mallgood

I was looking into the features offered by the short codes and came across one that I found interesting.
Its the "DisplayMsg" feature. I looked in the help files and all I get is:

Allows the sending of special functions to DS port display phone extensions. The telephone number takes the format xxxx;[0)nnn/ppppppp where:

xxx is the target extension.
Nnn is the Definity feature number.
Ppppppp is the parameter data (if required).

The thing is there is no description of what "NNN" is supposed to be. It looks like its a kick over to the definity systems. I have *no* experience with definity, so I was wondering if anyone could clarify?
I'm just looking at features and whats possible.. and was curious.

Thanks
Mallgood