change off-pbx-telephone configuration-set

[ddog6601]

Hi
How would I tell if a off-pbx-telephone configuration-set is being used or not ? (I am using ASA 6.0 ) For example is I use the command display off-pbx-telephone configuration-set 1 it displays the set but the field "Configuration set Description " is not named so one would think it might not be used but I know this one is used by our XMobile phones for EC500. What I am trying to avoid is going into a in use configuration-set and modifying it and messing something else up that may be using it. So the question I am asking,is there a way to tell if anything is pointed to a off-pbx-telephone configuration-set ?
Thank you in advance for any help on this !

 

[fataldata]

list off-pbx-telephone station-mapping

 

[ddog6601]

The off-pbx-telephone station-mapping is empty as of right now. That is what I will be adding to after I know what off-pbx-telephone configuration-set I can modify ? Right now all XMobile Type: EC500 users are using configuration set 1. But when you display off-pbx-telephone configuration-set 1 it is not named in the "Configuration set Description " field. No mater which config set I display they all seem to be the same. I just do not want to make a change to a config set that might be used somewhere.