Lync Server provides a user experience that is familiar to users of traditional audio bridge services including PSTN dial-in services with touch-tone call control commands. At the same time, it incorporates powerful scheduling, joining, and management features available only with an integrated unified communications platform.

With a single click, users can schedule a meeting from Outlook. Details, such as meeting time, location, and attendees, follow the familiar Outlook template. Additionally, conference call-specific information, such as dial-in number, meeting IDs, and personal identification number (PIN) reminders, are automatically populated.

To help ensure that only the authorized people participate in a call, Lync Server provides multiple levels of authentication for participants. Users who join by using Lync 2010 are already authenticated by the Active Directory Domain Services and do not need to enter a PIN, pass code, or meeting ID.

Non-PC users have several methods of joining a Lync Server 2010-based conference call. A PSTN user can dial an access number, access the meeting bridge, and then enter the meeting ID. For more secure meetings, the user can also be required to enter his or her PIN to authenticate against Active Directory. Lync Server 2010 also supports Lync Phone Edition devices, which are stand-alone IP phone devices provided by Microsoft partners.

Lync 2010 simplifies the video conferencing user experience by incorporating video into the unified client so that scheduling a meeting with video or escalating to video spontaneously is seamless and easy

Lync Server makes it easy to add video to a standard phone call in just one click. When there are multiple participants in a video call or a conference, the active speaker is displayed in the video window.

High-definition video (resolution 1270 x 720; aspect ratio 16:9) and VGA video (resolution 640 x 480; aspect ratio 4:3) are supported for peer-to-peer calls between users running Lync 2010 on high-end computers. The resolution viewed by each participant in a single conversation may differ, depending on the video capabilities of each user’s respective hardware.

IT administrators can set policies to restrict or disable high-definition or VGA video on clients, depending on computer capability, network bandwidth, and the presence of a camera able to deliver the required resolution. These policies are enforced through in-band provisioning.

Lync Server 2010 integraties traditional application and document sharing into the streamlined Lync 2010 client. Combined with audio or video conferencing, the result is a highly immersive and collaborative session that is simple to facilitate.

Desktop sharing enables presenters to broadcast any visuals, applications, webpages, documents, software, or part of their desktops to remote participants in real time, right from Lync 2010. Audience members can follow along with mouse movements and keyboard input. Presenters can choose to share the entire screen or only a portion. By sharing their desktops, presenters are able to engage with their audiences in interactive product or software demos from any location.

Application sharing enables presenters to share control of software on their desktops without losing sight of participant feedback or text questions. Presenters can also delegate control of the application to meeting participants.