Before Aldrin could take a photo of Armstrong with the flag, President Richard Nixon spoke to them through a telephone-radio transmission, which Nixon called "the most historic phone call ever made from the White House."
bᵻfˌoːɹ ˈɔːldɹɪn kʊd tˈeɪk ɐ fˈoʊɾoʊ ʌv ˈɑːɹmstɹɔŋ wɪððə flˈæɡ, pɹˈɛzɪdənt ɹˈɪtʃɚd nˈɪksən spˈoʊk tə ðˌɛm θɹuː ɐ tˈɛlᵻfˌoʊnɹˈeɪdɪˌoʊ tɹænsmˈɪʃən, wˌɪtʃ nˈɪksən kˈɔːld "ðə mˈoʊst hɪstˈɔːɹɪk fˈoʊn kˈɔːl ˈɛvɚ mˌeɪd fɹʌmðə wˈaɪt hˈaʊs."