&gt; The point is that there is lots of technology that can do a first pass filter on phone calls.<p>Like most things, it becomes a question of incentives not technology. To the prison it looks like:<p>You want me to pay lots of money to develop&#x2F;purchase a system that will vastly reduce the overhead on my very expensive phone system and will probably make me have to charge less?<p>(And for private prisons)<p>This will reduce recidivism and therefor the number of repeat &#x27;customers&#x27; coming to my facility?