With federal inmate texting, messages are relayed via the federal Corrlinks/TRULINCS manner

https://inmatetextapp215.northvaledigest.com/posts/federal-inmate-text-app-vs-corrlinks-text-app-key-differences-explained

With federal inmate texting, messages are relayed by means of the federal Corrlinks/TRULINCS components, and replies can go back to the external consumer as prevalent text messages.