');
    notification.content = "the recipe '" + device.currentSource + "' requires an up to date on{X} application.";
    notification.show();
}
else {
    device.telephony.on('outgoingCall', function (signal) 
        {
device.scheduler.removeTimer("turnOffBluetooth");
        device.bluetooth.enabled = (state == 'true');
        }
    );
    device.telephony.on('incomingCall', function (signal) 
        {
device.scheduler.removeTimer("turnOffBluetooth");
        device.bluetooth.enabled = (state == 'true');
        }
    );
    device.telephony.on('idle', function (signal) 
        {
            var now = new Date();
            device.scheduler.setTimer({
                  name: "turnOffBluetooth", 
                  time: now.getTime() + 60000,
                  exact: false },
                  function () {
                      device.bluetooth.enabled = (state == 'false');
                  });
        }
    );
}

console.log('Completed Script:' + device.currentSource);