What causes the error "OSX Admin has disabled the WWAN" on TC56

During testing, I moved a SIM chip from my TC75 to a TC56.  Then when I tried to dial a phone number on the TC56, I received the following error message:

"OSX Admin has disabled the WWAN"

Does anyone know the cause of this error message?  Is there a solution for it?

The SIM chip works fine when I move it back to the TC75.