AVM FRITZ! Box 6820 LTE (LTE and UMTS , WLAN N to 450 Mbps, 1 x Gigabit LAN, suitable for Germany) Packaging can vary: Amazon.de: Computer & Accessories
Setting up FRITZ!Box for use with a DSL line | FRITZ!Box 7590 | AVM International
FRITZ!Box International
AVM Fritz Box Router Setup for Smart DNS Proxy - Smart DNS Proxy Support