Force send NI message

Hi,

I have 4 XBee sensor (L/T/H) and when I press the reset button the sensor sends a NI message to the coordinator.

Now I attached a Xbee to the Arduino and want to send the NI to the coordinator too. What is the command? Why the NI is not sent by default when the Xbee is powered?

Regards

That is determined by the Join notification command as well as the CB command.