Instant messaging is available for both Skype-to-Skype and multiparty communication. Instant messaging (IM) is the ability to transfer text messages in real time over an Internet Protocol (IP) network such as the Internet or an organization's corporate network. This makes it easy to determine when someone will be available. When Outlook calendar integration is enabled, a user can check another user’s schedule and get up-to-date availability information directly from that person’s calendar. This feature is called “click-to-communicate.” The user can then click the presence icon and initiate a communication by using Skype for Business and the interactive Office contact card. This connection occurs wherever the user sees a coloured presence indicator that represents a person’s presence status. Users can instantly find and communicate with people from within Microsoft Outlook. Skype for Business presence information is presented throughout the Office 365 suite, such as in OneDrive for Business, which shows the status of the person who last edited a document. Using Skype for Business, users can display their presence status-for example, Available, Away, Do Not Disturb, or Offline-to let others know their availability. Presence is the ability to detect another user’s availability. 4.1 Meeting limits across Office 365 options.3.14 Scheduled Meetings with Skype for Business Web Scheduler.3.13 Scheduled Meetings from Outlook Web Access.3.11 Authentication and Skype for Business Web App Users.3.5 Multiparty Desktop and Application Sharing.3.2 Skype for Business Multiparty Audio and Video.

2.4 Skype-to-Skype Desktop and Application Sharing.2.2 Skype-to-Skype High-Definition Video.2.1 Skype-to-Skype Audio and Video Calls.1 Instant Messaging Presence and Contacts

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