This is more an administrative question. Ask your school admins about alternatives.
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
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With MS Authenticator coming, what happens if a user (student) does not have a cell phone?
This is more an administrative question. Ask your school admins about alternatives.
--please don't forget to upvote
and Accept as answer
if the reply is helpful--
May need to ask for help from the service provider. For example with Azure / 365 other methods are listed here.
Please don't forget to close up the thread here by marking answer.