The software provides two different programs, Phone call + mic, and under the Autosense streaming category, Speech + mic. The latter has a program option that mutes the mic. I find this useful for listening to podcasts or audiobooks while doing cardio exercise with ambient noise.
Both phone streaming and phone calls use the same Bluetooth connection. I’m curious about how the HAs know which is which. Does the phone provide some kind of handshake at the start of streaming or a call that indicates what’s coming?