Can we have dual authentication (email and phone)

Can we have dual authentication (email and phone)

 For sign up , you will receive an OTP to your mobile and your email id.

In case of logging in, the OTP will be autofetched and will be sent as an SMS to your mobile number. In case there is a delay in the auto fetch of if is not working, then you can can copy the OTP from your SMS and paste it in the designated place and  click on login.