hello, im wondering how much performance do we loose when using ESL instead of running it via dialplan? without ESL with a fine tuned FS and a short dialplan ( answer, playback like 20 seconds file, hangup ) im able to service 75 CPS. On the same FS, when i use ESL to answer the call, playback the same file and hangup, im not able to run more than 2 CPS... this is a huge impact and i really can't believe it. I'm using event-socket outbound e.g.: <action application="socket" data="127.0.0.1:8088 async full"/> my extension looks like: <extension name="ESL_C"> <condition field="destination_number" expression="^(6666)$"> <action application="socket" data="127.0.0.1:8088 async full"/> <action application="sleep" data="1000"/> <action application="hangup"/> </condition> </extension> im using testserver from lib/esl/ and i just removed the conference command and added the playback one.... also i moved the esl_debug lvl to 0 anyhow, FS cannot run more than 2 CPS compared to 75 CPS when the playback is done from the dialplan. Please, can someone give me a clue on what is going on? Maybe im doing something wrong? how to get maximum FS performance using ESL ? Regards, Tihomir.