8.3.1 Scenario 1: Application Notified of First and Last Blocking Alarm

In this scenario the application wants to be notified of only the first and last blocking alarm events. The default blocking configuration is acceptable. See Figure 31.

Note: If both a GCEV_ALARM and a GCEV_BLOCKED (or GCEV_UNBLOCKED) event are generated for an alarm, the order in which these events are sent to the application is not guaranteed.

The steps are:

1. Configure all known call control libraries - set all alarms to notify and set flow control to first and last blocking.
2. Open a line device. The line device's configuration will be "inherited" from its network ASO, which has already been initialized.

Figure 31. Notification of First and Last Blocking Alarm

Note: The function calls for alarm processing are not shown.

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