asterisk users - Oct 2004 - grandstream bt-486 can only dial with #

I have a grandstream BT-486 in the lab running 1.0.5.11 firmware.

For the past three days I've had no trouble dialing out without hitting #. 
I had the setting for using # as dial key to "no" in the config.

Today the BT wouldn't pass outgoing calls.  I turned on # as dial key and it
works now if I hit # at the end.  I have changed nothing on the BT-486 and 
nothing on the * box it is connected to.

Anybody seen this happen before?