NEC DS1000 Feature Handbook page 89

5. Press one 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 it, or
Distinctive Ringing
to select Ring Type A.
to select Ring Type B.
to select Ring Type C.
select Standard (i.e., normal ringing for this
exit.
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