Polycom DOC2231A Getting Started Manual page 67

SIP Participant
The Identification parameters change according to the selected Interface Type.
3. In the Name box, enter the participant's name.
4. For video participants using H.221 aggregation, enter the phone numbers
separated by semicolons.
For example, for a 2B participant: 9251921;9251922. If using Bonding
(both numbers are the same), enter the number once. Example: 9251921.
5. In the Connection Type box, select Dial-out if the MCU/operator calls
the participant.
6. In the Interface Type box, select the Network Protocol used to connect
the participant to the conference: ISDN, H.323 or SIP.
7. Define the participant properties as follows:
a. If you are defining an ISDN participant:
In the Participant Phone Numbers box, enter the participant's
number.
Chapter 5 - Basic Operations
5-15