Placing Multi-Point Calls - Polycom ViewStation FX User Manual

Chapter 2

Placing Multi-point Calls

Network
Interface
V.35
PRI
BRI
H.323 Only
© Polycom, Inc.
When there are more than two parties participating in a video call it
is called a multi-point call. You can have up to four parties
participating in a call with the ViewStation FX or the VS4000. If you
have a PRI network interface, you can place multi-point calls over a
PRI line or over H.323 on the LAN. If you have a V.35 network
interface, you can place multi-point calls only over H.323 on the
LAN.
The following chart shows the maximum allowable dialing speeds
according to the number of sites in a call.
Number of Sites
to Call
2
3
4
2
3
4
2 with 2 lines
2 with 3 lines
2 with 4 lines
3 with 2 lines
3 with 3 lines
3 with 4 lines
4 with 2 lines
4 with 3 lines
4 with 4 lines
All parties in a multi-point call must be connected at the same speed.
You can place multi-point calls manually by adding sites to your
video calls, or you can create multi-point address book entries. For
information on creating multi-point address book entries, refer to the
Using the ViewStation FX and the VS4000
Maximum Speed For Each party in the Call
H.320
1472
1472
256
384
512
128
168
256
64
128
128
Refer to H.323 speeds in this table
53
(in kbps)
H.323
1920
512
384
1920
512
384
1920
1920
1920
512
512
512
384
384
384
ViewStation FX/VS 4000 User's Guide