...
CallAnalyzerAsOutboundProxy.call-properties or CallAnalyzerGenesysOCS.call-properties depending on the mode you are using. This file is located in the config directory of NCA.
Add the new option
app.nca.PostConnectTimeout.ms into the file; this option is defined in ms. To set this to 5 seconds you would then put app.nca.PostConnectTimeout.ms=5000.
Save the file and restart both NCA services