Microsoft and Cisco have agreed to make their unified communications platforms interoperable, in order not to slow down market growth ‘ even as both giants place massive bets on the convergence of multiple forms of communication and messaging over wired and wireless networks. Control of UC ‘ and whether this is application or network oriented ‘ are key issues that will help decide on the extent of the company’s respective influence over the large enterprise accounts that are their lifeblood. Microsoft will release the commercial version of its core product, Office Communications Server 2007, on October 16, along with the Office Communicator client, an on-screen messaging service, and the next edition of the Live Meeting conferencing product. Motorola has launched…