We have developed an AES client with the Avaya JTAPI SDK.

In ConnectionListener, "connectionFailed" is returned from AES.

What is the error "connectionFailed"?
Please tell me the cause of this error.

Best Regard,
Ayumi Kato

most likely the session between your application and AE Services was lost for some reason (network failure, closed by AES for cause, etc).
Enable logging, both in the client and on AES, wait for another failure and check the logs.

If the application is processing events in the receive thread to completion, this can happen. Applications need an intermediate buffer between your receive thread and the actual worker thread to avoid traffic backing up into the TCP buffer and causing issues.

Thank you for your answer.
What logging should I enable?
Tell me about each of AES and the client.

Best Regard,
Ayumi Kato

You can enable TSAPI traces on AES using the instructions at:
https://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/support/faq/tsapi/index.gsp?tab=general&accordion=faq-10

To enable traces in the JTAPI Client, there are instructions in the JTAPI Programmers Guide.

Martin