I have never experienced this on any version of Partner Mail so I must ask you if you know how to make Handset, Ringer and Speakerphone volume adjustments? While the handset is off-hook, use the volume up/down bar to adjust the volume. It will also be accompanyied by a bar graph on the LCD display. With the handset on the cradle, touch the bar to adjust the ringer volume. With the speakerphone on, use the bar to adjust the volume. There are three seperate settings, including a headset via the handset volume. After a system reset or the Telephone is disconnected/connected, the volumes revert back to low.