You must enable the Enable Device Adaptations option on the Global Settings page for performing the add, edit, duplicate, and delete operations on the Device Mappings page.
Procedure
On the System Manager web console, click Elements > Routing > Adaptations > Device Mappings.
On the Device Mappings page, select one or more device mappings that you want to remove.
On the Delete Confirmation page, verify the device mapping entries that you want to delete.
Click Delete.
Session Manager deletes the device mapping entries from the database.
