When the phone rings just STOP, PAUSE and BREATHE before responding to the call, using the sound itself as way of bringing yourself back into the present moment.
We are continuously bathed in sound, even in places we would call quiet. Our ears register all these sounds, but our brain blocks most of them out so we can concentrate on the ones we deem important. This practice is about stopping to listen to things that would normally pass us by, as way of increasing our sense of belonging in the world.