openthegate: Thanks for the response, however, I think you misunderstood the question.
What I need is the ability to determine in what capacity is a specified digit string used.
In the Avaya, the list usage command returns the "element" associated with a digits submitted. It would return a result showing if it were a DN, a vector, a VDN etc.
Let me be more to the point. I'd like to know if there's a feature in the CS1000 that can cross-references numbers (an extension number perhaps). Lets say extension 1234, I'd like to find out if it is possible to find out if another extension is call forwarded to extension 1234 - without placing an enhanced trace on 1234.
Does that clear it up somewhat?