- Unified Communications integrates various communication methods like IP telephony, web conferencing, unified messaging, video, presence, instant messaging and fax into a single solution accessible across all devices and Microsoft applications. - Key trends driving adoption include mobility, flexible workforces, and the preferences of younger generations for tools like instant messaging and social networking. - Microsoft Unified Communications provides solutions for scenarios like e-mail and calendaring, security and compliance, and conferencing. Products include Lync, Live Meeting video conferencing, and OCS. - Benefits cited include reduced overload from constant connectivity, easier connection to colleagues, and organizational cohesion from consistent communication across locations.