
If you are sure you do need Skype for Business Online, then read on. You have currently deployed Skype for Business Server on-premises, and need to transition to Online gradually, before moving users to Teams.You are deploying in a Virtual Desktop (VDI) environment, and require vendor support for their audio/video plug-ins.You’ve bought meeting room devices that work with Skype for Business Online, but are still awaiting updates for Microsoft Teams.Of course, there are valid reasons why you might need to enable some or all users for Skype for Business. In its default settings in your new Office 365 tenant, it’s capable of using Federation capabilities to allow you to IM and call users of Skype for Business in other organizations, and you can still use the Skype for Business client to join meetings hosted elsewhere. Microsoft Teams is the replacement for Skype for Business Online and comes with the next generation of instant messaging, voice and video calling and meetings, along with group chat and collaboration tools. Enabling via PowerShell or switching back to Teams-Only modeīefore doing anything else, consider using Microsoft Teams instead of Skype for Business Online.Enabling Skype for Business using the admin center.Consider going with it – Teams is ready.Still need help? Go to Microsoft Community. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products. The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Transferring files to Skype contacts isn't supported.īy default, Skype for Business Online is configured to prevent users from sending files through IM that have the following file name extensions:Īde, adp, app, asp, bas, bat, cer, chm, cmd, com, cpl, crt, csh, exe, fxp, grp, hlp, hta, inf, ins, isp, its, js, jse, ksh, lnk, mad, maf, mag, mam, maq, mar, mas, mat, mau, mav, maw, mda, mdb, mde, mdt, mdw, mdz, msc, msi, msp, mst, ocx, ops, pcd, pif, pl, pnp, prf, prg, pst, reg, scf, scr, sct, shb, shs, tmp, url, vb, vbe, vbs, vsd, vsmacros, vss, vst, vsw, ws, wsc, wsf, wsh IIMF helps protect Skype for Business Online users against the most common forms of viruses without degrading the user experience. In Skype for Business Online, certain files types are blocked by the Intelligent Instant Message Filter (IIMF) application. If your attempts to upload attachments to a conference or to send files to a contact generate an error message, this means either that the contact that you're sending the attachment to doesn't have permission to receive files or that the file type is blocked. Generally, if the menu option to send a file isn't available, this means that the administrator has disabled file transfer capabilities for that user.

For more information about Skype for Business Online network requirements, go to the following Microsoft Knowledge Base article:Ģ409256 You can't connect to Skype for Business Online, or certain features don't work, because an on-premises firewall blocks the connection More Information

If a user doesn't see the option to transfer files, verify that file transfer capabilities are enabled for that user.įirewalled networks must meet the network requirements for Skype for Business Online. For Skype for Business Online administrators If you receive an error message when you send or receive files, make sure that the file type being transferred isn't one of those that is listed in the "More Information" section. Solution For Skype for Business Online users

You can't upload file attachments in Skype for Business Online meetings.In this situation, you may experience the following issues: Assume that in an Office 365 environment, you try to send or receive files or attachments in Lync through Skype for Business Online (formerly Lync Online).
