22. SIP Internal Call Failure
If the system SIP extension call fails within the office, the event will be recorded in the alert log.
23. Remote concurrent calls
If the remote concurrent call fails, the event will be recorded in the alert log.
24. Trunk Concurrent calls
When the system detects that the number of concurrent calls of a certain relay exceeds the threshold set by
the relay within a certain period of time, the event will be recorded in the alarm log. Calls are not restricted if
the threshold is exceeded.
25. User login success
Successful user login events will be recorded in the alert log.
26. User login failed
User login failure events will be recorded in the alert log.
27. Data Sync Backup
If the system performs data synchronization and backup abnormalities, the event will be recorded in the alert
log.
Alert Log
Under Web GUI→Maintenance→System Events→Alert Log, system messages from triggered system events
are listed as alert logs. The following screenshot shows system crash alert logs.
Figure 307: System Events→Alert Log
User could also filter alert logs by selecting a certain event category, type of alert log, and/or specifying a certain
time period. The matching results will be displayed after clicking on . Alert logs are classified into two
types by the system:
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