More detail around Sametime 7.5 integration...
The two giants showed off at this week's VoiceCon conference in Orlando, Fla., a customized plug-in for Sametime 7.5 that will integrate the platform with Cisco's Unified CallManager and Unified Presence Server. The integration is based around the Session Initiation Protocol (SIP) and SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE).The article incorrectly states that Sametime 7.5 ships next year -- it's a mid-2006 deliverable.
Cisco made a similar announcement Monday with Microsoft to support CallManager on the Microsoft Live Communications Server and Office Communicator client.
At any rate, here's an example of an ISV building their product for both IBM and the other guys simultaneously -- I often hear that there is a perception that the other guys get everybody first.
What's cool(er) about the Sametime integration is the click-to-call stuff in e-meetings...it's not just about person-to-person chat/VoIP.
Link: Network World: VoiceCon: Cisco, IBM demonstrate telephony integration >