User`s guide

7-20
Alarm Configuration
7.9. The No Dialtone Alarm
The No Dialtone Alarm enables the VMR/NPS to monitor a telephone line connected to
an external modem installed at the VMR/NPS Setup Port, and then provide notification if
the VMR/NPS detects that the phone line is dead or no dialtone is present.
If the No Dialtone Alarm is enabled and the VMR/NPS determines that there is no
dialtone signal, the No Dialtone Alarm can provide notification via email using a network
connection. In the event that the VMR/NPS unit is not connected to a network cable,
the VMR/NPS will also create an entry in the Alarm Log, indicating that the No Dialtone
Alarm has been triggered.
Notes:
• In order for this alarm to function, the No Dialtone Alarm must first be enabled
and the No Dialtone Interval must be defined. To enable the No Dialtone
Alarm and define the No Dialtone Interval, please refer to Section 5.8.
• In order for the VMR/NPS to provide alarm notification via Email,
communication parameters must first be defined as described in
Section 5.9.11.
• In order for the VMR/NPS to provide alarm notification via Syslog Message,
Syslog parameters must first be defined and Syslog Messages must be
enabled as described in Section 5.9.2 and Section 11.
• In order for the VMR/NPS to provide alarm notification via SNMP Trap, SNMP
parameters must first be defined, and SNMP Traps must be enabled as
described in Section 5.9.7 and Section 12.
The configuration menu for the No Dialtone Alarm allows the following parameters to be
defined:
• TriggerEnable: Enables/Disables the trigger for this alarm. When Disabled, this
alarm will be suppressed. (Default = On.)
Note:
• When an alarm is generated, to cancel an alarm without correcting the
condition that caused the alarm, simply toggle the Trigger Enable parameter
Off and then back On again.
• The Trigger Enable, Notify Upon Clear, Email Message and Address 1, 2
and 3 Parameters all include "Copy to All Triggers" options that allow you to
enable/disable the corresponding parameter for all VMR/NPS alarms. For
example, if the No Dialtone Alarm's Trigger Enable parameter is set to "On
(Copy to All Triggers), then all other VMR/NPS alarms will also be enabled.
• ResendDelay: Determines how long the VMR/NPS will wait to resend an email
message generated by this alarm, when the initial attempt to send the notification
was unsuccessful. (Default = 60 Minutes.)