ɐdˈɪʃənəli hiː spˈɛnt twˈɛlv jˈɪɹz æɾ ˈeɪtiːəntˈiː bˈɛl lˈæbɹətˌɔːɹiz, sˈɜːvd æz ɐ jˈuː.ˈɛs. dˈɛlɪɡˌeɪt tə ðɪ ˌɪntɚnˈæʃənəl tˌɛlᵻkəmjˌuːnɪkˈeɪʃən jˈuːniən, ænd sˈɜːvd ɔnðə fˈækəltiz ʌv ˈɛŋkˈʌmbaɪ ˌɪntɚnˈæʃənəl kˈɑːlɪdʒ zˈæmbiə, ænd sˈɪɹɐkjˌuːs jˌuːnɪvˈɜːsᵻɾi.
Additionally he spent twelve years at AT&T Bell Laboratories, served as a U.S. delegate to the International Telecommunication Union, and served on the faculties of Nkumbi International College Zambia, and Syracuse University.