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2020 Corporate Responsibility Report

Updating and stabilizing the network architecture

The migration of German fixed-network lines to Internet Protocol (IP img) technology was completed by the end of 2020. A total of around 25.3 million fixed network customers now use IP-based lines.

The fundamental aim is to operate our networks in the most stable and failure-free manner possible. Major events such as festivals and summits place the network under particular strain. We make sure, however, that voice calls and data are still transmitted in the quality our customers have come to expect by temporarily setting up extra mobile masts or laying additional fiber-optic cables. In the event of natural disasters such as floods, our Disaster Recovery Management team ensures those affected can quickly start communicating again via the network.