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Plug in the Teams Yealink phone.
Press Sign in on this device from the main screen on the phone.

Enter your Taylor email address and click Sign in.

Enter your Taylor password and click Sign in.

*You may be prompted to do multifactor authentication.
The phone should automatically begin to sign in to your Taylor account on the device. This may take a few minutes.
Click Got it to finish signing in.

You are now signed into your Teams phone and your profile icon and phone number will be displayed in the upper left corner of the phone screen.
You should now be able to make and receive calls on your Teams phone.