i have to upgrade a 4.2.1 unity version to 5.x, so i need to purchase:
-- The Unity, UM or VM version update to Release 5.X.
-- The Unity, UM or VM version update to Release 5.X 33-96 session.
--And the UM / VM version update to Release 5.X - Users.
So need to know how many users have the 4.2.1 system licensed now.
When i go to the licensing information of the Unity, i view Suscriber mailboxes and Unified messages suscriber.
My question is i am just to purchase vm update license as many as suscriber mailboxes, UM update license as many as Unified messages suscriber, to update the system.
Thank you for your help.
You might find this document helpful - http://www.cisco.com/en/US/customer/docs/voice_ip_comm/unity/white/paper/cuumvme.html