ESL input plugin --- Status : experimental plugin, unit tested and maintained. This plugin is used to get events from [Freeswitch ESL](https://freeswitch.org). Config using logstash format: ```` input { esl { host => "127.0.0.1" port => 8021 pass => "ClueCon" } } ```` Parameters : * ``host``: the ESL server address. Required. * ``port``: the ESL server port. Required. * ``pass``: the ESL password. Required. * ``wait``: the ESL timeout/retry rate.