Pub. 42004-467D
Camera Telephone Manual
Page 4 of 30
P:\Standard IOMs - Current Release\42004 Instr. Manuals\42004-467D.docx
04/19
Telephone Operation
Two types of telephones are described in this manual:
•
single emergency push-button operation (autodial)
•
emergency push button and call push button with keypad
This section describes the general operation of each telephone type.
N
OTE
:
The video output (NTSC format) from the camera board becomes operational as soon as 12 V dc
power is applied.
Emergency Call Operation
Applicable to telephones equipped with a
HELP
push button.
1.
Press the
HELP
push button to place an immediate call to a pre-programmed emergency telephone
number; typically, a security office, campus police, or 911.
The
C
ALL
R
ECEIVED
W
HEN
L
IT
indicator (LED) operates as follows:
The indicator will begin to flash when the
HELP
push button is pressed and will light (steadily)
when the telephone detects audio after the call is answered.
or:
The indicator will begin to flash when the
HELP
push button is pressed and will light (steadily)
when the called party acknowledges receiving the call by transmitting a DTMF
#
or
*
after
answering the call.
2.
Two-way, hands-free conversation can now occur.
Non-Emergency Call Operation
Applicable to telephones equipped with a
CALL
push button and keypad, with or without a
HELP
push
button.
Make non-emergency calls on telephone models equipped with keypads as follows:
1.
Press the
CALL
push button (dial tone can be heard over the speaker).
2.
Dial the desired number using the keypad.
The
C
ALL
R
ECEIVED
W
HEN
L
IT
indicator (LED) operates as follows:
The indicator will begin to flash when the
C
ALL
push button is pressed and will light (steadily)
when the telephone detects audio after the call is answered.
or
The indicator will begin to flash when the
C
ALL
push button is pressed and will light (steadily)
when the called party acknowledges receiving the call by transmitting a DTMF
#
or
*
after
answering the call.
3.
Two-way, hands-free conversation can now occur.
4.
Press the
CALL
push button upon completion of the call (hang up).
N
OTE
:
The
CALL
push button can be configured to auto-dial, overriding the keypad dialing feature.
This operation can be used to call a central telephone number and use the keypad to make feature
selections.
