NEC SL2100 Features And Specifications Manual page 202

SL2100
Operation
To change an extension Class of Service (via Service Code 677) :
1. Press Speaker key.
2. Dial 677.
3. Dial the extension number you want to change.
You see: MODE1: nn
Press Hold key to leave the current value unchanged.
The extension you dial may be set to block your attempt to change their Class of Service.
C
4. Enter the Day 1 Mode Class of Service for the extension you selected in step 3 and press Hold
key.
You see: MODE2: nn
Press Hold key to leave the current value unchanged.
5. Enter the Night 1 Mode Class of Service for the extension you selected in step 3 and press Hold
key.
You see: MODE3: nn
Press Hold key to leave the current value unchanged.
6. Enter the Midnight 1 Mode Class of Service for the extension you selected in step 3 and press
Hold key.
You see: MODE4: nn
Press Hold key to leave the current value unchanged.
7. Enter the Rest 1 Mode Class of Service for the extension you selected in step 3 and press Hold
key.
You see: MODE5: nn
Press Hold key to leave the current value unchanged.
8. Enter the Day 2 Mode Class of Service for the extension you selected in step 3 and press Hold
key.
You see: MODE6: nn
Press Hold key to leave the current value unchanged.
9. Enter the Night 2 Mode Class of Service for the extension you selected in step 3 and press Hold
key.
You see: MODE7: nn
Press Hold key to leave the current value unchanged.
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ISSUE 1.0
Class of Service