Manually setting entry codes for 1833, 1835, and 1837 callbox models

At the callbox, do the following:

• *02 plus the master code to get into programming mode.
• Enter the directory code associated with the entry code and then *.  
• Enter 0 or another number plus * to replace the entry code.  
• Screen takes you back to ask for another directory code so you can do this again if needed.  Press 0 and # together to exit when done.