The chapel here at OSV has a bell. Or rather, it has a recording of a bell that whoever is serving Mass that day activates by pushing a button in the sacristy five minutes before Mass is scheduled to begin. The recording plays throughout the building on our public-address system, sometimes triggering the prepare-for-an-announcement tone before the bells start ringing, and always ending abruptly in the midst of the last bell.
Still, we at OSV are rather fond of that bell, which reminds all of us, even when we cannot attend Mass, of the sacrifice that is about to take place and calls us to pause, however briefly, to join ourselves spiritually to that sacrifice.