Opened at the Shubert Theatre on November 29, 1956. Ran 924 performances, to about February 1959. Bells Are Ringing is a musical with a book and lyrics by Betty Comden and Adolph Green and music by Jule Styne. The story revolves around Ella, who works at an answering service, and the characters that she meets there. The main character was based on Mary Printz, who worked for Green's answering service. Three of the show's tunes, "Long Before I Knew You", "Just in Time", and "The Party's Over", became standards. Wiki link