Installation guide

Please do not use systems which do not support DTMF transmission during the
call from the wireless DECT phone to the other wireless DECT phone (e.g.
DTMF transmission is required when you need to use the DTMF command for
opening the door). DistyBox has got its own power supply. it works as a DECT
to analog line convertor. The door phone panel is connected to this analogue
line.