For Messages:

On BlackBerry 7200 & BlackBerry 7700 Series:

On BlackBerry 7100 Series:

To jump to the bottom of the Messages screen

Press B

Press CV

To jump to top of Messages screen

Press T

Press ER

To mark a message opened/unopened

Press Alt + U

-

To move down a page in a message,

Press Enter

Press DF

To move up a page in a message

Press Alt + Enter

Press JK

To reply to a message

Press R

Press QW

To forward a message

Press F

Press OP

To reply-to-all

Press L

Press AS

For Phone:

To open the Phone screen

Press Phone button (7200, 7700) or Spacebar (all)

Press Send

To change the volume during a call

Roll Trackwheel

Roll Trackwheel

To dial the last number

Press Spacebar + Enter

-

Access your voicemail

Hold 1

Hold 1

End a call

Press Escape button

Press End