The BRI Layer 3 Query Test checks the application layer communications between the switch and the endpoint or adjunct.

For BRI endpoints, an application message containing the appropriate endpoint service state is sent by the switch to the endpoint. The endpoint responds with an acknowledgment to the application message.

This test is not executed for ASAI and Avaya adjuncts from the administration terminal. Rather, a query message is automatically sent by the switch every two minutes. Failure of the switch to receive a response to a query from the adjunct is logged in the Error Log.

This test runs on BRI-SET, Various Adjuncts.