45
DTMF command to control the Control
Panel:
Enter
(1)
to
TALK ONLY
Enter
(2)
to open
TWO-WAY VOICE
COMMUNICATION
Enter
(3)
to
LISTEN-IN ONLY
End a Call: enter (
9
) or (
0
) to
HANG
UP or
put the handset back into the
base cradle.
Enter
(7)
to Speaker Volume Control
and then press
(6)
or
(4)
to increase
or decrease levels of speaker volume
in the “Two-Way” communication
mode(not in
TALK ONLY
mode).
Enter
(8)
to Microphone Sensitivity
Control and then press
(6)
or
(4)
to
increase or decrease levels of
microphone sensitivity in the “Two-
Way” communication mode.
If the speaker volume and microphone
sensitivity was adjusted, the adjusted
value will be kept for the next
communication.
Press any DTMF key,
except the
designated “hang-up” keys to reset
the communication time to its preset
duration. Please note that when a
particular DTMF key is pressed, its
designed shortcut function will be
executed & the communication time
will be extended at the same time.
Pressing the
Test/Reset Button
can
also terminate the call.
The Control Panel will only allow one
call per call-back mode. Terminating a
call during call-back period will
therefore terminate the call-back
mode.
A special conditioned call-back mode
is when both Call-Back mode and
Help Arrived mode are activated. For
the duration of Help Arrived mode, the
Callback function is always available.
The Monitoring Center can call CTC-
1052-QT as many times as possible
until Help Arrived Mode is terminated
(Please refer to Help Arrived Signaling
section for more details).
<NOTE>
If you wish to enable a designed
shortcut function, please press the
DTMF keys for over 1 second to enable
the function you desire.
Follow On Operation
If Command #38 is set as
0
, Follow-On, or
2
, Follow-On & Call-Back, it will then follow
its setting as in Command #45,
Follow-On
Choice
to open Two-way Voice, or, Listen-
In, or just waiting for commands.
During the Follow-On period, the Monitoring
Center can remotely control CTC-1052-QT
by the DTMF commands below:
Enter
(7)
to Speaker Volume Control
and then press
(6)
or
(4)
to increase
or decrease the levels of speaker
volume
in
the
“Two-Way”
communication mode (not in
TALK
ONLY
mode).
Enter
(8)
to Microphone Sensitivity
Control and then press
(6)
or
(4)
to
increase or decrease the levels of
microphone sensitivity in the “Two-
Way” communication mode.
If the speaker volume and microphone
sensitivity was adjusted, the adjusted
value will be kept for the next
communication.
Press any DTMF key
except the
designated “hang-up” keys to reset
the communication time to its preset
duration. Please note that when a
particular DTMF key is pressed, its
designed shortcut function will be
executed & the communication time
will be extended at the same time.
Communication can be terminated by the
following:
Pressing the
Test/Reset Button
.
Automatically hangs up after the
Follow-On Period expires.
The allowable time duration for
Follow-On
Period
is set by Command #46 (1-10
mins).
During Two-way Voice Communication, at
20 & 10 seconds before the Follow-On
period expires, CTC-1052-QT will emit two
beeps to alert both the user and the
Monitoring Center Personnel.
<NOTE>
If you wish to enable a designed
shortcut function, please press the
DTMF keys for over 1 second to enable
the function you desire.
