Niek Jan van Damme has quit as Managing Director of Telekom Deutschland and will leave at the end of the year.
Van Damme, who is also a board member at Deutsche Telekom, said he was leaving earlier than planned after the Germany-based operator secured the services of Dirk Wössner to replace him.
Wössner left Deutsche Telekom in 2015 to become President of Canada-based Rogers Communications’ Consumer arm.
However, he has decided to return to Germany and will start his new role on 1 January 2018.
Van Damme said: "After intensive talks with our CEO Tim Höttges and the Chairman of the Supervisory Board Ulrich Lehner, I have decided to resign from my current position as of the end of the year.
“It's a bit earlier than I had originally intended, but it's a good fit with my personal life planning and the best way to ensure a seamless transition – similar to the situation with René Obermann and Tim Höttges four years ago."
Höttges said: “I want to thank Niek Jan van Damme profusely for his nearly 15 years of service.
“He contributed a great deal to Deutsche Telekom over this time: the list is extensive, but I wish to particularly emphasise the consolidation of fixed-network and mobile business in a single entity, the build-out and upgrade of our networks, and the significant improvement in service quality at Deutsche Telekom.”
Van Damme served as Chairman of the Managing Board of T-Mobile Netherlands from 2004 to 2009, having joined Ben Nederland, which later became T-Mobile Netherlands, in 1999.
Meanwhile, Deutsche Telekom has started lab trials of new broadband technologies with ADTRAN.
The two companies are testing the new 212MHz G.fast standard with coordinated dynamic time allocation (cDTA) using FTTB deployment models.
ADTRAN said cDTA improves G.fast upstream performance by four to five times.
Deutsche Telekom said in March that it was looking at new ways to develop its fixed line offering due to the “aggressive pricing offers of competitors”.
Last week, it signed a deal with utility and telecoms company EWE that sees the two companies sharing their VDSL networks in northwest Germany.
Jay Wilson, Senior Vice President at ADTRAN, said: “Operators in highly competitive, dense urban or urban environments are challenged to extend gigabit services due to the time and cost that can be associated with pure play FTTH techniques.”
The vendor said G.fast advancements can “eliminate the need for full FTTH for years”.