How to get Directory Number Settings -> Call Search Space with AXL?

Version 1
    This document was generated from CDN thread

    Created by: Juerg Ott on 02-07-2013 11:27:02 AM

    i need to modify the Calling Search Space for a SIP Line.

    In ccmadmin i can go to Device -> Phone -> select the Phone -> select the line 
    then under Directory Number Settings i see the Calling Search Space.

    but how can i get and set this with AXL?

    thanks for any Help!