GTL’s Voice IQ™ solves issue of inmate identification on calls with biometric voiceprints

Reston, Virginia (PRWEB) –April 7, 2015 – Global Tel*Link (GTL), the leading provider of correctional technology solutions, announces the release of Voice IQ™, the latest intelligence feature available for its inmate telephone platforms that solves issues of inmate identification on calls. Voice IQ™, patented by GTL as a “Telecommunication call management and monitoring system with voiceprint verification,” uses the latest in voice biometrics to track and verify the identity of inmates and prevent fraud.

Using one of the most comprehensive natural language speaker verification tools in the speaker verification industry, Voice IQ builds a voiceprint profile for each inmate and enrolls that print in its repository for comparison in future calls. Unlike other technologies which analyze the calls after the call is completed, Voice IQ continuously compares portions of the call to the recorded voiceprint to verify the inmate’s identity during the call.

ITS users are able to detect fraud using the Voice IQ function, quickly and easily verifying an inmate’s profile and identifying call records where Voice IQ has detected possible inmate speaker changes during the call. A specific icon is displayed with a time stamp indicating when any speaker change activity was detected.

Since the voiceprint repository builds as more inmates are enrolled, Voice IQ provides investigators with a powerful research tool that grows with their needs and as inmate voice prints are added, potentially extending to the over 1.1 million inmates utilizing GTL’s inmate telephone services. Voice IQ slows the growth of inmate telephone fraud and helps investigators positively identify speaker change events related to criminal activity inside and outside of the facility.

Voice IQ is one of many tools in the IQ family of intelligence products. Together, these products form the most holistic approach to intelligence gathering in the correctional industry, offering investigators a broad range of options for gathering pertinent, actionable intelligence. For more information about this new call fraud detection feature, contact a GTL representative today for a demonstration or visit


About Global Tel*Link
GTL is the leading provider of integrated correctional technology solutions, delivering financial value, security, and ease of operation to our customers through visionary products and solutions at the forefront of corrections innovation. As a trusted correctional industry leader, GTL provides service to approximately fifty percent of inmates nationwide, including service to 32 state departments of corrections, the District of Columbia, Puerto Rico, and 32 of the largest city/county facilities. GTL is headquartered in Reston, Virginia, with more than 10 regional offices across the country. To find out more about GTL, please visit our website

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Industry Publications

Feature Articles

The July/August 2015 print edition of Corrections Today included a story submitted by the South Carolina Department of Corrections (SCDC) about an automated process and system that was put in place to automate inmate requests to staff. The article explains how the request system that was deployed by GTL for SCDC ultimately led to a request fulfillment rate of 97.6%. The digital reprint is available below.
Corrections Today July/August 2015 (.pdf)

The March/April 2015 print edition of Correctional News included a feature story that covered GTL’s position in the market, the full breadth of our portfolio, and how we can deliver whole solutions to our customers. The digital reprint is available below.
March / April 2015 (.pdf)