atcomsystems.ca/forum Forums TDM Business Telephone Systems Nortel Telephones & Systems Feature 900 codes not active

I am having difficulties finding the directions to reactivate the F980-F989 feature codes. I thought that I would use feature 903, see the codes, then press OK to accept the default codes. Feature 903 comes up as an inactive code. I forget what to do at this point. Thanks for the help.