The Telecommunications Act of 1996 does not allow exclusive contracts between building owners and carriers of any kind. Most people do not know this, but since prisons are multi-tenant, multiunit facilities, GTL is not allowed to have an exclusive contract. Can you say "class action suit"? This also applies to government facilities, as you can read below.
tradeshowinternet.com/about/consumerrights
I hope you guys can use this to your advantage to protect yourselves and your loved ones against this tyranny.
Best of luck.