NEC DS1000 Feature Handbook page 22

Distinctive Ringing
5. Press a key of the type you selected above. You see
(example for Line Key 01 shown below):
– Dial
– Dial
– Dial
– Dial
type of call).
6. Press another key to program or
To set up Key Ring Override for your super display telephone:
– Your extension's Class of Service may block you from
doing this. Ask your Communications Manager.
1. While your phone is idle, press
18
to select Ring Type A.
to select Ring Type B.
to select Ring Type C.
select Standard (i.e., normal ringing for this
PROGRAM
exit.
. You see: