Hello, Do you recommend to use Push to Talk for Voip apps ?

I was just watching the Enhance voice communication with Push To Talk WWDC22 session video and was wondering (a few questions) -- (1) (when) will you be making the demo app available that was shown at the beginning of the video? (2) There was some detail given regarding the new APNs push type ("pushtotalk"), but it was unclear to me if that's something I need to handle manually, or if those will be sent automatically when I do channelManager.requestBeginTransmitting? (3) How does the audio data itself get routed around? Is that handled by the system between the requestBeginTransmitting and stopTransmitting calls? Or somehow part of the APNs payload? Or something we must handle? Thank you! thanks!!

Can you please post the sample code?