If you encounter Teams error "We couldn't connect the call, The call could not be placed, try sending them a message first", see this post.
Struggling with Microsoft Teams "Error B" connection? Discover step-by-step fixes for smooth connectivity. Clear cache, check networks, and more in this ultimate guide to resolving Error B instantly.
The first step is to clear Microsoft Teams cache and cookies. To do this, first, close Teams. Now, click the System Tray, and you will see the Teams icon there. Right-click on it and select Quit. Now, ...
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