NEC P/N 1093099 Feature Handbook page 49

To replace 2049265410 with 2039265400:
Dial * followed by 2049265410
1.
Press Volume Up until you see:
2.
Dial 3 . You see:
3. 203-265410
Press Volume Down
4.
Dial 0 . You see:
5. 203926540-
Press Volume Down
6.
Press line key to dial number.
7.
DSX Feature Handbook
Dial Number Preview Editing Example
. You see:
2049265410-
20-9265410
until you see:
20392654-0
until the entire number displays to the left of the cursor. You see:
Dial Number Preview
In these instructions:
[Super Display Soft Key]
[Keyset Soft Key]
2039265400-
Features ◆ 41