Polycom ViewStation FX, Руководство пользователя

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Chapter 2 Using the ViewStation FX and the VS4000
© Polycom, Inc. 53 ViewStation FX/VS 4000 User’s Guide
Placing Multi-point Calls
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.
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
Network
Interface
Number of Sites
to Call
Maximum Speed For Each party in the Call
(in kbps)
H.320 H.323
V.35
2
3
4 1472 1920
512
384
PRI
2
3
4 1472 1920
512
384
BRI
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
256
384
512
128
168
256
64
128
128
1920
1920
1920
512
512
512
384
384
384
H.323 Only Refer to H.323 speeds in this table