Call Transcription: Zia and RingCentral

Can I use telephony integration with RingCentral for call transcription/recording?

In my CRM Setup > Zia > Communication > Call Transcription, if I try to enable it, it gives a warning "Please set up a telephony integration and then enable call recording to use call transcription."

I already have telephony integration via RingCentral with manually-launched call recording (per call basis). What else do I need to do?