Please add a feature to make the 60S and later always route voice assistant requests to Phone 1.

Detail:  I have a 60S and like to use it with both an iPhone and a second phone to stream music. I did the same with the 50S as well. On the 60S, the phone 1 is effectively disconnected while streaming music from the phone 2. For example, if I say "Hey Siri" or push the phone button on the 60S, Siri does not respond. If I then turn off phone 2, both "Hey Siri" and the phone button on the 60S properly invoke Siri on the iPhone (phone 1).

The 50S handled this situation better in that it would always default the "Hey Siri" or the phone button press to phone 1, not the actively music streaming phone 2. Please make a firmware improvement on the 60S to allow it to anchor the voice assistant to Phone 1.  This could even be a user selectable option in the device settings of the app.  Something like "Always route phone voice assistant (Siri/Google) to Phone 1" and default the selection to on with a user selectable toggle to turn it off.