If it still happens, email to phone or telephone Lolly at 260. The Release key abandons any changes and exits without saving any changes. The contrast has nine levels, accessed by the numbers 1 through 9 on the keypad.
Contrast is relative, experiment for the appropriate level.
This enables you to test the volume of your telephone's ring. You can then adjust the volume using the long button with two speakers on it, at the bottom of your phone. You can also adjust the volume any time your telephone rings. To adjust the volume of the page, which plays through the phone speaker, you must use the volume bar while a page is occurring.