On some systems, control-S retains its meaning, but control-Q is replaced by a second control-S to resume output.
ˌɔn sˌʌm sˈɪstəmz, kəntɹˈoʊlˈɛs ɹᵻtˈeɪnz ɪts mˈiːnɪŋ, bˌʌt kəntɹˈoʊlkjˈuː ɪz ɹᵻplˈeɪst baɪ ɐ sˈɛkənd kəntɹˈoʊlˈɛs tə ɹᵻzˈuːm ˈaʊtpʊt.