Polycom 2000 用户手册

Select the dialing direction:

•

Dial-in – The participant dials in to the 
conference.

•

Dial-out – The MCU dials out to the participant.

•

This field applies to IP participants only.

•

Dial-out is forced when defining an ISDN/PSTN 
participant.

The network communication protocol used by the 
endpoint to connect to the conference: H.323, SIP or 
ISDN/PSTN.
The fields in the dialog box change according to the 
selected network type.

IP Address
(H.323 and SIP 
Only)

Enter the IP address of the participant’s endpoint.

•

For H.323 participant define either the endpoint 
IP address or alias.

•

For SIP participant define either the endpoint IP 
address or the SIP address.

Note: This field is hidden when the ISDN/PSTN 
protocol is selected.

Phone Number
(ISDN/PSTN 
Only)

Enter the phone number of the ISDN/PSTN 
participant.
Note: This field is only displayed when the ISDN/
PSTN protocol is selected.