Plus plus Volume 1.11 - is a small extension to increase Newton's volume when you dial phone numbers. It does this by patching the O/S . It also uses it's own set of touch tone sounds as the ones in ROM don't sound so good when the volume in increased. This may be why Apple LOWERS the volume to 1/2 maximum (no matter what you have the sound level set) when dialing. ++Volume will set the volume to the loudest setting before dialing. After dialing the volume is reset to what it was. ++Volume is shareware and has a fee of $10. It will expire  45 days after installation if unregistered. Requires OS 2.x.