Use the Conference feature, with the associated conf button, to create a conference without the assistance of an attendant.

A user with a multiple appearance telephone with a conf button can create a conference with as many as six participants. However, if the 12–party Conferences field is enabled in the Feature-Related System Parameters screen, 12 parties can participate in a conference call.

A user with a single-line telephone can create a conference with as many as three participants. Each of these three participants can then add another participant. Thus, a user who has a single-line telephone can create a conference call with as many as six participants.