Authentication through Call not working after changing number

[Marvje]

Hi everybody,

I have been searching on the forum and the knowledge base, but I am unable to find anything so maybe somebody here can help me.
Recently I have changed somebody's Phone number, and after the change the DUO Call authentication stopped working.
All I see is as an error is the following:
Denied - Error

Looking through the logs, and everything seems to be normal there.
There is not a single clue to what "Error" it is referencing, and even if I am able to resolve this issue.
When using text message it works perfectly.

Has anybody ever had this issue?

[Pulkit Mittal]

Hi There,

Does the new phone have a sim card? Was Duo mobile activated on a new phone? If not present already, insert a sim card and send reactivation link.

Regards,

Pulkit

Please mark this helpful if you are happy with the response.

[DuoKristina]

Please contact Duo Support. They can check our telephony provider logging for more information.

The activation status of Duo Mobile is not relevant to your issue.