NEC SL1100 Features And Specifications Manual page 289

ISSUE 2.0
2. Dial 43 for Each line key and each night mode setting.
3. Press the Select softkey.
4. Then line number 01 is indicated. Dial preferred line number if necessary.
5. Press the Select softkey. Current set Ring type is indicated at 2nd line of LCD.
6. Press the Select softkey. Then set ring tone is heard.
The << or the >> softkey can change ring tone to select.
7. Press the Save softkey. Incoming ring tone of the trunk was set. Then can continue to next trunk.
8. To finish setting, press the Back and the Exit softkey.
Features and Specifications Manual
SL1100
F
1-277