Microsoft Lync Server 2010 Plus user CAL through the Microsoft Open Government Program.

Microsoft Lync (formerly Office Communications Server) ushers in a new connected user experience transforming every communication into an interaction that is more collaborative, engaging, and accessible from anywhere. For IT, the benefits are equally powerful, with a highly secure and reliable system that works with existing tools and systems for easier management, lower cost of ownership, smoother deployment and migration, and greater choice and flexibility.

Microsoft Lync Server 2010 now delivers complete presence, instant messaging, conferencing and enterprise voice capabilities through a single, easy-to-use interface that is consistent across PC, browser, and mobile device. Administrators benefit from a single, consistent management infrastructure, new capabilities to increase availability, and interoperability with existing systems.

For Lync Server 2010, access to Enterprise voice workloads are licensed through the Lync Server 2010 Plus CAL. Enterprise voice capabilities previously available through the OCS Enterprise CAL are now only available through the Lync Server 2010 Plus CAL. Like the Enterprise CAL, the Plus CAL is an additive CAL, and can only be purchased once the Lync Server 2010 Standard CAL has been acquired.