Polycom KIRK 6040 - Manual (Page 17)

Polycom Kirk 6020-6040 User Guide Navigating Handset
18 Polycom, Inc.
Press top of navigation key to start at the bottom of name list with the
letter z.
Keypad locked/unlocked: While on hook, press Menu followed by  (Display
shows the key lock icon followed by the text Keypad locked/unlocked).
Missed calls: While on hook, press right side of navigation key to enter a list of
missed call.
Redirect a call: While on a call, press R. The feature is system dependent.
Save name and number: While on hook, enter number and press Save.
Silent on/off
:
While on hook, press Menu followed by # . (Display shows the
silent icon followed by the text Sient mode on/of, and a small icon is placed
in status line).
Speed dial: While on hook, press digit equivalent to number of the contact in
the speed dial list continuously until call is started.