Hi,
I had Lync 2013 and Exchange 2010 running fine , Recently I migrated all mailboxes to Exchange 2013 and still auto attendant is working fine and user can receive calls on their extensions but not voice mail , so i have question should i move system mailbox"{e0dc1c29-89c3-4034-b678-e6c29d823ed9" to Exchange 2013. ?
UM Is already configured on Exchange 2013 with wild card certificate.
Regards
Usman Ghani
Usman Ghani - MCITP Exchange 2010