I need the ability to have no line privacy on an nec sl2100 on the station side. The trunk no privacy setting is flashing and confusing. I can do the barge in feature successfully on an incoming call to the system but not to an outgoing call. I have pretty much enabled everything in 20-13 for COS 1. I've figured out by accident that on an outgoing call, if I put it on hold and then retrieve it from hold, I can then barge in from another phone. Very weird.