I am having some issues on setting up a dialplan dynamic conference with PIN, from the request URI, and all subsequent joins to that conference to be asked for that PIN.

Here is what I've done so far [1] and almost works as I want to. The issue I have is: when I try to join an "old" conference, I don't get asked for the PIN that was set when the "new" conference was created.

Reading [2], it says "Any later attempt to join the conference must specify the same pin number, if one existed when it was created." (and from this, I understand that the user is asked and must type the same PIN that was set when the conference was created)

I've been searching a while and found something about setting "conference_enforce_security=true", but it didn't work for me.