Dtmf Control - 2N Helios Force Installation Manual

Silent Automatic Multiple Number Dialling
This mode fully conceals the fact that a telephone call is made. When a button is
pressed, the loudspeaker is off and no PBX or dialling tone can be heard. The
loudspeaker is switched on when the called subscriber confirms connection (by
pressing on its telephone). Thus, a potential thief cannot establish whether the
called person is in the building or not.
Otherwise, the function is the same as with Automatic Multiple Number Dialling with
Confirmation.
Intercom Identification
There are situations in which the calling person does not want to or cannot speak for
security reasons in the automatic dialling mode. In these cases, the intercom can play
back a message stored in its memory. The test series includes the "Wait please,
connection is being established" message. Later, more messages will be available to
the user.

DTMF Control

If Automatic Multiple Number Dialling with Confirmation or Silent Automatic Multiple
Number Dialling is enabled, the intercom can be controlled as shown in the table
below. For convenience, commands 1 to 5 are arranged as they are usually used.
DTMF
FUNCTION
Character
Confirmation indicating to the intercom that the call was successful.
The intercom sends its confirmation signal, the call goes on until the
end of timeout and any of the following commands can be used.
Message muting (during playback).
WARNING! You may not speak while the intercom is playing back
the message!!!
Message re-plays (once).
Call extension: a call is extended by 30 seconds by this command.
or
Can be used repeatedly.
Call termination.
or
These digits are interpreted as a password beginning - for switch
to ,
control.
Notes
These commands do not work in the Automatic Multiple Number Dialling

mode without Confirmation!
The above-mentioned commands may not be accepted due to poor

connection if sent during a message. To avoid this, press the button
during the time of silence (between messages).
Section for Advanced Users 3.4
44