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71-491: Skype for Business Server (formerly Microsoft Office Communications Server and Microsoft Lync Server ) is real-time communications server software that provides the infrastructure for enterprise instant messaging , presence , VoIP , ad hoc and structured conferences ( audio , video and web conferencing ) and PSTN connectivity through a third-party gateway or SIP trunk . These features are available within an organization, between organizations and with external users on

142-525: A CSV file , or set up for single sign-on with a local Active Directory using Active Directory Federation Services . More advanced setup and features requires the use of PowerShell scripts. Microsoft 365 offers subscription plans aimed at different needs and market segments, providing different sets of features at different price points. Microsoft has also offered Office 365 subscriptions to students of institutions who have licensed Office software for their faculty. There are two separate backends for

213-1107: A computer monitor or input device, audio hardware and USB interfaces. Many servers do not have a graphical user interface (GUI). They are configured and managed remotely. Remote management can be conducted via various methods including Microsoft Management Console (MMC), PowerShell , SSH and browser-based out-of-band management systems such as Dell's iDRAC or HP's iLo . Large traditional single servers would need to be run for long periods without interruption. Availability would have to be very high, making hardware reliability and durability extremely important. Mission-critical enterprise servers would be very fault tolerant and use specialized hardware with low failure rates in order to maximize uptime . Uninterruptible power supplies might be incorporated to guard against power failure. Servers typically include hardware redundancy such as dual power supplies , RAID disk systems, and ECC memory , along with extensive pre-boot memory testing and verification. Critical components might be hot swappable , allowing technicians to replace them on

284-560: A software as a service basis, including Exchange, Skype for Business, SharePoint, Microsoft Dictate ( speech recognition ), and Office on the web . Through SharePoint's OneDrive for Business functionality (formerly known as SharePoint MySites and SkyDrive Pro, and distinct from the consumer-oriented OneDrive service ), each user also receives 1 TB of online storage. Certain plans also include unlimited personal cloud storage per user. Microsoft 365 services can be configured through an online portal; users can be added manually, imported from

355-582: A Yammer app for SharePoint and single sign-on) to be introduced in July 2013. On July 8, 2013, Microsoft unveiled Power BI , a suite of business intelligence and self-serve data mining tools for Office 365, to be released later in the year. Power BI is primarily incorporated into Excel, allowing users to use the Power Query tool to create spreadsheets and graphs using public and private data , and also perform geovisualization with Bing Maps data using

426-403: A computer program that turns a computer into a server, e.g. Windows service . Originally used as "servers serve users" (and "users use servers"), in the sense of "obey", today one often says that "servers serve data", in the same sense as "give". For instance, web servers "serve [up] web pages to users" or "service their requests". The server is part of the client–server model ; in this model,

497-415: A device used for (or a device dedicated to) running one or several server programs. On a network, such a device is called a host . In addition to server , the words serve and service (as verb and as noun respectively) are frequently used, though servicer and servant are not. The word service (noun) may refer to the abstract form of functionality, e.g. Web service . Alternatively, it may refer to

568-522: A new Microsoft Office app that integrates Word, Excel, and PowerPoint, replacing the previous, separate apps for each. Microsoft Outlook for mobile is derived from the apps Acompli and Sunrise Calendar , which were acquired by Microsoft and discontinued. Some Microsoft 365 online services are usable without a subscription, but with limitations such as advertising and lower storage limits. Business and enterprise-oriented plans for Microsoft/Office 365 offer access to cloud-hosted server platforms on

639-452: A new license, and do not receive feature updates). In July 2017, Microsoft introduced a second brand of subscription services for the enterprise market known as Microsoft 365, combining Office 365 with Windows 10 Enterprise volume licenses and other cloud-based security and device management products. On April 21, 2020, Office 365 was rebranded as Microsoft 365, to emphasize the service's current inclusion of products and services beyond

710-703: A public beta in April 2011, and reaching general availability on June 28, 2011, with a launch aimed originally at corporate users. Facing growing competition from Google 's similar service Google Workspace , Microsoft designed the Office 365 platform to "bring together" its existing online services (such as the Business Productivity Online Suite ) into "an always-up-to-date cloud service" incorporating Exchange Server (for e-mail), SharePoint (for internal social networking, collaboration, and

781-463: A public web site), and Lync (for communication, VoIP , and conferencing). Plans were initially launched for small business and enterprises; the small business plan offered Exchange e-mail, SharePoint Online, Lync Online, web hosting via SharePoint, and the Web App with the enterprise plan also adding per-user licenses for the Office 2010 Professional Plus software and 24/7 phone support. Following

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852-891: A release of Lync Light Client with fewer features. Microsoft also ships the Microsoft Attendant Console. This is a version of the Lync more oriented towards receptionists or delegates / secretaries or others who get a large volume of inbound calls. Persistent Group Chat functionality (introduced with Lync Server 2010) is only supported on the Windows OS client at this time. This requires an additional server or multiple servers for processing group chat transactions. Other client software and devices include: The documentation of Lync 2013 contains references to Lync Room Edition Devices - these are anticipated to provide close to immersive experience. Linux support: Fisil makes

923-411: A server serves data for clients . The nature of communication between a client and server is request and response . This is in contrast with peer-to-peer model in which the relationship is on-demand reciprocation. In principle, any computerized process that can be used or called by another process (particularly remotely, particularly to share a resource) is a server, and the calling process or processes

994-423: A service for the requester, which often runs on a computer other than the one on which the server runs. The average utilization of a server in the early 2000s was 5 to 15%, but with the adoption of virtualization this figure started to increase to reduce the number of servers needed. Strictly speaking, the term server refers to a computer program or process (running program). Through metonymy , it refers to

1065-733: A subscription-based software as a service platform for the corporate market, including hosted services such as Exchange, SharePoint, and Lync Server , and Office on the web. Some plans also included licenses for the Microsoft Office 2010 software. Upon the release of Office 2013 , Microsoft began to promote the service as the primary distribution model for the Microsoft Office suite, adding consumer-focused plans integrating with services such as OneDrive and Skype , and emphasizing ongoing feature updates (as opposed to non-subscription licenses , where new versions require purchase of

1136-406: Is a client. Thus any general-purpose computer connected to a network can host servers. For example, if files on a device are shared by some process, that process is a file server . Similarly, web server software can run on any capable computer, and so a laptop or a personal computer can host a web server. While request–response is the most common client-server design, there are others, such as

1207-618: Is a collaborative effort, Open Compute Project around this concept. A class of small specialist servers called network appliances are generally at the low end of the scale, often being smaller than common desktop computers. A mobile server has a portable form factor, e.g. a laptop . In contrast to large data centers or rack servers, the mobile server is designed for on-the-road or ad hoc deployment into emergency, disaster or temporary environments where traditional servers are not feasible due to their power requirements, size, and deployment time. The main beneficiaries of so-called "server on

1278-514: Is aimed at mainstream consumers, especially those who want to install Office on multiple computers. A University plan was introduced, targeted at post-secondary students. With these new offerings, Microsoft began to offer prepaid Office 365 subscriptions through retail outlets alongside the normal, perpetually licensed editions of Office 2013 (which are only licensed for use on one computer, and do not receive feature updates). On March 19, 2013, Microsoft detailed its plans to provide integration with

1349-427: Is also less of a concern, but power consumption and heat output can be a serious issue. Server rooms are equipped with air conditioning devices. A server farm or server cluster is a collection of computer servers maintained by an organization to supply server functionality far beyond the capability of a single device. Modern data centers are now often built of very large clusters of much simpler servers, and there

1420-405: Is contrasted with "user", distinguishing two types of host : "server-host" and "user-host". The use of "serving" also dates to early documents, such as RFC 4, contrasting "serving-host" with "using-host". The Jargon File defines server in the common sense of a process performing service for requests, usually remote, with the 1981 version reading: SERVER n. A kind of DAEMON which performs

1491-502: Is sold via Microsoft and its cloud services reseller network. On March 30, 2020, Microsoft announced that the consumer plans of Office 365 would be rebranded as "Microsoft 365" (a brand also used by Microsoft for an enterprise subscription bundle of Windows, Office 365, and security services) on April 21, 2020, succeeding existing consumer plans of Office 365. It is a superset of the existing Office 365 products and benefits, positioned towards "life", productivity, and families, including

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1562-704: The Internet is based upon a client–server model. High-level root nameservers , DNS , and routers direct the traffic on the internet. There are millions of servers connected to the Internet, running continuously throughout the world and virtually every action taken by an ordinary Internet user requires one or more interactions with one or more servers. There are exceptions that do not use dedicated servers; for example, peer-to-peer file sharing and some implementations of telephony (e.g. pre-Microsoft Skype ). Hardware requirement for servers vary widely, depending on

1633-646: The Microsoft Office suite, 1 TB of additional OneDrive storage and access to OneDrive Personal Vault, and 60 minutes of Skype calls per month. Under the brand, Microsoft will also add access to its collaboration platform Teams (which will also add additional features designed around family use), and a premium tier of Microsoft Family Safety . Microsoft also announced plans to offer trial offers of third-party services for Microsoft 365 subscribers, with companies such as Adobe ( Creative Cloud Photography), Blinkist , CreativeLive, Experian , and Headspace having partnered. Microsoft 365 Personal and Family succeeded

1704-600: The Patriot Act . In Finland , FICORA has warned Office 365 users of phishing incidents and break-ins that have caused losses of millions of euros. In September 2019, NCSC-FI (National Cyber Security Centre of Finland) created a detailed guide on how to protect Microsoft Office 365 against phishing attempts and any data breaches. In July 2019, the German state of Hesse outlawed the use of Office 365 in educational institutions, citing privacy risks. In December 2020,

1775-526: The Telepathy framework to support MS Lync Servers with some limitation (Audio but no SRTP, No Video) via the extended version of SIP/ SIMPLE . Lync Server has an XMPP gateway server to federate with external XMPP servers. With Lync Server 2013, XMPP is natively part of the product. The ejabberd XMPP server has a bridge that enables federation with OCS servers, without gateways (transports). Competitors to Lync Server include: In instant messaging ,

1846-548: The US Department of Commerce was breached via Office 365. The attackers were able to access staff emails for several months. A July 1, 2021 cybersecurity advisory from British ( NCSC ) and American ( NSA , FBI , CISA ) security agencies warned of a GRU brute-force campaign from mid-2019 to the present (July 2021) that focused a "significant amount" of activity on Microsoft Office 365 cloud services. On November 10, 2023, IT news portal Heise online disclosed in

1917-409: The publish–subscribe pattern . In the publish-subscribe pattern, clients register with a pub-sub server, subscribing to specified types of messages; this initial registration may be done by request-response. Thereafter, the pub-sub server forwards matching messages to the clients without any further requests: the server pushes messages to the client, rather than the client pulling messages from

1988-514: The request–response model: a client sends a request to the server, which performs some action and sends a response back to the client, typically with a result or acknowledgment. Designating a computer as "server-class hardware" implies that it is specialized for running servers on it. This often implies that it is more powerful and reliable than standard personal computers , but alternatively, large computing clusters may be composed of many relatively simple, replaceable server components. The use of

2059-400: The "Home Premium" plan to "Home,” and added a new "Personal" plan for single users. In June 2014, the amount of OneDrive storage offered to Office 365 subscribers was increased to 1 terabyte from 20 GB. On October 27, 2014, Microsoft announced "unlimited" OneDrive storage for Office 365 subscribers. However, due to abuse and a general reduction in storage options implemented by Microsoft,

2130-517: The "Microsoft 365" brand. It continues to reside on the domain name office365.com , whereas personal (non-education/enterprise) accounts are on live.com . However, Microsoft reversed this stance with the release of an Office 2024 preview build in November 2023. Microsoft first announced Office 365 in October 2010, beginning with a private beta with various organizations, leading into

2201-580: The 1 TB cap was reinstated in November 2015. In June 2016, Microsoft made Planner available for general release. It is considered to be a competitor to Trello and to other agile team collaboration cloud services. In April 2017, Microsoft announced that with the ending of mainstream support for Office 2016 on October 13, 2020, access to OneDrive for Business and Office 365-hosted servers for Skype for Business will become unavailable to those who are not using Office 365 ProPlus or Office perpetual in mainstream support. In July 2019, Microsoft announced that

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2272-888: The IP phone from the Microsoft Office Communicator client. The Siemens OpenScape solution offers a federation with the Office communicator, and also an integration into the office communicator, allowing to use the standard functionalities of the office communication suite together with the SIP based voice functionalities of the Siemens platform. The Asterisk telephone platform supports SIP, IAX, and ISDN connections. Most telephones that support these protocols may be used with Asterisk, including software phone clients. Server software Client–server systems are usually most frequently implemented by (and often identified with)

2343-847: The Internet, the dominant operating systems among servers are UNIX-like open-source distributions , such as those based on Linux and FreeBSD , with Windows Server also having a significant share. Proprietary operating systems such as z/OS and macOS Server are also deployed, but in much smaller numbers. Servers that run Linux are commonly used as Webservers or Databanks. Windows Servers are used for Networks that are made out of Windows Clients. Specialist server-oriented operating systems have traditionally had features such as: In practice, today many desktop and server operating systems share similar code bases , differing mostly in configuration. In 2010, data centers (servers, cooling, and other electrical infrastructure) were responsible for 1.1–1.5% of electrical energy consumption worldwide and 1.7–2.2% in

2414-482: The Microsoft 365 subscription. They are installed using a "click-to-run" system which allows users to begin using the applications almost instantaneously, while files are downloaded in the background . Updates to the software are installed automatically, covering both security and feature updates. These applications were one of the core components of the initial Office 365 service. If the user's subscription lapses,

2485-693: The Microsoft Office brand, in favor of branding all products under the Microsoft 365 name. This change took effect on Office.com in November 2022, followed by the Office mobile apps in January 2023. The Microsoft Office brand will still be used for legacy products, including subscription products still carrying the "Office 365" name since the previous Microsoft 365 rebranding, and the "on-premises"/perpetually licensed Microsoft Office 2021 . The Microsoft 365 desktop applications (formerly marketed as Microsoft Office ) are primarily used on personal computers running Microsoft Windows , and are distributed as part of

2556-470: The Office 2013 desktop applications, and the service as a whole for being suitable in small business environments, while still offering "powerful" options for use in larger companies (such as data loss protection and the ability to integrate with a local Active Directory instance). However, the service was severely criticized for how it handled its 2013 update for existing users, and its lack of integration with services such as Skype and Viva Engage . In

2627-436: The Office 365 Personal and Home subscriptions, with no change in pricing. Office 365 for small- and medium-sized businesses was also renamed Microsoft 365, with Office 365 Business and ProPlus becoming "Microsoft 365 Apps for business" and "Microsoft 365 Apps for enterprise", Office 365 Business Essentials becoming "Microsoft 365 Business Basic", and Office 365 Business Premium becoming "Microsoft 365 Business Standard" (with

2698-709: The Office 365 platform was now compliant with the ISO/IEC 27001 security standards, the European Union 's Data Protection Directive (through the signing of model clauses ), and the Health Insurance Portability and Accountability Act for health care environments in the United States. At the same time, Microsoft also unveiled a new "Trust Center" portal, containing further information on its privacy policies and security practices for

2769-574: The Power Map tool (previously available as a beta plug-in known as GeoFlow). Users will also be able to access and publish reports, and perform natural language queries on data. As a limited-time offer for certain markets (but notably excluding the US), Microsoft also offered a free one-year Xbox Live Gold subscription with any purchase of an Office 365 Home Premium or University subscription, until September 28, 2013. From April 15, 2014, Microsoft renamed

2840-476: The Skype for Business suite. The other major components are VoIP telephony and video conferencing through the desktop communicator client. Remote access is possible using the desktop, mobile and web clients. Several third parties have incorporated Skype for Business functionality on existing platforms. HP has implemented it on its Halo video conferencing platform. When Microsoft Office Live Communications Server

2911-536: The United States. One estimate is that total energy consumption for information and communications technology saves more than 5 times its carbon footprint in the rest of the economy by increasing efficiency. Global energy consumption is increasing due to the increasing demand of data and bandwidth. Natural Resources Defense Council (NRDC) states that data centers used 91 billion kilowatt hours (kWh) electrical energy in 2013 which accounts to 3% of global electricity usage. Environmental groups have placed focus on

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2982-634: The applications enter a read-only mode where editing functionality is disabled. Full functionality is restored once a new subscription is purchased and activated. Although there are still "on-premises" or "perpetual" releases of Office released on a three-year cycle, these versions do not receive new features or access to new cloud-based services as they are released on Microsoft 365. All of these applications, excluding Access and Publisher , are also available on macOS . Word, Excel, and PowerPoint are available as mobile and web app , usable for free with limitations, although they do not contain all of

3053-437: The article "Microsoft lays hands on login data: Beware of the new Outlook", that "if you try out the new Outlook, you risk transferring your IMAP and SMTP credentials of mail accounts and all your emails to Microsoft servers." TechRadar gave the 2013 update of Office 365 a 4.5 out of 5, praising its administration interfaces for being accessible to users with any level of expertise, the seamless integration of OneDrive Pro into

3124-674: The capability to log and archive all instant message traffic passing through the server and to create Call Detail Records for conferences and voice. These features can help provide compliance with legal requirements for many organizations. The Archiving server is not an overall end-to-end compliance solution, as archiving requires you to install the Archiving Server and to configure front end servers accordingly. Lync Server also enables organizations to interoperate with four external IM services: AOL Instant Messenger , Microsoft Messenger service , Yahoo! Messenger , and Google Talk . PIC

3195-542: The carbon emissions of data centers as it accounts to 200 million metric tons of carbon dioxide in a year. Office 365 Microsoft 365 is a product family of productivity software , collaboration and cloud-based services owned by Microsoft . It encompasses online services such as Outlook.com , OneDrive , Microsoft Teams , programs formerly marketed under the name Microsoft Office (including applications such as Word , Excel , PowerPoint , and Outlook on Microsoft Windows , macOS , mobile devices , and on

3266-413: The core Microsoft Office software family (including cloud-based productivity tools and artificial intelligence features). Most products that were called Office 365 were renamed as Microsoft 365 on the same day. In October 2022, Microsoft announced that it would discontinue the "Microsoft Office" brand by January 2023, with most of its products and online productivity services being marketed primarily under

3337-409: The corporate network. Skype for Business Server also supports remote users, both corporate users on the Internet (e.g. mobile or home workers) as well as users in partner companies. Skype for Business supports identity federation , enabling interoperability with other corporate IM networks. Federation can be configured either manually (where each partner manually configures the relevant edge servers in

3408-562: The enterprise social networking platform Yammer (which they had acquired in 2012) for Office 365, such as the ability to use a single sign-on between the two services, shared feeds and document aggregation, and the ability to entirely replace the SharePoint news feed and social functionality with Yammer. The ability to provide a link to a Yammer network from an Office 365 portal was introduced in June 2013, with heavier integration (such as

3479-483: The existing Microsoft 365 Business product becoming "Microsoft 365 Business Premium"). The Office 365 brand remains in use for its enterprise, education, healthcare, and governmental plans. Microsoft stated that "over the last several years, our cloud productivity offering has grown well beyond what people traditionally think of as 'Office'", citing examples such as Forms , Planner , Stream , and Teams. On October 13, 2022, Microsoft announced that it would be phasing out

3550-607: The free public instant messaging networks (Google, Live Messenger, Yahoo and AOL) are widely used and represent a degree of competition. There have been attempts by other vendors at providing solutions such as Yahoo! 's Enterprise Instant Messenger; however these attempts have been largely unsuccessful. An ICQ corporate client and server option once existed, but it is no longer supported or developed. Products such as Cisco Unified Presence Server (Version 6.0.2+) support federation with Microsoft Office Communication Server 2007 to provide presence of Cisco IP phones and remote call control of

3621-443: The functionality as the desktop versions. The mobile apps were originally limited to Office 365 subscribers, but basic editing and document creation has since been made free for personal use. An active Microsoft 365 subscription is still required to unlock certain advanced editing features, use the apps on devices with screens larger than 10.1 inches, or to use the apps for commercial purposes. In February 2020, Microsoft introduced

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3692-411: The go" technology include network managers, software or database developers, training centers, military personnel, law enforcement, forensics, emergency relief groups, and service organizations. To facilitate portability, features such as the keyboard , display , battery ( uninterruptible power supply , to provide power redundancy in case of failure), and mouse are all integrated into the chassis. On

3763-573: The hosted Skype for Business Online service would be discontinued on July 31, 2021, with users being redirected to the Microsoft Teams collaboration platform as its replacement. Since September 2019, Skype for Business Online is no longer offered to new subscribers. In October 2017, the existing Outlook.com Premium service was discontinued and folded exclusively into Office 365, with all Personal and Family subscribers subsequently being upgraded to 50 GB of storage. The "Microsoft 365" brand

3834-534: The new version of Lync became Skype for Business with a new client experience, new server release and updates to the service in Office 365 . Microsoft has stated that general availability for Skype for Business Server 2019 is targeted for the end of 2018. Microsoft Lync is the primary client application released with Lync Server. This client is used for IM, presence, voice and video calls, desktop sharing, file transfer and ad hoc conferences. With Lync 2013 there will be

3905-514: The official launch of the service, Business Productivity Online Suite customers were given 12 months to migrate from BPOS to the Office 365 platform. With the release of Office 2013 , an updated version of the Office 365 platform was launched on February 27, 2013, expanding Office 365 to include new plans aimed at different types of businesses, along with new plans aimed at general consumers, including benefits tailored towards Microsoft consumer services such as OneDrive (whose integration with Office

3976-465: The only available supported Linux client for Lync. The unifiedme.co.uk reference lists a Pidgin -based workaround, but according to the information at CERN, it has important limitations. The Damaka reference leads to the Google+ main page and has no information on a Linux client that I could find. The Fisil reference goes to a project management company that can write custom software. Lync Server also has

4047-551: The other organization) or automatically (using the appropriate SRV records in the DNS ). Microsoft Skype for Business Server uses Session Initiation Protocol (SIP) for signaling along with the SIMPLE extensions to SIP for IM and presence. Media is transferred using RTP and SRTP . The live meeting client uses Persistent Shared Object Model (PSOM) to download meeting content. The communicator client also uses HTTPS to connect with

4118-532: The products: Aimed at mainstream consumers, both plans offer access to Microsoft Office applications ( Word , Excel , PowerPoint , Outlook , Publisher , and Access ) for home/non-commercial use on one computer ( Windows , macOS , and mobile devices), with access to additional online-based services and premium creative content, 1 TB of OneDrive storage with Advanced Security, 60 minutes of Skype international calls per month (subject to area), and partner offers. In December 2011, Microsoft announced that

4189-522: The public internet or standard phones (on the PSTN as well as SIP trunking). One basic use of Skype for Business Server is instant messaging (IM) and presence within a single organization. This includes support for rich presence information, file transfer and voice and video communication. Skype for Business Server uses Interactive Connectivity Establishment for NAT traversal and TLS encryption to enable secure voice and video both inside and outside

4260-564: The running server without shutting it down, and to guard against overheating, servers might have more powerful fans or use water cooling . They will often be able to be configured, powered up and down, or rebooted remotely, using out-of-band management , typically based on IPMI . Server casings are usually flat and wide , and designed to be rack-mounted, either on 19-inch racks or on Open Racks . These types of servers are often housed in dedicated data centers . These will normally have very stable power and Internet and increased security. Noise

4331-411: The server as in request-response. The role of a server is to share data as well as to share resources and distribute work. A server computer can serve its own computer programs as well; depending on the scenario, this could be part of a quid pro quo transaction, or simply a technical possibility. The following table shows several scenarios in which a server is used. Almost the entire structure of

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4402-412: The server's purpose and its software. Servers often are more powerful and expensive than the clients that connect to them. The name server is used both for the hardware and software pieces. For the hardware servers, it is usually limited to mean the high-end machines although software servers can run on a variety of hardwares. Since servers are usually accessed over a network, many run unattended without

4473-582: The service. In May 2012, Microsoft announced that Office 365 was now compliant with the Federal Information Security Management Act : compliance with the act would now allow Office 365 to be used by U.S. government agencies. In spite of claiming to comply with European data protection standards, and in spite of existing Safe Harbor agreements, Microsoft has admitted that it will not refrain from handing over data stored on its European servers to US authorities under

4544-400: The web ), enterprise products and services associated with these products such as Exchange Server , SharePoint , and Viva Engage . Microsoft 365 also covers subscription plans encompassing these products, including those that include subscription-based licenses to desktop and mobile software, and hosted email and intranet services. The branding Office 365 was introduced in 2010 to refer to

4615-408: The web components server to download address books and expand distribution lists. By default, supported combinations include encrypted communications using SIP over TLS and SRTP as well as unencrypted SIP over TCP and RTP. Microsoft has published details of supported configuration for qualified vendors through Unified Communications Open Interoperability Program (UCOIP). IM is only one portion of

4686-574: The word server in computing comes from queueing theory , where it dates to the mid 20th century, being notably used in Kendall (1953) (along with "service"), the paper that introduced Kendall's notation . In earlier papers, such as the Erlang (1909) , more concrete terms such as "[telephone] operators" are used. In computing, "server" dates at least to RFC 5 (1969), one of the earliest documents describing ARPANET (the predecessor of Internet ), and

4757-443: Was a major feature of the 2013 suite). The server components were updated to their respective 2013 versions, and Microsoft expanded the Office 365 service with new plans, such as Small Business Premium, Midsize Premium, and Pro Plus. A new Office 365 Home Premium plan aimed at home users offers access to the Office 2013 suite for up to five computers, along with expanded OneDrive storage and 60 minutes of Skype calls monthly. The plan

4828-601: Was announced at VoiceCon in Amsterdam in October 2008, a year after releasing Office Communications Server 2007. Microsoft released Microsoft Office Communications Server 2007 R2 in February 2009. The R2 release added the following features: Microsoft Lync Server 2010 reached general availability in November 2010. Microsoft Lync 2013 was released to manufacturing in October 2012 with SP1 being released in March 2014. In 2015,

4899-508: Was first introduced at Microsoft Inspire in July 2017 as an enterprise subscription product, succeeding the "Secure Productive Enterprise" services released in 2016, and combining Windows 10 Enterprise with Office 365 Business Premium, and the Enterprise Mobility + Security suite including Advanced Threat Analytics, Azure Active Directory , Azure Information Protection, Cloud App Security and Microsoft Intune . Microsoft 365

4970-443: Was first introduced with Service Pack 1 for Live Communications Server 2005 , PIC is licensed separately for Yahoo, but is free for AOL and Messenger service for customers with Software Assurance. Microsoft announced that effective 30 June 2014, they will no longer support PIC connectivity to AOL/AIM As of 2012, the third-party SIPE plugin enables third-party clients such as Pidgin , Adium and Miranda NG as well as clients using

5041-615: Was originally launched on 29 December 2003, it replaced the Exchange Instant Messenger Service that had been included in Exchange 2000, but which was removed from the Exchange 2003 feature set. Holders of Exchange 2000 licenses which included Software Assurance were entitled to receive Live Communications Server as an upgrade, along with Exchange 2003; however, Live Communications Server Client Access Licenses were purchased as normal for new users. OCS R2

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