Wireless revenues rose by 3.6%, which is a slowdown from previous growth of 5.6% in Q3 and 8.6% in Q2 last year.
Q4 operating income rose 1.8%, to €343 million for the company, which operates as the smallest of four operators in Germany.
It presently competes for market share with Vodafone, Deutsche Telekom and KPN’s E-Plus unit.
