NEC UNIVERGE SV9100 Features And Specifications page 1040

3. Press the key you want to program.
4. Dial 03.
*
5. Dial the number of the extension you want to appear on the key.
6. Press Hold once for Immediate Ring, (skip to step 8 for Delayed Ring).
7. Dial the mode number in which the key rings.
8. Press hold a second time for Delayed Ring, or Skip to step 10.
9. Dial the mode number in which the key delays ringing.
10. Press Speaker.
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