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Charles Kassell Harris wrote a very popular sequel Hello Central, Give Me Heaven in 1901. The “Hello Central” phrase became quite popular—for instance All Alone! (1911, with music by Harry Von Tilzer and words by William Dillon) begins “Hello Central, Hello Central, Give me 6-0-3.”
The lyrics of After Nine have several similarities to #555 - Oh! What a Difference in the Morning both in content and form.