DETEWE OpenHotel 100 User Manual page 51

Guide for Guests
... for guests with an OpenPhone 26/27:
1
SOS
1 Receiver Key
2 Info Key
Keys on an OpenPhone 26 / OpenPhone 27
... for guests with a standard terminal:
This section can be ignored for those guests with a standard terminal which have
no special keys.
2
The Keys of your Room Telephone
49