Dial-In Calling; Dial-In Calling Scenarios; With An Existing Point-To-Point Call - Polycom ViewStation FX4000 User Manual

Dial-In Calling

Dial-In Calling Scenarios

With an Existing Point-to-Point Call

© Polycom, Inc. 2002
The Dial-In Calling feature allows users who are already in a
videoconference to answer and add an incoming video call. Thus, an
established point-to-point call receiving and accepting an incoming
call becomes a multipoint videoconference.
Furthermore, if the incoming call is of a different type than the
already-established call or calls, the videoconference is now a mixed
protocol call. For example, the established call could be IP and the
incoming call could be ISDN. For more information about mixed
protocol calls, refer to
Downspeeding, the ability to reduce the data rate of the call
dynamically, is performed by the system when necessary. Incoming
calls (both IP and ISDN) dialed at speeds greater than the current
conference speed will be negotiated down to the current conference
speed and admitted into the conference (rate matching).
If a password has been set on the ViewStation FX or VS4000 that acts
as the MCU, a Meeting Password will be required from each site
calling into the conference. For more information, refer to
Multipoint Conference Password on page
The following table assumes that there is already an established
point-to-point call (1 MCU and 1 site).
The MCU is embedded in the ViewStation FX or VS4000 system.
The table describes the number of incoming calls that can be
separately or simultaneously received by the ViewStation FX or
VS4000 embedded MCU (1 site) already in a point-to-point call with
Chapter 6 - Using Advanced System Features
Mixed Protocol Dialing, on page
Note
224.
229.
237