Is the Comfort telephone interface worth it? I have already searched half the network and also the MT forum and found relatively few information. Even the few proponents I found write that the improvement of the voice quality is minimal to moderate. Nevertheless, everything runs on the phone with this interface. However, there is a connection to the outside antenna, which brings easy measurable advantages in the reception quality depending on the user. It? If so, why? Maybe someone has already gained experience? Thank you!