Possible Enterprise Voice systems integration.Inter Tenant messaging system allows delivering instant messages between different Microsoft Tenants and other instant messaging platforms.Microsoft Outlook add-on that allows conference planning.Screen sharing between individual users or during conference calls.Web Application allows access to services when no client is installed.Mobile Application allows access to services from anywhere.Voice and Video calling between individual users or conference calls.Conversation history and conversation history search.Instant Messaging allows for the exchange of messages between individual users or groups.Each product has its unique features and use cases, although both have a similar range of tasks. One product is Skype for Business Online (formerly called Microsoft Lync) and a new product called Microsoft Teams, which is being proclaimed to replace Skype for Business. Up to date, Microsoft has two similar in functionality products that can work simultaneously for Office 365 users.