The system records alarms for each device error. It records the number of alarm occurrences and the date and time of the last occurrence. System Status lists the alarms by category and by trunk. Trunk alarms have a separate count for each trunk type and each particular trunk.
System Status distinguishes between the following alarm types:
Active – Current alarms display in red with a symbol. When the alarm is no longer active, it changes to black.
Historic – Alarms no longer occurring display in black. The system keeps up to 50 historic alarms. If the system discards any historic alarms due to memory limitations, it keeps a count of the number of discards and the corresponding number of occurrences, shown as Lost Alarms.
You can clear alarms using the Clear or Clear All buttons. However, active alarms remain in the list.
The system does not preserve alarms during a system reboot.