Cisco Tech Note:
http://www.cisco.com/en/US/products/sw/voicesw/ps5520/products_tech_note...
Simply create a single new ephone-dn like
ephone-dn 71
number 32..
description ** Transfer Direct to Voicemail
call-forward all 600
Then Config the E-164 number in CUE to match for each user ie 3201, 3202 etc then any user can transfer direct to VM by dialing 32xx
