how we can integrate the CCM Version 5.0 (sip supported ccm ) with the sip supported microsoft office communicatior 5.0. kindly reply back with your valid suggestions and documents.
I think you need have the LCS server connected via the SIP trunk. But if you want all the fancy features like IP Phone state on / off hook, you need to have Cisco Presence Server. (then federate to the LCS)
