I was working with a customer to get them federated with Microsoft and the question came up - would they need Subject Alternate Name or SAN entries on their external cert? You need to understand the three types of Federation you can setup with OCS...

OCS 2007 R2 shipped late last year, about a year after OCS 2007. OCS 2007 was the first version to incorporate significant telephony capabilities - placing and receiving calls from the PSTN and integrating with a companies existing PBX systems. R2...

It's all Unified! I'm talking about Unified Communications - the ability for email/voice/instant messaging and conferencing to all integrate seamlessly, glued together by presence and the desires of end users on how they want to communicate. It's very...