Thank you - you've literally just saved me £500. Turns out I've been trying to track down the USRobotics Sportster voice modem sound from your first link. Even

Thank you - you've literally just saved me £500. Turns out I've been trying to track down the USRobotics Sportster voice modem sound from your first link. Even better as I can't find my 56k USRobotics, only the 33.6k one, so probably wouldn't have ever found that sound with hardware either. Thanks; that's been lodged in my head for a couple of decades.