Topic Last Modified: 2011-05-12

The following table summarizes the minimum software and hardware requirements for Microsoft Lync 2010 Attendant.

System Requirements for Lync Server 2010 Attendant

System component Minimum requirement

Display resolution

Required: Super VGA 1024 x 768

Recommended: Super VGA 1280 x 1024 or higher

Operating system

Windows 7 operating system

Windows Vista operating system

Windows XP operating system with Service Pack 3 (SP3)


Intel Pentium 4, AMD Athlon 64, or equivalent

Data and voice: 1 gigahertz (GHz) or larger processor; support for 32-bit and 64-bit

Microsoft RoundTable conferencing device: 2 GHz processor or higher


Windows 7 or Windows Vista: 2 gigabytes (GB) of RAM

Windows XP: 1 GB of RAM

Installation space

At least 100 megabytes (MB) free

Video memory

Microsoft DirectX 9-capable display adapter, ATI Radeon X300, or NVIDIA GeForce 5600 class equivalent or better with 256 MB of video memory


Microphone and speakers, headset with microphone, or equivalent device

Recommended: Microsoft unified communications (UC) device or a phone running Microsoft Lync 2010 Phone Edition

Bandwidth requirements

Voice: 50 kilobits per second (Kbps) (minimum); 80 Kbps (high-quality)

The RoundTable device (audio): 50 Kbps (minimum); 350 Kbps (high-quality)

The required and recommended bandwidth speeds are cumulative. For example, if you want to use voice and the RoundTable device, the minimum bandwidth would be 50+50=100 Kbps.

Other requirements

Microsoft Outlook 2010 messaging and collaboration client and Microsoft Exchange Server 2010 (required for the full set of new Outlook integration features)

For details, see Lync 2010 Compatibility.

Microsoft .NET Framework 3.5 (or later) (must be installed on your computer before you install Lync 2010 Attendant)

To download Microsoft .NET Framework 3.5, see