hi all members i would like to deploy ex together with OCS so which version can be installed to work like that 2003 or 2007 thanks in advance

Hello,Exchange 2007 SP1 works better togather with OCS 2007...Introducing Unified Messaging in Office Communications Server 2007 environmenthttp://msexchangeteam.com/archive/2007/07/20/446505.aspxExchange 2007 SP1 Features with Communications Server 2007 and without Communications server 2007http://blogs.technet.com/jitreddy/archive/2009/02/18/exchange-2007-sp1-features-with-communications-server-2007-and-with-out-communications-server-2007.aspxAmit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

i mean can i deploy exchange 2003 together with OCS 2007?

Yes, you can implement with Exchange 2003 but it is limited to Presence information & Conferecing but Exchange 2007 UM features like voice mail, miss call notification etc.. won't be available.You can also use Outlook to make Communicator calls etc..Amit Tank | MVP - Exchange | MCITP:EMA MCSA:M | http://ExchangeShare.WordPress.com

Hi, We are unable to deploy Exchange 2003 together with OCS 2007. We must deploy Exchange 2007 SP1 together with OCS 2007. Configuring Unified Messaging and Office Communications Server 2007 http://technet.microsoft.com/en-us/library/bb676409.aspx Regards, Rock WangRock Wang MSFT