Require MFA before access a teams meeting

Hi to all,

I would like to know if there is a way to apply for MFA for external users who have received an invitation to attend a teams meeting via email. The MFA should be requested before they access the meeting.

I've tried to add external users on a team on teams(creating a dynamic group on Azure AD and a Conditional Access Policy), they receive an invitation link on their external emails and MFA works good. But if i receive a direct invitation for a teams meeting MFA is not required.

Thanks for your response