To create a conference call on the Cisco Landlines, while already on the line with someone (not on hold) follow these steps:

  1. Press the Conference button: rectangular button with silhouette icon of 3 people
  2. Make a new call.
  3.  Press the Conference button (before or after the party answers).
    The conference begins and the phone displays
  4. Repeat these steps to add more participants.
    The conference ends when all participants hang up.