Unfortunately, only 2 stars because the phone via the built-DECT module background noise interferes. I've had a Fritz! Fon M2, a Fritz! Fon C3, a Fritz! Fon C4 and a Gigaset M400 logged on to the box. Least bothered the noise and when the Gigaset M2, the new C4 it was troublesome and very disturbing at C3. The PLI is 1a. Nevertheless sent back and the new Fritz! Box 7490 ordered. In 7490, a slight noise is heard. But not as much as in the 7390th The wireless has a greater range than in the 7390th Nevertheless, I only 2 * because I am of the opinion, that's the call unacceptable.
