Office Communications Server
Office Communications Server is Microsoft's on-premises real-time communications server. Version 2007 R2 offers instant messaging, presence, web conferencing, audio and video conferencing and telephony solutions, adding chat rooms, interactive voice response and a conferencing auto-attendant. Microsoft's documentation states that Office Communications Server 2007 and 2007 R2 reached end of support on January 9, 2018.
Office Communications Server is a Microsoft product filed under Video Conferencing Software. Lifecycle: versioned, 2 versions listed, latest 2007 R2 (28 Sep 2009).
Source: Welcome to Microsoft Office Communications Server 2007 R2 | Microsoft Learn, retrieved 15 Oct 2026
Releases and Lifecycle
All Microsoft productsRelease and support dates as published by Microsoft; dates within the next 12 months are highlighted, past dates dimmed. Retrieved 2026-10-13.
Office Communications Server 2 versions
Lifecycle Policy
- Fixed Lifecycle Policy. Products with a defined support timeline at launch: a minimum of five years of Mainstream Support, then a period of Extended Support for some products, with service pack levels required for eligibility. [1]
Sources 3
- Fixed Lifecycle Policy retrieved 2026-10-13
- Microsoft Office Communications Server 2007 R2 lifecycle retrieved 2026-10-13
- Microsoft Office Communications Server 2007 lifecycle retrieved 2026-10-13