Good router not only for T-Com. Took advantage of a telecom connection to the router for several years. No problem! Then we switched providers because telecom was too expensive. Now he is a year later back in action, this time for Congstar. For this, the router was just resets and called the configuration via browser. New data from Congstar purely and now the part of a line 16.000er and Voice over IP is running without any problems.