Roku controls the entire eco-system so it's not an issue that it can't address. Regardless, the selling point of 2-way audio should allow the remote's microphone button function to be redefined to stream audio to the doorbell speaker when the full doorbell app is launched by pressing the 'OK' button in response to the TV screen pop-up notification. When the TV app is active the same microphone function could be implemented by prompting the user to press and hold the 'OK', '1', '2', or navigation buttons to send the remote's microphone audio to the doorbell's speaker without redefining (over-riding) the function of the remote's microphone button. In English, pressing and holding the microphone button and saying the word 'speak' or 'speaker' could also be prompted by the application at which point the AI voice cloud service should be able to determine that the user wishes for the remote's microphone audio be streamed to the doorbell speaker. If viewing Roku security cameras with 2-way audio, which ever camera has focus on screen would be sent the audio. While I don't doubt that there are some users who keep their cellphones with in arms reach, a user who pressed the OK button on their Roku remote already has the TV app loaded and the remote's microphone in hand.
