A long time we were looking for a way to get rid of the annoying binding to various providers. The unit is (despite initial skepticism) is the solution. It worked previously with D2 - O2, Vodafone, Orange, Klarmobil and 1 & 1 (If no G4 LTE is available on site, everything is automatically set to G2 / G3 UMTS / HSDAP a) and even better in the (mostly unfortunately still expensive) D1 network. Everyone in the family can login with his SIM now - makes at 5 SIMs a 2 GB total of 10 GB Flat with LTE speed and when times guests are there that can help to preserve the flat ... The VoIP call is to be installed for "inexperienced" users with one click. An external antenna leads felt again at least to a doubling of speed. We have the old landline DSL now permanently switched off. All in all, 100 points!