Known issues with Microsoft Teams

Inability to dial or end a call using the Yealink MP50 phone

If the Skype for Business app is running on your computer, the phone may not respond when using the dial pad, when the handset is replaced, or when choosing the End Call screen option.

Completely exit the Skype for Business app. You may also need to disable Skype for Business in your list of startup apps to prevent it from launching automatically when Windows launches.

Users are unable to download Microsoft's Teams client for Linux; previous downloads no longer work.

Linux users can use the web version of Teams to receive incoming calls or make PC-to-PC calls. If you use Linux and need to dial outbound calls by number, use a mobile app, or request an IP phone from your department.

Yealink MP50 missing user info, dial tone, dialing issues

Windows users may not hear dial tone, or see or be able to use the dial pad. They may not see their name or number appear on the screen.

Windows users should sign into the phone using Hot Desking mode.

Yealink MP50 does not work with macOS.

Yealink MP50 does not work with macOS; compatible only with Windows/PC.

Choose another USB phone or headset equipment.

Loud or persistent dial tone after Skype for Business call or meeting is completed.

Interaction between Teams and Skype for Business may cause Skype for Business users to hear a persistent dial tone or off-hook sound even after their call or meeting is completed. Microsoft is working on a Teams update which will likely solve this problem.

Exit and then restart Skype for Business and/or the Teams app, or restart the computer. This issue should no longer occur when all call or meeting participants are converted to Teams Calls.

Features missing in some web browsers

When using the web version of Microsoft Teams, not all web browsers are fully supported. See Limits and specifications for Microsoft Teams.

Use the web app in a fully supported browser, or download the desktop app.

No dial tone and difficulties with call control on CX300 USB phones with Teams Calls on Windows

Users on Teams Calls with newer Dell Latitude laptops and CX300 phones may experience the following:

• No dial tone
• Dial pad on the CX300 phone does not work
• Answering and ending calls with the phone does not work (these must be done from the Teams app)

To restore call control, disable the Intel Smart Sound Technology driver:

1. Run Windows updates.
2. In the Device manager, choose Sound, video and game controllers.
3. Right-click Intell Smart Sound Technology/Intel SST, and choose Disable device.
4. Unplug the phone, and restart the computer.
5. Plug the phone back in.

This will allow you to use the Dial pad (dialing will start after a 4-5 second delay) and Speakerphone button, and to answer and end the call with the handset; however, you'll still hear no dial tone.

An alternative USB phone (Yealink MP50) is available; see About office telephone equipment at IU.

No dial tone on CX300 phones with Teams Calls on macOS

Mac users may not hear a dial tone on CX300 USB phones; however, the phones will work to make and receive calls in most cases.

Delayed audio when answering phone calls

After answering an incoming phone call, some Teams Calls users hear silence of several seconds before the call connects.

Polls are unavailable in channel meetings.

Polls are only available for meetings created outside of channels.

External users cannot upload files in reply to "file upload" questions in Microsoft Forms.

You cannot configure "file upload" questions in Microsoft Forms to allow file uploads from non-IU respondents.

Renaming a channel in a team in Microsoft Teams will not rename the root folder associated with the channel.

It is not possible to rename the root folder associated with the channel while keeping it tied to the channel. For more about this behavior, see "Shared sites, standard channels, and folders" in File visibility in Microsoft Teams.

Cannot send meeting invitations with more than 750 recipients in Outlook (Win32)

In Outlook (Win32), if you try to schedule or reschedule a meeting with a number of attendees larger than the new 750 recipient limit, you'll see an error message.

Reduce the number of recipients or user distribution lists to send the meeting invitation.

Guest users cannot sync files in some cases.

External guest users in a Team may not be able to use the Sync button to sync files to OneDrive. They may be able to if they are logging in with another institutional OneDrive account at an institution that allows syncing files, with some limitations. If they are using a personal or free Microsoft account, sync will not work. For more, see B2B Sync.

Some invitees do not get meeting invitation email messages.

Some invitees will not get a meeting invitation email message if the meeting is scheduled via Microsoft Teams.

Invitees who are missing the invitation can still join the meeting if they are a member of the Team and channel the meeting is for. Alternatively, another meeting attendee can forward the invitation to them.

Unable to join a Microsoft Teams meeting if the computer's time zone is not set correctly

If the computer's time zone is not set correctly based on location, the Microsoft Teams meeting's Join button may not appear.

To resolve this, make sure the device connecting to Microsoft Teams is configured to automatically set the time zone and is correctly detecting the appropriate time zone.

Unable to recreate a Microsoft Teams channel with the same name as one that has been deleted

After a channel has been deleted in Microsoft Teams, a new channel with the same name cannot be created for 30 days.

The Calendar/Meetings button in Microsoft Teams requires an Exchange Online (EXO) account.

Resolved; the IU EXO migration is complete.

Difficulties changing team picture

In Microsoft Teams, when attempting to change the team picture, team owners may receive the error, "We're having trouble updating your team. Please try again later."

If you make a change to the team name at the same time, the picture will update properly. If needed, you can change the team name back to its original value directly after.