sˈɪmpəl ɹᵻkˈoːɹdɚz ˈɔːlsoʊ ɛɡzˈɪst wˌɪtʃ jˈuːz ˌɪndᵻvˈɪdʒuːəl kɐsˈɛt ɔːɹ mˌaɪkɹoʊkɐsˈɛt tˈeɪp ɹᵻkˈoːɹdɚz ˌɔn ˈiːtʃ ˌɪndᵻvˈɪdʒuːəl fˈoʊn.
Simple recorders also exist which use individual cassette or microcassette tape recorders on each individual phone.