Question: bilakah telefon nada sentuh pertama dikeluarkan
Answer: 1963-11-18; 11-18-1963; 1963-11-18; 1963 November 18; 18/11/1963; 18-11-1963; 1963 11 18; 18 November 1963; 18 11 1963; 11/18/1963; 1963 november, 18; 11 18 1963