NEC Univerge SV8100 Features And Specifications Manual page 366

Issue 8.01
To toggle between Private and Non-Private mode:
1. Press the Meet-Me Conference key (Program 15-07-01, SC 751: 32).
- OR -
Press the Trunk Line Key. (This toggles from Non-Private to Private. To go back to
Non-Private, the Meet-Me Conference Key above must be pressed.)
2 - 338
UNIVERGE SV8100
Conference, Voice Call/Privacy Release