Texas phone law bans mobile phones in schools: What to know
Texas phone law bans mobile phones in schools: What to know

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New Texas law bans mobile phones in schools. What to know before fall semester begins

Texas phone law bans mobile phones in schools: What to know
New Texas law bans mobile phones in schools. What to know before fall semester begins
Can’t ask where the good guys with a gun are if you can’t dial out, checkmate children
It depends entirely on how districts implement it since there wasn't clear guidelines other than "not in use in the classroom" which could mean just kept in their backpacks.
Also, classrooms should generally have a wired phone for parent teacher communication and the teacher will still have their phone.
I have never seen or heard of a landline in a classroom!