Cisco and Microsoft are competitors in the unified communications space, with very different visions and product approaches. As part of both companies’ commitments to customers and shareholders, Microsoft and Cisco recently published a joint statement of interoperability for products in unified communications, specifically addressing how Microsoft Office Communications Server and Cisco Unified Communications Manager work together across three different deployment scenarios, and what each company supports. You can download that statement on Microsoft site and the same document from Cisco site. “To Microsoft, that means we want to offer customers software that runs great on Cisco networks. With Office Communications Server’s support for Cisco ISR platform, great support for DSCP packet marking to deliver QoS, VLAN tagging, and many more technologies, we’re delivering a lot of capabilities so customers can get most out of their Cisco network investments.”