Give meeting organizers the ability to force mute audio/video for all attendees in the meeting options page. Attendees should not be able to un-mute their audio/video with this option set.

Please add the "No one" choice to the Meeting Options section, aka. The Lobby.

With other platforms, you can ask participants to vote and or answer polling questions during the meeting/event. I would like to see functionality such as that available in Teams Live Events (and actually in regular meetings too).

Please use the background blur feature on iPhone

For a large company, I do not feel that capping meeting participants at 250 makes sense. I believe that this limit should be increased to allow large meetings with 500+ employees if necessary instead of a company having to buy an additional license to use Cisco WebEx Meetings.

It would be great that Teams could implement a real-time translation for conversations in a meeting and captioning feature like the Presentation Translator add-in for PowerPoint. This feature would be useful to have a Teams meeting with users in other countries.

Ability to localise dates - In at least AU and UK we use DD/MM - its becomes confusing quickly when half the dates are in local and the other half are in US format

Add Microsoft To Do into Teams via Tab or connector. I can add WunderList but not To Do

Currently the Teams IP Phones are not useable cause in order to dial a call you have to use the onscreen keyboard to search for a contact to see presence or to dial the call. Teams IP Phones need to be able to place certain contacts on a speed dial tab that will show certain contacts and their presence status on one screen. You should be able to glance at the speed dial tab to quickly see who in your team is online and dial them.

Allow me to use my language, 24 h clock and similar
Plus it could proof read my chats accordingly

Having presence delays of up to 4 minutes makes presence largely useless. Having to resort back to typing 'are you free now' after calls, because I can't tell if they are still in the meeting, or have started another meeting or call. Or trying to call somebody and get rejected and a message saying "I'm in a call"

Teams icon pinned in taskbar doesn't blink orange anymore when I receive new messages. I cannot find an option to turn this. Was this removed?

During a Teams Live Event we can either take the TeamClients or a RTMP encoder as streaming source. It would be great to gain the ability to add SIP-endpoints or Skype Room system too.
Being able to stream from any SIP device is the missing puzzle piece in an already great interrop solution.
Imaging being able to use any video conferences room as Broadcast studio?

I`m sure this would empower the Interrop soloution offer by Polycom, Pexip and BlueJeans a lot.

Currently the only workaround is to use RTMP, but the workflow is to bad for the enduser.

Whenever Team is running the presence should show on the Outlook contacts. When composing emails and adding users, it should show the presence of Team. It currently works only for skype for business.

When a PSTN user calls you on Microsoft Teams, if the number is in the address book I would like to be presented with the users name on the toast, not just the PSTN number. The same for call history or anywhere else a PSTN number appears in the client

Support call controls for popular 3rd party headsets (handup, mute) like Plantronics 740-M or Jabra.

It seems that recently Teams starting converting space characters to non breaking space characters. The text with non breaking spaces doesn't work the same, e.g. a search query that not fails.