DoorKing 1820 - Manual (Page 36)

3.3.3 Erase Preprogrammed Phone Number
This sequence allows you to erase individual preprogrammed phone numbers.
Factory Default = (Not Programmed)
1. Take the doorman telephone off hook.
2. Press *11 and enter the four-digit MASTER CODE _ _ _ _ (beep).
3. Enter the four-digit directory code of the number to be erased (4000-9999) _ _ _ _ then
press * (beep).
4. Repeat steps 3 to erase additional numbers.
5. Hang up the doorman telephone to end the programming session.
3.3.4 Erase All Preprogrammed Phone Numbers
This sequence erases all 10 preprogrammed phone numbers.
Factory Default = (Not Programmed)
1. Take the doorman telephone off hook.
2. Press *17 and enter the four-digit MASTER CODE _ _ _ _ (beep).
3. Enter 9 9 9 9 then press * (beep).
4. Hang up the doorman telephone to end the programming session.
Page 36 1820-065-B-2-06