Worked out a solution for failed duplicate calls and feature codes doing nothing: asterisk has a very bad feature, or maybe I can call it "bug", whichever command is executed after a channel is hangup generates a new cdr entry with "failed" disposition. If I decide to not log unanswered calls, then if a feature code is wrongly setup or just does nothing on the channel, it will not logged. My solution was to disable "unanswered" calls logging (calls being bridged and unanswered are always logged), but always answer a feature code. if you can, just reload cdr to apply this change</dd><dd>Fixed tenant creation error