Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 519

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Programming
Users can program their extensions by dialing programming codes or, on MLX
display telephones, by selecting features from the display. When an extension
user programs his or her extension, the system considers the extension busy;
therefore, no incoming calls arrive at the extension until programming is
completed. See Appendix C, "General Feature Use and Telephone
Programming," for instructions on how to program features on MLX, analog,
multiline, and single-line telephones.
NOTE:
When you are programming a feature onto a button that already has a
feature assigned to it, make sure before you begin that any light associated
with the button is off. In some cases, if the light is on, the feature remains
active, even though a new feature has been programmed onto the button.
If this happens, you can turn off the original feature only by programming a
new button with that feature and deactivating the feature with that button.
You can then delete the new feature.
Issue 1
June 1997
Page 487