I’m trying to figure out asynchronous use of the ESL (from C).  If I call esl_connect_timeout with a timeout of 0, what happens if the connection is not made immediately?  Is there some callback function indicating success/failure?

If the esl connection is lost (FreeSwitch crashes), is there a callback function indicating the lost connection?  Or do I need to issue a status/keepalive to ensure function succeeds?

Looking a bit at the esl.c code I’m wondering if the above are synchronous only…(polling for status)