Changes in accounting policies and changes in the reporting structure

With the exception of the standards, interpretations, and amendments that are effective for the first time in the financial year, Deutsche Telekom did not make any major changes in its accounting policies.

Vivento Customer Services GmbH, a provider of call center services, has been assigned to the Germany operating segment since January 1, 2018; previously it was part of the Group Headquarters & Group Services segment. Comparative figures have been adjusted retrospectively in segment reporting.