Hey @raze. The announcements from the Base Station cannot be turned off at this time, but you could look into turning down the audio on the Base Station to 0%, which would then elimate all chirps and announcements coming from the Base Station. You will still hear the siren if it were to go off, but this would help get rid of thse extra sounds you may not like.
All in all, thank you for sharing with the Community, @raze! As we value our neighbors’ feedback, we’ve created a Feature Request board. Feel free to add this and any future feature requests there. This will help us to organize and share your requests with our teams here, as well as allow other neighbors to comment and add interest, all in one place.