Inmate-to-inmate telephone calls are not only facility rule violations, they’re dangerous. Inmates can use them to plot crimes with gang members, plan disruptions, or subvert trial testimony. Called parties use bridges and speaker phones to help inmates make these calls. ICER, the Inmate Intercommunication Evaluation and Reporting system, detects inmate-to-inmate telephone calls. It finds these calls whether the inmates are within a facility or in different facilities across the country, and whether they called the same outside number or two different ones. ICER automatically logs every inmate-to-inmate call that occurs and sends email alerts to investigators. ICER is now installed at a growing network of 1175 Securus facilities across the United States.


  • Detects completed inmate-to-inmate telephone calls within an agency or between agencies across the country
  • Identifies the inmates, their locations, the call date and times, and the phone numbers they called
  • Finds calls even when inmates dial separate outside phone numbers to connect with each other


  • Investigators at the call sites receive ICER alerts with inmate names, locations and called numbers
  • Facilities never need to transmit audio files
  • Each agency decides whether to share details about the calls and inmates with other agencies