problem while verify phones with Azure AD B2C MFA "Phone method"

Ahmad Sam 1 Reputation point

Hello , guys , i have a problem with Azure B2C , the issue when the users comes to verify their numbers with phone method

the SMS method is working but the phone method return HTTP response with this body "status":"448"

and the problem for all numbers even USA numbers , without exceptions!

I tried to re create the user flow and the app registration part but the issue still it is

hope I can find out a solution here,

Thank you.

Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
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