[Freeswitch-users] ESL asynchronous use

Brian West brian at freeswitch.com
Thu Nov 11 13:45:45 UTC 2021

If you have a crash you should perform a back trace and submit an issue on


On Wed, Nov 10, 2021 at 7:50 PM Telium Technical Support <support at telium.io>

> 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)
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