When you are also giving your node number away as well!
If it needs a callsign change but the node number is staying the same as it is right now then you can visit:
http://www.irlp.net/owners/dbupdates.html
that will get you going changing the callsign. Next you need to edit the “environment” file on your node.
su -
cd /home/irlp/custom
pico -w environment
Find your callsign and change it to the appropriate callsign then use the following command to restart the node
/home/irlp/custom/rc.irlp