Integration of cellular phone detection and reporting into a prison telephone system

An inmate telephone system incorporating a cellular telephone detection system for detecting unauthorized cellular telephone usage within predetermined zones within a facility, comprising:

• a first cellular telephone transmission detector having a first zone of detection and configured to detect a cellular telephone transmission within the first zone of detection;
• a second cellular telephone transmission detector having a second zone of detection and configured to produce a second detection signal upon detection of the cellular telephone transmission within the second zone of detection;
• and
• a processor having an interface coupled to each of the first and second cellular telephone transmission detectors, the processor configured to:
• determine, based on a first detection signal received from the first cellular telephone transmission detector and a second detection signal received from the second cellular detector, that a contraband cellular telephone transmission is detected within an overlapping portion of the first zone of detection and the second zone of detection;
• and
• transmit a notification message that includes an identification of the detected cellular telephone transmission.

A non-transitory computer-readable medium having instructions stored thereon, execution of which by a computing device causes the computing device to perform operations comprising:

• receiving a first detection signal from a first cellular telephone transmission detector and a second detection signal from a second cellular telephone transmission detector, the first cellular telephone transmission detector having a first zone of detection, and the second cellular telephone transmission detector having a second zone of detection;
• determining, based on the first detection signal and the second detection signal, that a contraband cellular telephone transmission is detected within an overlapping portion of the first zone of detection and the second zone of detection;
• and
• transmitting a notification message that includes an identification of the detected cellular telephone transmission.

A computer-implemented method for detecting unauthorized cellular telephone usage within predetermined zones within a facility, the method comprising:

• providing a first cellular telephone transmission detector having a first zone of detection;
• providing a second cellular telephone transmission detector having a second zone of detection;
• receiving a first detection signal from the first cellular telephone transmission detector and a second detection signal from the second cellular telephone transmission detector;
• determining, based on a first detection signal received from the first cellular telephone transmission detector and a second detection signal received from the second cellular detector, that a contraband cellular telephone transmission is detected within an overlapping portion of the first zone of detection and the second zone of detection;
• and
• transmitting a notification message based on at least one of the first and second detection signals, the notification message includes an identification of the detected cellular telephone transmission.