Microsoft Lync

Microsoft Lync
Name	Microsoft Lync
Developer	Microsoft
Released	2010
Latest release version	Lync Server 2013 (last major)
Operating system	Microsoft Windows
Platform	x86, x64
Genre	Unified communications, instant messaging, VoIP, video conferencing
License	Proprietary commercial software

Microsoft Lync Microsoft Lync was an enterprise unified communications platform developed by Microsoft for instant messaging, presence, voice over IP, video conferencing, and meeting scheduling. It aimed to unify disparate communications used by organizations including email, telephony, conferencing, and collaboration across clients such as Microsoft Outlook, Microsoft Office, and Microsoft SharePoint. Lync competed with products and vendors in the communications and collaboration sectors including Avaya, Cisco, IBM, and Skype for Business predecessor and successor ecosystems.

History

Lync emerged from a lineage of Microsoft products and acquisitions including Microsoft Exchange, Microsoft Office Communicator, Microsoft Office Live Meeting, and technologies developed alongside Skype and Microsoft Teams initiatives. Announced as Lync in 2010, its roadmap intersected with corporate strategies involving Windows Server and Active Directory deployments, and integrations with Microsoft Exchange Server calendaring and Microsoft SharePoint collaboration. Major milestones included the 2010 release, enhancements aligned with Office 365 and cloud services, and the 2013 Lync Server edition which reflected enterprise shifts mirrored by vendors such as Cisco Systems, Avaya, and Polycom. The product's lifecycle influenced standards efforts involving organizations like the Internet Engineering Task Force and interoperability testing with platforms from Siemens, Alcatel-Lucent, Eclipse Foundation-hosted projects, and implementations used by institutions such as Harvard University and University of Cambridge in pilot programs. Strategic decisions by Microsoft led to convergence with Skype for Business and later transitions toward Microsoft Teams as part of corporate collaboration roadmaps influenced by market moves from Google and Slack Technologies.

Features

Lync provided presence indicators, instant messaging, voice calling, conferencing, desktop sharing, and persistent group chat for enterprises using Microsoft Outlook scheduling and Exchange Online mailboxes. Telephony features included private branch exchange (PBX) integration with vendors like Avaya, Cisco, and NEC, and session initiation protocol support recognized by standards bodies such as the IETF and codec implementations comparable to those in Apple Inc. FaceTime and Google Hangouts. Video conferencing capabilities supported hardware from Polycom, LifeSize, and Logitech, and interoperability with room systems used by companies like HON and government agencies including the United States Department of Defense under specific compliance regimes. Enterprise features also tied into identity and authentication services such as Active Directory Federation Services and certificate authorities like DigiCert and Entrust.

Architecture and Components

Lync Server architecture comprised front-end servers, edge servers, mediation servers, and persistent chat servers, running on Windows Server and integrating with SQL Server for data storage. Key components included the Lync client, the Lync Server, the Lync Web App, and gateway integrations to PSTN providers and SIP trunks from carriers such as AT&T, Verizon Communications, and BT Group. High-availability and disaster recovery patterns referenced clustering technologies similar to Microsoft Failover Cluster and load balancing approaches comparable to F5 Networks appliances. Management and monitoring used tools such as System Center and integration with enterprise directories like Active Directory and identity providers such as Okta in hybrid scenarios.

Deployment and Licensing

Enterprises deployed Lync on-premises, in hybrid configurations with Office 365, or via hosted services from partners including Rackspace and BT Group. Licensing models paralleled Microsoft volume licensing regimes such as Microsoft Volume Licensing and subscription offerings via Microsoft 365 suites, with client access licenses (CALs) and enterprise agreements commonly negotiated with resellers like CDW and Insight Enterprises. Deployment also required coordination with corporate telephony providers such as Verizon Business and professional services firms like Accenture and Deloitte for migration, training, and change management in organizations including Siemens AG and General Electric.

Integration and Interoperability

Lync integrated with Microsoft ecosystems including Microsoft Office, Outlook Web App, SharePoint Server, and Exchange Server, and supported federation with external domains and public IM connectivity protocols. Interoperability testing involved vendors such as Cisco, Avaya, Polycom, Huawei, and software vendors like Zoom Video Communications for gateway-based scenarios. Standards and protocols used included SIP, SRTP, and codecs recognized in work by the IETF and multimedia frameworks similar to WebRTC initiatives driven by organizations like Google and the World Wide Web Consortium. Integration scenarios extended to enterprise resource planning systems from SAP SE and customer relationship management platforms such as Salesforce.

Security and Compliance

Security controls in Lync included TLS and SRTP encryption, integration with Active Directory authentication, and certificate-based trust chains managed by authorities like DigiCert and Let's Encrypt in certain environments. Compliance features addressed archiving and e-discovery requirements interfacing with Microsoft Exchange journaling and third-party archiving vendors such as Veritas and Symantec. Regulatory contexts in which Lync deployments were evaluated included standards and frameworks used by organizations like ISO and NIST, and sector-specific requirements found in HIPAA-regulated healthcare providers and financial institutions such as JPMorgan Chase and Goldman Sachs.

Reception and Legacy

Lync was reviewed and adopted by enterprises for consolidating communications and reducing reliance on multiple vendors like Cisco Systems and Avaya. Analysts from Gartner and Forrester Research evaluated Lync in reports alongside competitors (IBM Sametime, Google Workspace, Cisco Webex), influencing procurement in corporations such as Procter & Gamble and Siemens. The product's technology, protocols, and integrations informed subsequent Microsoft offerings including Skype for Business and Microsoft Teams, and impacted industry discussions at conferences like RSA Conference and Interop. Lync's legacy persists in standards work and in migration pathways undertaken by organizations including NASA and NATO transitioning to cloud-centric collaboration platforms.

Category:Microsoft software