I am having trouble with using ddns with my 3cx for android. When I use my dynamic ip address (xx.xx.xx.xx) everything works perfectly. Changing it to my ddns name (goldstar.xx.com) the android registers and receives calls, but does not make calls. It just goes back to 'available' when I attempt to call out. I also do not see anything in the 3cx log. Does this make any sense?