hˈaɪ kəpˈæsᵻɾi sˌʌm ʌvðə lˈɑːɹdʒɪst tˈɛlᵻfˌoʊn ɛkstʃˈeɪndʒᵻz ɪnðə wˈɜːld ɑːɹ ˌɪntɚnˈæʃənəl ɡˈeɪtweɪ ɛkstʃˈeɪndʒᵻz.
High capacity (some of the largest telephone exchanges in the world are international gateway exchanges).