Yes it works. You have to create callcenter-announce-position. Read the initial post that I link to and then see what modifications I made to it. I have DM'd you a test number so you can see how it works when implemented.
I found this post about how to make changes in FreeSwitch and FusionPBX to have the Call Center queue announce the position in queue to the customer. The post form @TurabG got me thinking that it would be nice to tell you your position as soon as you enter the queue. This is his post: https://www.pbxforums.com/threads/t...call-center-queue-and-make-it-permanent.6921/
I played around and made a few changes. I hope some folks will find it useful.
1) I did not like the way it announced "Call number X" so I made a few recordings: using a similar AI...
Dial plan XML changes are part of the setup in the instructions. Here is how my Call Center looks in FusionPBX: The magic is in the new and modified .lua scripts and the modified XML. The GUI is just a basic setup which allows the caller to press-1 to be transferred to a voice mailbox.