# Call-Out Precedence

Whenever the Catalyst needs to make an outgoing call, the RTU will need to decide if a call of higher ranking is pending. Some report calls have precedence over other types of report calls. Higher-ranking reports will be made before those of lower ranking. The call-out precedence order is as follows:

1) Test Calls -- These calls will be made before any other type of call. Operators performing installation and troubleshooting normally would use test calls.

2) Alarm Notification Calls and Log File "High-water" Download Calls -- These two types of calls have equal precedence and must be acknowledged or completed before other types of reports can occur.

3) Acknowledgment Report Calls -- These types of calls are a lower priority than Alarms and "High-water."

4) Scheduled Reports -- These calls will be made when there are no other types of reports pending. If an Alarm Notification Report call becomes necessary during a FAX report, the report will be halted when the "maximum number of pages" parameter is satisfied. Once the Alarm is acknowledged, the scheduled report will call the FAX destination once again to deliver the report.