You don't need to patch the problem and anyone trying is probably out to sell you $50 million system.
In my state an inmate was broken out with a helicopter. The Dept of Corrections had an interesting solution. Anyone caught looking up at the sky goes into solitary confinement. No one has tried it since.
You don't patch the cause of the problem, you break the part of the will that would even make you think about the solution. It is much cheaper and it creates a more malleable population.
Not that I approve of the approach but the voters wanting anything that can't be painted as 3 hots and a cot.
Couldn't they instead mortar things into the prison? Shoot a capsule with a phone on a very steep ballistic trajectory.