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Skype for Business Server

Skype for Business Server
  • Donor or Provider: Microsoft
  • Platform: Windows
  • Format: Download
  • Product ID: LVS-48375
  • Title Group: Skype for Business Server
  • Availability: Available

More informations about this product


Skype for Business Server (formerly Lync Server) is a real-time communications server. It supports instant messaging (IM), presence information, web conferencing, and telephony, all through an office's existing communications infrastructure. Skype for Business Server's client applications are Lync Desktop and several others with which it is backward compatible.

This donation provides one server license. Each user or device that accesses Skype for Business Server must have a Standard client access license (CAL). Additive Enterprise CALs or Plus CALs are required to access certain features. See the Licensing section for additional information.

Which Versions of This Software Are Available?

You can choose to download the current version or the previous version of this software. You can find out which version is the current one in the Microsoft Title Groups document. In addition, you can download the software in any language that's available.

Benefits for Organizations

If you have network administration experience, you can use Skype for Business to

  • Manage all live communications among users within and outside of your organization
  • Connect users for sharing Office documents and IM and voice conversations
  • Request and launch meetings through Outlook or a web interface

Major Capabilities

  • Instant messaging: Users inside and outside of an organization can use IM over the Skype for Business desktop clients. They can also use a web-based interface to connect with most popular IM clients.
  • Telephony: Administrators can use Skype for Business Server to manage both voice over IP (VoIP) and traditional (PSTN) telephony. Skype for Business Server can work within your organization's existing telephone and PBX systems.
  • Office integration: You can use and distribute PowerPoint presentations within a web conference. Users can edit Office documents in real time locally or remotely. Skype for Business Server options also appear in the interfaces of Office applications.
  • Live audio and video conferencing: Skype for Business Server is compatible with Microsoft RoundTable or any device that supports Real-time Transport Protocol (RTP) or Real-time Transport Control Protocol (RTCP).
  • Encrypted communication: Transport Layer Security (TLS) and Secure Real-time Transport Protocol (SRTP) protect sensitive information without limiting software functionality and eliminate the need for remote users to establish virtual private network (VPN) connections.


Standard CALs are required for each user or device accessing Skype for Business Server. Additive CALs might be required depending on which Skype for Business Server features are used.

  • Standard CAL: For IM, presence, or PC-to-PC audio and video communications.
  • Enterprise CAL: For audio, video, and web conferencing; desktop sharing; room systems; and multiple HD video streams. Enterprise CALs can only be used in conjunction with Standard CALs.
  • Plus CAL: For enterprise telephony features. Plus CALs can only be used in conjunction with Standard CALs.

To enable all features, all three licenses (Standard, Enterprise, and Plus) are needed.

See the Guide to Microsoft Server Licensing for general licensing information.

Obtaining This Product

Installing this product requires you to download the software from the Microsoft Volume Licensing Service Center (VLSC) and enter a license key. You can download any available version or language for your product.

The license key allows you to install the product on as many computers as you have received licenses for. This quantity is specified in the email you receive from TechSoup after you request this product.

Expect two emails:

  1. When your donation request has been approved, TechSoup will send a message to your organization email address. This email will confirm the number of licenses you have requested and provide information about how to use the VLSC once Microsoft accepts your license agreement. Make sure the organization email that is registered with TechSoup is up-to-date. Visit My Member Profile and verify the address in your active organization profile.
  2. Microsoft will send an email welcoming your organization to the VLSC. This email will indicate that Microsoft has accepted your license agreement. After you receive this email, you'll be able to follow the steps in the first email you received from TechSoup to obtain your donation through the VLSC.

Software Assurance

Under the Software Assurance program, you have the right to install any new release of products covered in the agreement during the term of your coverage.

Rules, Eligibility and Restrictions

  • Quantity:
    • Organizations receive an allotment of Microsoft software donations that is reset every two years. An organization's two-year cycle begins with its first donation request after July 27, 2011. After two years, a new cycle begins, and a new allotment is available.
    • During its two-year cycle, an organization can request products from up to 10 title groups.
      • For title groups that contain applications that run on an individual computer (like a desktop or laptop PC) or for license-only title groups (like CALs), there is a 50-license maximum.
      • For server products, there is a five-product maximum, regardless of title group.
    • For further details, see Quantity and Frequency of Microsoft Requests on the Microsoft Donation Program — Eligibility and Allotments page.
  • Budget: Organizations with annual operating budgets of any size are eligible for products in this program.
  • Nonprofits and public libraries only:
    • This donation is available to nonprofits with 501(c)(3) designation and to public libraries. Public libraries must either have valid 501(c)(3) nonprofit status or be listed in the Institute of Museum and Library Services (IMLS) database.
    • Public libraries without a 501(c)(3) designation may request Microsoft software donations through this program only for use on public access computers or on computers that are used to directly manage either the public access computers or the library's public access program.
    • Microsoft reserves the right to grant or deny an organization's request at any time, for any reason.  
  • Eligible organization types: The Microsoft Donation Program serves nonprofit organizations whose missions benefit the local community. This could include organizations with the following missions:
    • Providing relief to the poor
    • Advancing education
    • Improving social welfare
    • Preserving culture
    • Preserving or restoring the environment
    • Promoting human rights
    • Establishment of civil society
  • Ineligible organization types: Not all 501(c)(3) nonprofit organizations are eligible for participation in the Microsoft Donation Program. Those that are not eligible should visit Microsoft Volume Licensing for Industries for more information about charity licensing; they may still be eligible for discounted software from Microsoft. Ineligible organizations include the following:
    • Governmental organizations or agencies.
    • Educational institutions, including K-12 schools, colleges, universities, and trade schools.
    • Healthcare organizations, including hospitals, healthcare networks, health plans, ambulatory healthcare services, home healthcare and assisted living healthcare organizations, health research organizations, and laboratories. Exceptions include independent nonprofit organizations with the following missions: community, behavioral and women's health clinics; hospices; emergency services; and blood, tissue and organ banks.
    • Professional, commerce, and trade associations.
    • Sponsorships of events, tables, exhibitions, or performances.
    • Fundraising events such as luncheons, dinners, walks, runs, or sports tournaments.
    • Political, labor, and fraternal organizations.
    • Refurbishers that will be installing the donated software on refurbished computers to be distributed or donated to nonprofits or schools. Please visit the Registered Refurbisher Program.
    • Nonpublic, non-501(c)(3) libraries, including private libraries, school libraries, specialty libraries, armed forces libraries, and libraries in government agencies.
  • Terms of service: Organizations that request Microsoft products must agree to any applicable terms of service.
  • Amendments: Microsoft reserves the right to supplement or amend these eligibility guidelines at any time without notice.
  • Anti-discrimination policy: To be eligible to participate in this program, organizations must attest to the following statement, which certifies compliance with the Microsoft corporate citizenship nonprofit giving antidiscrimination policy:
    My organization does not have a policy or mission of discriminating in hiring, compensation, access to training or services, promotion, termination, or retirement based on race, color, sex, national origin, religion, age, disability, gender identity or expression, marital status, pregnancy, sexual orientation, political affiliation, union membership, or veteran status.
    My organization is a religious organization, and any discriminatory practices of my organization are exempt from laws that otherwise prohibit such discrimination.
  • Product distribution:
    • Products will be distributed under this program to qualifying organizations and libraries only, not to individuals.
    • Recipient organizations may not transfer or resell Microsoft products.
    • Microsoft products may not be installed on computers that will be given to or sold to other organizations or individuals, even as part of a charitable program.