Lync Server 2010 ExUMRouting Enhancements

In W12/W13 ExUMRouting will route a call to voice mail to all the UM servers that support a given UM dial plan in a round robin fashion. When upgrading from Exchange 2007 SP2 UM to Exchange 2010 this is an issue, because an Exchange 2007 SP2 UM Server can’t communicate with an Exchange 2010 mailbox…