In our Single Domain, Single Forest environment spread over three countries and running over MPLS WAN links, one of our offices has deployed LCS 2005 and the other one recently deployes OCS 2007 R2.
The AD shcema was prepared in such a that both the LCS & OCS remained functional.
How can we make the user's of both, talk to / communicate with each other? In the near term, we want all the users be shifted over to OCS though but that needs a bit of planning for internal PKI and placement of servers in the their own pools, but till then, I was wondering if there is a temporary solution???