Been over a month since I loaded the rtl-sdr dongles and unitrunker until today tuned to the EDACS system and notice OKCFD was using ANALOGUE voice instead of Provoice. Not sure if it a operator error or some new procedural thing. It sure did sound better.
Edit: and to top that off occasionally Springlake dispatch was on Analogue voice.
Keep in mind its 5:23am cdt when I typed this message and listening. Things may change during the day. You may not hear any analogue on PD Provoice TG's later on in the day at all but don't discredit me.
Edit number 2
Looks like Dispatch is using Analogue while units using Provoice. The more I listen the more I learn.