We're having issues getting MFA to work with Polycom VVX phones. MFA-enabled users can sign in but cannot pull calendar details from Exchange Online.
Is there a list of Skype supported desk phones that support MFA?
We're at the point where we need to consider other options.
If you are using MFA, web sign-in is required.
Web Sign In supports Multi-Factor Authentication (MFA) on polycom phones. If you are using MFA, you must use Web Sign In as the user sign-in method with Polycom phones.
For more information on configuring Office 365, see Microsoft's Configure Azure Multi-Factor Authentication Settings.