User`s manual

NOTE:
If the monitoring service operator is not listening during the first 90-second listen-in/
talk-back period, alarms generated during this period are not sent until the 90-second
listen-in/talk-back period has expired and the system disconnects.
When an alarm is received, the preferred action for the monitoring service operator is
to press button
1, 2, 3 or 7 as soon as the receiver indicates that the connection is
established. Then, the operator receives immediate notice of new alarms, and a
person at the premises hears a listen-in/talk-back confirmation tone.
If the operator
does not press
1, 2, 3 or 7 as soon as the listen-in mode begins, he or she could wait
for up to 90 seconds to learn that another alarm has been generated.
The time remaining for the monitoring service operator to take action when he or she
hears the 8 tones depends on when the alarm is received.
l If the new alarm is generated during the firsf 70 seconds of the 90-
second listen-in/talk-back period, the monitoring service operator has 20
seconds to begin another listen-in/talk-back period.
l If the new alarm is generated after the first 70 seconds, the monitoring
service operator has the remainder of the 90-second period to begin another
listen-in/talk-back period.
When the monitoring service operator hears the 8 tones indicating a new alarm has
been generated, he or she must choose to take one of the following actions:
l Press button 9 to hang up and end the listen-in/talk-back period.
Then, the phone line is available to allow the new alarm to be sent.
l Press button 7 to begin another 90-second listen-in/talk-back
period. If the operator chooses to maintain voice contact with someone at the
premises, the Security System 8300 stores the new alarm and sends it when
the listen-in/talk-back period ends.
NOTE:
The monitoring service operator must press button 9 to hang up properly.
If the operator
hangs up the handset without pressing button 9, the system continues to hold the phone line
for the remainder of the 90-second listen-in/talk-back period. During the remainder of this
period, the phone line is unavailable for calls to be made or alarms to be sent, unless someone
at the premises disarms the system.
EXAMPLE 1:
The monitoring service receives an intrusion alarm. The system automatically enters the listen-in
mode. The operator picks up the phone connected to the receiver and listens to sounds at the
premises for 10 seconds without pressing any phone buttons. At this point, the “Voice Active”
message appears at all Display Control. Keypads, but a person at the premises has no confirmation
that an operator is listening. Also, the operator does not know if a new alarm is generated.
D-6 AT&T Security System 8300 Installer’s Manual