Polycom DOC2232A - Manual (Page 61)

Chapter 5 - Basic Operation
5-17
3. Click the Participants tab to add participants to the conference.
The Properties - Participants dialog box opens.
4. In the Pre-Defined Participants list, select the participants to add and
then click the >> button.
5. Alternatively, you can define a new participant by clicking the New
button.
Select this check
box to designate an
operator- controlled
dial-out conference
connection.