Require MFA for Intune device enrollment question for IOS and Android enrollment

Hello Everyone,

I have IOS devices and Android devices that I enrolled and we have MFA turned on for the user. During the enrollment the user cannot type in the SMS pin code looks like it blocked.

Based on this article 

https://docs.microsoft.com/en-us/mem/intune/enrollment/multi-factor-authentication

In the note section is indicates that a 2nd device is needed to complete the MFA challenge, 

Has anyone found a work around for this, its very inconvince that a user would need to use there personal phone to complete the enrollment of there work phone that is issued to them instead of the work issued phone being able to get the MFA challenge.