No, the licenses migrate with the server upgrade.
Hi Ace ,
Ip user in Mivoice business = UCC Basic in Micollab?
Correct...
UCC Basic - MiVB IP User license and MiCollab Basic
UCC Entry - MiVB MDUG license, NuPoint w/Call Director, standard or advanced UM, MiCollab desktop or web client (Entry features only)
UCC Standard - UCC Entry plus AWC, Teleworker, Mobile Client, desktop or mobile softphone
UCC Premium - UCC Standard plus 3 Teleworker license, MiCollab Mobile with Vidyo and CRM plugins, MiTeam
Screenshot taken from MiCollab embedded help "UCC License Bundle Definitions"