Trying to set an MFA with Voice Call for a user on 365 and get an error

Question

Hi.

I'm trying to set an MFA using Voice Call for a user on 365 and get an error.

There is an Conditional Access Policy that allows MFA with Password+Voice Call and some other different ways.

The phone number is in +972 region. There is a way to check if the tenant is eligible to get phone calls to Israel?

Answer 1

To check if your tenant is eligible to receive phone calls for MFA in Israel, you need to consider whether your tenant is enabled for telecom authentication in that region. According to the Microsoft documentation, certain regions require opt-in for MFA telephony verification. If Israel is listed among those regions, you will need to submit a support request to enable telephony for your tenant.

Additionally, if you are encountering errors, it may be helpful to verify that the phone number is formatted correctly and that the Conditional Access Policy is properly configured to allow MFA with Voice Call.

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References:

• Overview
• Authentication methods in Microsoft Entra ID - Voice call