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Maintenance of telephony (external connection)

On Wednesday, May 6, 2026, a conversion of the VoIP connection DFN (Telekom) will take place in the time window between 06:00 and 08:00.

During this time window, the external connection will be down for a maximum of 10 minutes.

External incoming and outgoing telephone calls are not possible during this time.

Internal telephony will not be affected.

 

If you have any queries, please contact the ITMC Service Desk at any time(service.itmc@tu-dortmund.de).