Polycom RealPresence Group Series Reference Manual page 204

System Commands
Exporting a directory on one system model and importing the directory on another model is not supported.
Attempts to export and import directory information between different systems might also fail. The message
importdirectory failed indicates that the system was not able to import the information.
When importing directory data back into the system, use the data in its entirety (not edited in any form).
There is information that is used by the system to determine what type (XML or CSV) of data is being
imported.
See Also
See the importdirectory command.
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