Communications management unit

A communications management unit (CMU) is a type of self-contained group within a facility in the United States Federal Bureau of Prisons that severely restricts, manages and monitors all outside communication (telephone, mail, visitation) of inmates in the unit. == Origins == As part of the Bush Administration's war on terrorism, the April 3, 2006, Federal Register included proposed rules by the Federal Bureau of Prisons (FBOP) that "Limited Communication for Terrorist Inmates".

Source: Wikipedia — Communications management unit (CC BY-SA 4.0)