For example, duplicate vdn 2010 start 3001 count 8. [start nnnn] is an optional parameter that you can use to specify the number from which to start the number sequence for the duplicate VDN. If you do not specify a start number, the first available VDN after the master VDN is selected automatically. Only one VDN is selected. [count xx] is also an optional parameter. If you do not specify a start number, the first available VDN after the master VDN is selected automatically. Only one VDN is selected.