Three times certified – twice audited
At our locations in Dortmund (sales) and Bippen/Ohrte (production), we work according to the quality guidelines of ISO 9001:2015 from development and production to goods issue and place customer orientation at the centre of our quality management.
As the protection of our environment for present and future generations is the most important task of our time, we at tde face up to this task and act consistently in accordance with the specifications of the environmental standard ISO 14001:2015.
As the only German network specialist, tde was already able to present the ISO certificate TL 9000 for the telecommunications industry in 2002 and has been certified it again since 2018. The TL 9000 is based on ISO 9001 and is a quality standard for providers of telecommunications components or services. It ensures operational consistency, quantifies performance results, creates a method for collecting and measuring quality and performance data, and helps improve customer service and overall customer satisfaction.
In addition, tde is audited by Deutsche Telekom and Deutsche Bahn.