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

Ahmad Sam 1

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.

Ahmad Sam 1 Reputation point

2022-04-17T02:57:53.497+00:00

Any Answer Please ?
AmanpreetSingh-MSFT 56,506 Reputation points

2022-04-18T06:06:32.07+00:00

Hi @Ahmad Sam • Please share the correlation ID from the page source of the error page. I will try to track that to identify the issue.
Ahmad Sam 1 Reputation point

2022-04-18T09:00:24.133+00:00

Hello @AmanpreetSingh-MSFT ,
The error is not in a webpage , it's on the response of the MFA endpoint HTTP request/s
I didn't find there any correlation ID in the body, headers or the URL
AmanpreetSingh-MSFT 56,506 Reputation points

2022-04-18T09:25:40.023+00:00

@Ahmad Sam • Can you try using the phone method 5 times in a row within 1 minute. This will force the connection to different telecom providers and if there is a problem with any or some providers, at least 1 phone call should succeed.

Also, please share a screenshot of the call for which you get error "status":"448" and share the correlation ID from the B2C page before making the phone call.
Ahmad Sam 1 Reputation point

2022-04-18T20:57:03.527+00:00

the page after login

the 5 requests in less than 1 minute , response
6th request return bad request
the page look like this while testing the requests as fetch
Ahmad Sam 1 Reputation point

2022-04-20T20:43:36.643+00:00

Hi sir , did you find the solution ?