One phone call - we will help you!

In urgent cases, please contact our support hotline. There, technical malfunctions can be dealt with promptly and, if necessary, on site.

You can reach our support hotline Monday to Friday (between 9:00 am and 5:00 pm):*

+49 8703 929-112

Please note that support requests from our retail partners are given priority. For this reason, we would like to point out that there may be longer waiting times when processing your request.

Alternatively, describe your case and send us an e-mail. We will analyze your message and reply immediately via e-mail or telephone. Please address your inquiry to:

support [at]


* German federal holidays excluded

Do you need help and support with problems that are not covered by our free basic support?

Upon request, the support team of TDT is available anytime to support you optimally with your projects and configurations.