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  <min_length_for_ext_prex>    Minimum length (before conversion) when external 
prex should be added. 
  <exact_length_for_no_ext_prex>  Exact length (before conversion) were no external 
prex should be added. 
  <number_prex_for_no_ext_prex>  Number prex (before conversion) when no 
external prex should be added.
  <display_name>  %cn  Attribute that should be shown in the LDAP phone 
book. 
  <sort_results>  true  Sort LDAP search results. 
Export conguration
 Select Settings > Management. 
  Click on the Export button under Conguration. 
The conguration le is shown in the web browser.
  Choose to save the page as an xml le. 
The xml le is as default saved in your folder for downloaded les. The default name is 
“ot4135-<MAC>.xml” (the MAC address of the unit). 
  If necessary, edit the xml le in a suitable editor. 
Import conguration
  Click on the Browse… button under Conguration. 
  Select the xml le and choose to open it. 
  Click on the Import button. 
MANAGEMENT – UPGRADE AND CONFIGURATION