[jitsi-users] [LDAP] jitsi search - LDAP username



I'm trying to configure jitsi for LDAP user search. My LDAP catalog is ActiveDirectory. I've added Contact source and search is working OK. I can find any user I want using CustomQuery.
But when I try to add this user to Jitsi user list, I can see only phone number or email address. On my XMPP server, my users name are UPN users, or rather sAMAccountName@domain name.
How can I make Jitsi to display this name as contact name for the users from my LDAP?