This case study details how VodafoneZiggo, a Dutch telecommunications company, utilizes IR Collaborate to enhance the management of voice quality within their customer contact center. The document outlines the challenges faced by the company, particularly in integrating the Avaya platforms and addressing reported audio quality issues. Key personnel from VodafoneZiggo, including Arjan Thijssen and Richard de Jong, discuss the difficulties in identifying the root causes of voice quality problems. The case study further explains how IR Collaborate was adopted in early 2021 to monitor call and network quality, which has led to significant improvements in operational efficiency and customer experience. The solution facilitated a smooth transition from the legacy Vodafone communications platform to the Ziggo platform by identifying configuration issues proactively. Additionally, the insights gained from IR Collaborate have enabled VodafoneZiggo to optimize their resource utilization and enhance agent management, ultimately leading to a better service for their customers.