I did it !
A nice and patiente guy, after about an hour supporting me looking and trying many ways, told me he does'nt found it and that he would try to find some answer with an expert and write me later. Until now, any answer received yet.
I guess it is a simple matter of change in your system and allow the user administrator to choose any another way other than phone to proceed with the verification process.
By the way, let me tell you that even allowing the authenticator app method, it is not working.
Regards,
