We've all likely heard the recorded announcements on the MBTA's buses, trolleys and trains.

They're made by Frank Oglesby Jr., who's been the voice of the T subway announcements for more than 20 years. The recordings calmly remind riders to pick up their trash, not to smoke on-board, and which train is arriving next.

Today, Oglesby is retiring. So we thought we'd revisit a story by WBUR's Jessica Alpert, who tapped her Charlie Card at South Station and took a T ride with the voice of the T himself.