Different tones are used to identify internal from exter-
nal calls.
The intercom call tone is single note whilst that from
the entry panel is dual note.
To initiate an internal conversation lift the handset and
press the desired intercom button.
When the call is attended the audio line to the entry
panel is disconnected and the intercom conversation
cannot be overheard at the entry panel.
If during an intercom conversation there is a call from
the entry panel a softer note is heard in the handset
loudspeaker.
In this instance to attend the call it is first necessary to
replace both handset on the cradle.
WARNING FOR THE USER
• Please do not open or tamper with the device.
• The device operating with a very low voltage (24
VAC - 50 VDC) and cannot be connected to higher vol-
tages.
• In the case of breakdown or modification of the
apparatus (such as power supplier...) please contact a
specialized maintenance service.