You cannot call an inmate, the inmate MUST initiate the call. If you want to get the conversation started, send them a postcard with your number on it
https://www.inmateaid.com/ask-the-inmate/what-is-quickest-way-to-get-in-touch-with-inmate-and-call-him-on-the-phone#answer
Accepted Answer Date Created: November 28,2023