Call Handler for all lines

I am trying to set up a Call Handler that all forward-facing directory numbers will forward to.  So, no matter what number is called, they will be redirected to this Call Handler.  The purpose of the Call Handler is to inform callers that which days we are closed for the holidays, so it is not a permanent change.  Because of this, I want to do it as simply as possible with no major changes to the existing structure.

Here's what I have so far, a Call Handler with an alternate greeting on the extension 3199.  3199 is a DN that was created for this purpose and I can contact it from the phone at my desk (I hear the greeting that was recorded).  I created a Forwarded Routing Rule, set to Dialed Number equals 6* (I have also tried "In" 6000-6999 and "equals" 6934) and sent to the Call Handler/Go Directly to Greetings (status is active).  

When I try calling any number in that range, it does not forward the call to the Call Handler, it ignores it and rings on the phone as usual.  I have looked into CTI, but I do not know how to set it up to forward every DN in that range to 3199.  Is there something I'm missing?  Thanks.